JP6685700B2 - Display control device, control method thereof, program, and storage medium - Google Patents

Description

  The present invention relates to a display control device and a control method thereof, and more particularly to brightness control of a display device.

  2. Description of the Related Art Conventionally, there is known a video system in which a subject is photographed by an imaging device and the video is displayed on a display device for viewing. In this type of video system, at the time of shooting, the imaging device converts the subject gradation into a video signal by converting the subject brightness into a code value based on the gamma characteristic of the imaging device. Then, at the time of display, the display device converts the code value of the video signal into an output luminance value based on the gamma characteristic of the display device. Through the above processing, it is possible to cut out a limited brightness range of a real-world subject having a very wide dynamic range and display it within the limited narrow dynamic range of the display device. . In general, in order to secure a practical input dynamic range in an image pickup apparatus at the time of shooting, a device for widening the input dynamic range by using a knee correction process has been made (Patent Document 1).

JP 2002-223373 A

  In general, the image pickup apparatus is configured to secure a practical input dynamic range by compressing the contrast in a region of medium brightness to high brightness. However, in that case, the system-wide gradation characteristics that combine the gamma characteristics of the image pickup apparatus and the display apparatus are unnatural gradation characteristics in which the contrast of the high-luminance portion is compressed with respect to the low-luminance portion. turn into. In order to avoid such a problem, it is conceivable to make the gradation characteristics of the system total, which is a combination of the gamma characteristics of the image pickup apparatus and the gamma characteristics of the display apparatus, linear. By making the gradation characteristic linear in luminance, it is possible to express with more natural gradation in the entire area from the dark portion to the highlight portion. However, when an image having a luminance linear gradation characteristic is displayed on a display device, the gradation is more natural than the general gradation characteristic that is not the luminance linear gradation characteristic, but the middle and low luminance is dark. Become.

In view of the above problems, and an object thereof to improve the visibility of the low luminance portion in the time display the image gradation characteristic close to the luminance linear than conventional.

In order to solve the above problems, the display control device of the present invention,
An image of the first type generated with the first gradation characteristic and a second type generated with the second gradation characteristic having higher gradation on the higher luminance side than the first gradation characteristic. Display control means capable of displaying the image of
Setting brightness of the display means, in accordance with a user operation, a setting means for setting one of a plurality of stages that can be set,
When the set brightness of the display means set by the setting means is the first brightness which is not the maximum step among the plurality of steps,
When displaying the image of the first type on the display means, the brightness of the display means is the first brightness,
When displaying an image of said second type on said display means, the brightness of the display unit, the first brighter than the luminance, brighter than the luminance of the brightest gray level of the first luminance And a control means for controlling the second brightness.

  According to the present invention, it is possible to improve the visibility of the middle and low brightness portions when displaying an image having a gradation characteristic that is closer to linear brightness than that of the related art.

1 is a schematic configuration diagram showing a configuration of an image pickup apparatus 100. FIG. FIG. 3 is a perspective view showing the outer appearance of the image pickup apparatus 100. Explanatory drawing of a gamma characteristic. The flowchart explaining the gamma characteristic applied at the time of imaging. The flowchart of a camera mode process. The figure which shows the example of a display in a camera mode process. The flowchart of a reproduction mode process. The flowchart of a panel brightness setting process. The flowchart of a guide display process. The flowchart of the screen process during stop. The figure which shows the example of a display in reproduction mode. The flowchart of edit processing. The figure which shows the example of a display in edit processing.

<First Embodiment>
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<Hardware configuration>
FIG. 1 shows a schematic configuration diagram of a digital camera (hereinafter, image pickup apparatus 100) as an example of a display control apparatus.

  In FIG. 1, a lens 101 is a lens group including a plurality of lenses such as a focus lens and a zoom lens, and a diaphragm 102 is arranged behind the lens 101. Light that has passed through the lens 101 and the diaphragm 102 is formed as a subject image on the image forming surface of the image sensor 105. In the image sensor 105, the formed subject image is converted from an optical signal into a video signal (video data). The video signal obtained by the image sensor 105 is sent to the signal processing unit 112. Under the control of the camera microcomputer 111, the signal processing unit 112 performs white balance correction processing by the WB correction unit 107, edge emphasis processing by the edge emphasis unit 108, and gamma correction processing by the γ correction unit 109 on the video signal.

  Further, the brightness / color information detection unit 110 divides the image in the horizontal and vertical directions, sets a plurality of brightness / color information detection frames, and integrates pixel values in the brightness / color information detection frames. Luminance information and color information in each detection frame of the subject are detected. The brightness information and the color information detected by the brightness / color information detection unit 110 are sent to the camera microcomputer 111. The camera microcomputer 111 calculates correction values used for white balance correction processing, edge enhancement processing, and gamma correction processing using the acquired subject information such as brightness and color, and white balance correction processing based on the calculated correction values. Edge enhancement processing and gamma correction processing are performed. Here, the gamma characteristic of the image pickup apparatus 100 used for the gamma correction process is a gamma correction curve for high brightness priority if the image pickup apparatus shooting mode is the high brightness priority mode, and the image pickup apparatus shooting mode is the normal shooting mode. If so, it is a gamma correction curve for normal shooting. The gamma correction curve for high brightness priority will be described in detail later. In addition, illustration and description of processes other than the white balance correction process, the edge enhancement process, the gamma correction process, and the brightness / color information detection process in the signal processing unit 112 are omitted here.

  The video signal is subjected to signal processing in the signal processing unit 112 and then output to the main body display 116 or to the external display 120 via the external I / F 119. The external I / F 119 can output video to an external display device, and examples thereof include HDMI (registered trademark), SDI, composite, and component. The camera microcomputer 111 can detect whether or not the external display 120 is connected to the external I / F 119.

  The main body display 116 is a display unit included in the imaging device 100. The main body display 116 can display an image (moving image / still image) captured by the image sensor 105 and an image reproduced from a recording medium such as the memory card 118, the magnetic tape 115, and the DVD 117. In addition, various setting information and a menu screen are displayed on the main body display 116. In the present embodiment, the main body display 116 is assumed to be a touch panel that can accept a touch operation on the screen. The main body display 116 is, for example, an organic EL (Organic Electroluminescence) display, and the brightness setting described below is the self-luminance brightness setting of the organic EL display. However, the main body display 116 is not limited to the organic EL, and a display of another system such as a liquid crystal display may be adopted. In the case of a liquid crystal display, the brightness setting is the backlight brightness setting.

  Although not shown in FIG. 1, the EVF 204, which will be described later with reference to FIG. 2, can display the same display contents as the main body display 116. The external display 120 is not included in the imaging device 100, but is an external device that can be connected via the external I / F 119, such as a television, a business-use display for checking images, and a tablet-type personal computer (PC). The signal processed by the signal processing unit 112 is recorded on the magnetic tape 115, the DVD 117, or the memory card 118.

  Further, the camera microcomputer 111 controls the accumulation and reading of signals in the image sensor 105 through the sensor control unit 106. Further, the camera microcomputer 111 controls the lens 101 such as focus and zoom through the lens control unit 103. Further, the camera microcomputer 111 controls the diaphragm 102 through the diaphragm controller 104 based on the brightness information and the color information detected by the brightness / color information detector 110. The camera microcomputer 111 also controls exposure by controlling the shutter speed through the sensor control unit 106. Further, the camera microcomputer 111 drives the lens 101 through the lens control unit 103 or controls the signal processing unit 112 to correct the camera shake of the user during shooting.

  The camera microcomputer 111 is a control unit that controls the entire imaging apparatus 100, and is a processor such as a CPU (Central Processing Unit). The ROM 111a is a non-volatile recording medium that stores constants for operating the camera microcomputer 111, various set values, and programs for realizing various flowcharts described below. The RAM 111b is a work memory for operating the camera microcomputer 111. The processes of the various flowcharts described below are realized by the camera microcomputer 111 by expanding the program recorded in the ROM 111a into the RAM 111b and executing the program.

  FIG. 2 is a perspective view showing the appearance of the image pickup apparatus 100. In FIG. 2, the main body 201 is the main body of the imaging device 100. A detachable recording medium such as a DVD, a magnetic tape, and a memory card is housed inside the imaging device 100, and a video signal and a still image can be recorded and reproduced. A built-in recording medium may be provided. The lens unit 202 is a lens unit including the lens 101. The microphone 203 is a sound collecting unit provided to record the sound at the time of shooting. EVF204 is an electronic view finder (Electronic View Finder). By looking into the EVF 204, the user can confirm the current settings and the live view (hereinafter, LV) of the subject being photographed when photographing with the camera.

  The moving image trigger switch 205 is a push button, and is a switch operated by the user to instruct start and end of moving image shooting (moving image recording). The still image trigger switch 206 is a push button, and is a switch operated by the user to instruct start and end of capturing a still image. The mode dial 207 is a rotary switch that can select either “play” for setting the play mode, “camera” for setting the camera mode, or “OFF” that is neither of them. In the present embodiment, the mode dial 207 can be selected as three of the camera mode, the reproduction mode, and the power OFF, but it is also possible to switch to another mode (for example, a communication mode for wireless communication with an external device). Good.

  The operation switch group 208 is switches and keys for the user to operate the main body, and includes, for example, keys for inputting an image quality filter mode and other keys for menu operations and reproduction system operations. Be done. The operation switch group 208 includes, for example, a menu button for displaying a menu screen, an arrow key including an up key, a down key, a left key, and a right key used for selecting an item from options. It also includes set buttons used for operations such as confirming selection.

  The main body display 116 is included in a vari-angle monitor rotatably connected to the main body 201. The vari-angle monitor has an axial direction from the closed position where the display surface of the main body display 116 faces the main body 201 to the open state, and the open position where the display surface faces the photographer side (EVF 204 side) in the open state. It is possible to rotate in two axes, that is, the axial direction from the to the inverted open position facing the subject side. FIG. 2 shows an example in which the variangle monitor is in the open position. The speaker 210 is a sounding unit that outputs a sound or a warning sound when playing a moving image. The battery 211 is a power source unit that can be attached to and detached from the main body unit 201.

<High brightness priority mode and normal (standard) gamma characteristics>
In the image capturing apparatus 100, the user selects whether to use a normal (standard) gamma characteristic or a gamma characteristic with high brightness priority (shooting gamma mode) as a gamma characteristic (gamma correction curve) at the time of shooting, and shoots. It is possible. The high brightness priority mode (High light Priority mode, hereinafter sometimes abbreviated as HP mode) is set when the high brightness priority gamma characteristic is used, and the standard mode is set when the normal gamma characteristic is used. The setting of the shooting gamma mode as described above is performed, for example, by an operation on a shooting gamma mode switching screen described later with reference to FIG. 6B, and the setting result (HP mode or standard mode) is held in the RAM 111b. It

Next, the gamma correction characteristic for the high brightness priority mode will be described with reference to FIG. FIG. 3 is a diagram illustrating the gamma characteristic of the image pickup apparatus 100 for the high brightness priority mode. In FIG. 3A, a gamma characteristic 301 is a gamma characteristic corresponding to the input dynamic range x ₁ , and the ITU-R BT. Gamma characteristics standardized by 709 or the like. The gamma characteristic 302 is a gamma characteristic corresponding to the input dynamic range x ₂ and represents a case where the input dynamic range is expanded to a practical range. When the gamma characteristic 302 is used as a reference, the gamma characteristic 302 does not compress the contrast of a part of the gamma characteristic, keeps the relationship of the output code with respect to the input code constant, and controls the bit from low luminance to high luminance. It has the property of fixing the allocation of.

  FIG. 3B shows an example of the gamma characteristic with high brightness priority and the normal (standard) gamma characteristic. The gamma characteristic 303 (second gradation characteristic) is a high-luminance priority of the image capturing apparatus 100 (image sensor 105) used when converting the luminance (imaging signal) of a subject into a gradation value (video signal) in HP mode. Is the gamma characteristic of. A gradation characteristic 305 is obtained as a system total of the gamma characteristic 303 at the time of imaging and the gamma characteristic 304 at the time of display (gamma characteristic at the time of outputting to the main body display 116). The gradation characteristic 305 in the case of using the HP mode has a linear characteristic in the entire area from the low luminance portion to the high luminance portion without the contrast being compressed even in the medium luminance area to the high luminance area. Has been achieved.

Here, the gamma characteristic of the image pickup device corresponding to the reference input dynamic range x ₁ is y = f (x)
Then, the gamma characteristic of the image pickup apparatus 100 when the input dynamic range is multiplied by t is
y = f (x / t)
It can be obtained by The input dynamic range may be set appropriately for each product, for each shooting mode within the same product, or adaptively set for each shooting scene within the same shooting mode. May be done.

  As described above, when the HP mode is used, it is possible to avoid the contrast compression by the gamma correction processing regardless of the input dynamic range, and more natural gradation and color reproducibility can be obtained in the entire area from the dark portion to the highlight portion. It becomes possible to realize a sharp feeling. In particular, the brilliance of metal, the transparency of water, the stereoscopic effect of blue sky or clouds, the gradation of skin tones, the color reproducibility, and the sharpness can be significantly improved.

  On the other hand, the gamma characteristic 306 (first gradation characteristic) is the gamma characteristic of the imaging device 100 (image sensor 105) used when converting the luminance (imaging signal) of the subject into gradation values in the normal (standard) mode. Is. Gradation characteristics 307 are obtained as a system total of the gamma characteristics 306 at the time of image capturing and the gamma characteristics 304 at the time of display (gamma characteristics at the time of outputting to the main body display 116). With the gamma characteristic 303 in the HP mode and the gamma characteristic 306 in the normal mode. The HP mode gamma characteristic 303 has a higher gradation on the high luminance side. That is, the number of gradation values (code values) assigned to the high brightness side of the subject brightness is large. On the contrary, in the gamma characteristic 303 in the HP mode and the gamma characteristic 306 in the normal mode. The HP mode gamma characteristic 303 has a lower gradation characteristic on the low to intermediate luminance side. That is, the number of gradation values (code values) assigned to the low luminance to the medium luminance of the subject luminance is small. Therefore, the gradation characteristic 307 when a video image captured using the normal (standard) mode is displayed has a decrease in the luminance change of the high-luminance portion with respect to the gradation characteristic of the actual subject, and the reality (natural The gradation characteristics, color reproducibility, and sharpness are lower than those of the gradation characteristic 305. In other words, when a video image captured using the normal mode is displayed, the high-luminance portion of the subject is more likely to be crushed (overexposed) than a video image captured using the HP mode. Further, when the video image captured using the HP mode is displayed, the gradation of the high-luminance portion of the subject looks smoother than that of the video image captured using the normal mode. Therefore, in an image captured using the HP mode, the visibility of a high-luminance portion such as the brilliance of metal, the transparent feeling of water, and the stereoscopic effect of blue sky or clouds is improved. On the other hand, the low-to-medium luminance portion of the gradation characteristic 307 is more prominent than the gradation characteristic of the actual subject, and the low-to-medium luminance portion appears brighter than the image using the gradation characteristic 305.

  Next, gamma correction processing and metadata recording processing in the high brightness priority mode by the camera microcomputer 111 in the image pickup apparatus 100 will be described with reference to the flowchart in FIG. FIG. 4 is a flowchart showing the camera gradation correction processing performed by the image pickup apparatus 100. This process is repeated when the imaging apparatus 100 is started in the camera mode and the shooting of the live view (LV) is started, and is applied to both the LV image and the captured image for recording after the start of moving image recording. Is. The process of FIG. 4 is described in detail specifically for the LV display and moving image recording process for each gamma characteristic performed in the camera mode process described later with reference to FIG.

  In S401, the camera microcomputer 111 determines the input dynamic range. The input dynamic range here is a predetermined value set in advance for each of a plurality of shooting modes included in the camera mode, or based on the brightness information and color information detected by the brightness / color information detection unit 110. This is the calculated value. In S402, the camera microcomputer 111 performs exposure control based on the brightness information and color information detected by the brightness / color information detection unit 110.

  In step S403, the camera microcomputer 111 determines whether the shooting gamma mode held in the RAM 111b is the high brightness priority mode (HP mode). In the case of the high brightness priority mode, the process proceeds to S404, and the gamma correction characteristic used for the gamma correction process is determined to be the gamma correction curve for high brightness priority. In S405, the camera microcomputer 111 records the metadata corresponding to the high-luminance priority mode for the captured image. Here, the recorded metadata includes a flag for indicating the high-luminance priority mode, an input dynamic range, a magnification of a preset display luminance with respect to a reference value, a peak luminance value, gamma shape information and base gamma in the imaging apparatus 100. And so on.

  On the other hand, if it is determined in S403 that the standard mode is not the high-luminance priority mode, the camera microcomputer 111 determines the gamma correction characteristic used in the gamma correction process to be the gamma correction curve for normal shooting in S406. In S407, the camera microcomputer 111 records the metadata corresponding to the standard mode for the image to be captured. Here, the metadata to be recorded includes a flag for indicating a normal shooting mode, an input dynamic range, a magnification of a preset display luminance with respect to a reference value, a peak luminance value, gamma shape information in the imaging apparatus 100, base gamma, and the like. is there.

  In step S408, the camera microcomputer 111 performs gamma correction processing based on the determined gamma correction characteristics, and ends the camera gradation correction processing. The camera microcomputer 111 repeats the camera gradation correction processing until the camera mode ends.

<Camera mode processing>
FIG. 5 shows a flowchart of processing in the camera mode in the image pickup apparatus 100. When the image pickup apparatus 100 is started in the camera mode, the process of FIG. 5 is started.

  In step S501, the camera microcomputer 111 determines whether the shooting gamma mode held in the RAM 111b is the high-luminance priority mode (HP mode). If the shooting gamma mode is the HP mode, the process proceeds to S502, and if it is not the HP mode, the process proceeds to S503.

  In S502, the camera microcomputer 111 performs a panel brightness setting process (which will be described later with reference to the flowchart of FIG. 8). In S503, the camera microcomputer 111 reads the user-set brightness for the main body display 116 stored in the ROM 111a, and displays the main body display 116 at the user-set brightness. The set brightness of the main body display 116 is set from a brightness setting screen which will be described later with reference to FIG. Also, if the monitor gamma has been changed at the time of view assist, it is displayed in the normal monitor gamma that was restored. Hereinafter, when it is described that “the main unit display 116 is displayed at the user-set brightness”, the monitor gamma is not the one changed at the time of view assist (gamma characteristic 312 described later) but the normal monitor gamma (gamma characteristic described later). 304) is applied. In step S <b> 504, the camera microcomputer 111 displays video data (LV image) captured by the image sensor 105 and signal-processed by the signal processing unit 112 on the main body display 116. FIG. 6A shows a display example of the LV image 600 on the main body display 116. In the HP mode, this screen is displayed with the brightness according to the panel brightness setting process of S502.

  In step S505, the camera microcomputer 111 determines whether or not there is an instruction to display the shooting gamma mode switching screen on the main body display 116. If there is an instruction to display the switching screen, the process proceeds to S506, and if not, the process proceeds to S510.

  In S506, the camera microcomputer 111 generates a switching screen (shooting gamma mode setting screen) as shown in FIG. 6B and displays it on the main body display 116. On the shooting gamma mode switching screen, an option 601 for selecting the standard (first mode) as the shooting gamma mode and an option 602 for selecting the HP mode (second mode) are displayed. When any one of the options 601 and 602 is selected by the direction key or the touch operation, an explanation (guide) regarding the selected option is displayed. In the example of FIG. 6B, since the HP mode option 602 is selected, a guide 603 that describes the HP mode is displayed. The guide 603 displays that "a high-luminance area is not compressed and is photographed with natural gradation. You can enjoy higher-definition images by setting a bright external monitor." That is, a description of what kind of shooting can be performed in the HP mode and a message prompting the user to increase the set brightness of the external monitor are displayed.

  In step S <b> 507, the camera microcomputer 111 determines whether or not any option (standard / high-brightness priority mode) has been selected and determined by the user on the switching screen. When the set button is pressed or the close icon 604 is touched while either of the options 601 and 602 is selected, the selected shooting gamma mode is determined (set). If the user selects any one of the options on the switching screen and performs an operation of determining, the process proceeds to S508, and if not, the process proceeds to S509.

  In S508, the camera microcomputer 111 determines the shooting gamma mode selected by the user in S507, and holds the determined shooting gamma mode in the RAM 111b. The determined shooting gamma mode may be recorded in the ROM 111a. In S509, the camera microcomputer 111 determines whether or not there is an operation to close the switching screen. If there is a close operation, the process transitions to S501, and if not, the process transitions to S507. The operation of closing the switching screen includes, for example, pressing of a menu button.

  On the other hand, if the instruction is not to display the shooting gamma mode switching screen in S505, the process proceeds to S510, and the camera microcomputer 111 determines whether or not there is an instruction operation to display the menu screen. The instruction operation for displaying the menu screen includes, for example, pressing a menu button. If there is an instruction operation to display the menu screen, the process proceeds to S511, and if not, the process proceeds to S531.

  In S511, the camera microcomputer 111 reads the user-set brightness for the main body display 116 stored in the ROM 111a, and displays the top menu of the menu screen on the main body display 116 at the user-set brightness. That is, even when the brightness of the main body display 116 is higher than the user-set brightness set by the user due to the view assist setting being on and in the HP mode, the user setting is switched according to the switching to the menu screen. Return to brightness. This is because the menu screen is a screen that displays a video that is not the captured image (a screen that does not display the captured image).

  In S512, the camera microcomputer 111 determines whether a menu item for performing view assist setting has been selected from among the plurality of menu items on the menu screen. If the menu item for view assist setting is selected, the process proceeds to S513, and if not, the process proceeds to S516. In S513, the camera microcomputer 111 displays the view assist setting screen on the main body display 116 and determines whether or not the setting is selected by the user.

  FIG. 6C shows a display example of the view assist setting screen on the main body display 116. On the view assist setting screen, an option 611 for turning on (enable) the view assist and an option 612 for turning off (invalid) the view assist are displayed, and the user can select and set one of them. The view assist is an assist function relating to visibility when shooting in the HP mode and when playing back an image shot in the HP mode and displaying it on the main body display 116. When the view assist is set to ON, the brightness of the display 116 is automatically increased when displaying a live view image captured in HP mode and when reproducing and displaying an image captured in HP mode. (The brightness is changed automatically). The view assist is applied not only in the camera mode but also in reproducing and displaying the image recorded in the HP mode in the reproducing mode or the like.

  The input gamma characteristic in the HP mode applied at the time of image pickup is made to be linear in the total gradation characteristic of the system including the output gamma characteristic when displaying and outputting on the display, so that the entire area from the dark portion to the highlight portion can be obtained. This is a gamma characteristic for expressing with more natural gradation. However, when an image having a gradation characteristic of linear brightness is displayed, the middle and low luminances are darker than those of an image recorded with a normal input gamma characteristic, although the gradation characteristic is natural. A view assist function is provided to improve the appearance of the middle and low brightness.By turning on the view assist setting, the display brightness of the display can be increased and the middle and low brightness can be displayed so that it does not become dark. it can. When the view assist setting is off, the display brightness is not automatically increased even in the HP mode.

  If there is an operation of selecting one of the options 611 and 612 by operating the up and down keys of the cross key or touching the options 611 or 612, the process proceeds to S514. In S514, the camera microcomputer 111 holds the setting (view assist on / off) selected in S513 in the RAM 111b. Note that the settings may be stored in the ROM 111b so that the settings are retained even when the power is turned off. When the setting of the view assist is changed from on to off, the view assist is canceled. That is, the HP moving image displayed after this is displayed in a state in which the brightness of the main body display 116 raised during the view assist is returned, and in a state in which the monitor gamma is changed back if the monitor gamma is changed during the view assist. In step S515, the camera microcomputer 111 determines whether or not there has been an operation of closing the view assist setting screen (pressing the menu button or touching the close icon 613). If there is a close operation, the process transitions to S501, and if not, the process transitions to S513.

  In S516, the camera microcomputer 111 selects, from among the plurality of menu items on the menu screen, a menu item that transits to a setting screen displaying the LV image (video data) processed by the signal processing unit 112 in the background. Determine whether Menu items for transitioning to the setting screen displaying the LV image in the background include, for example, brightness setting, soft zoom control for selecting whether to add inertia to the start point and end point during zoom operation, and change zoom speed during zoom operation. There is a zoom speed level to do. With respect to these menu items, displaying the LV image in the background makes it easier for the user to understand the change in the setting. If the menu item that causes a transition to the setting screen displaying the LV image in the background is selected, the process transitions to S517, and if not, the process transitions to S521.

  In S517, the camera microcomputer 111 determines whether or not the shooting gamma mode held in the RAM 111b is the high-luminance priority mode. If it is the HP mode, the process proceeds to S518, and if it is not the HP mode, the process proceeds to S519. Transition. In step S518, the camera microcomputer 111 performs a panel brightness setting process (which will be described later with reference to the flowchart of FIG. 8). In S519, the camera microcomputer 111 displays a setting screen (setting screen displaying the LV image in the background) corresponding to the menu item selected in S516, and performs setting according to the setting change operation by the user.

  FIG. 6D shows a display example of the brightness setting screen as an example of the setting screen corresponding to the menu item selected in S516. This screen is a setting screen that can be displayed together with an image taken in the HP mode under the menu screen. On the brightness setting screen, the user can select and set one of two setting values as the brightness of the main body display 116. On the brightness setting screen, a high brightness (HIGH) option 621 and a normal (NORM) option 622 are displayed so as to be superimposed on the LV image 623. When the user selects one of the options by operating the up and down keys or touching the operation, the selected brightness is set, and display is performed at the selected brightness. The user can set the desired brightness while checking the appearance of the background LV image 623. The set brightness is recorded in the ROM 111a and is applied to the display when the HP mode is not set and the display when the view assist function is off in the HP mode. The brightness set here is hereinafter referred to as "user set brightness". In the present embodiment, the user-selectable brightness has two levels of brightness, but the brightness may be selected from multiple levels of three or more levels.

  In S520, the camera microcomputer 111 determines whether or not there is an operation of closing the setting screen displayed in S519. If the closing operation is performed, the process proceeds to S501, and if the closing operation is not performed, the process proceeds to S519.

  In S521, the camera microcomputer 111 determines whether or not there is an operation of closing the menu screen. If there is a close operation, the process transitions to S501, and if not, the process transitions to S522. In S522, the camera microcomputer 111 performs other processing according to the other menu item selected on the menu screen. Other processing (other setting processing) includes, for example, setting regarding image quality of a moving image to be captured, setting regarding AF method, and the like.

  In S531, the camera microcomputer 111 determines whether or not the moving image trigger switch 205 has been pressed. If it is pressed, the process proceeds to S532, and if not, the process proceeds to S538. In S532, the camera microcomputer 111 determines whether the shooting gamma mode stored in the RAM 111b is the HP mode. When it is determined that the mode is the HP mode, the process proceeds to S533, and when it is determined that the mode is not the HP mode (the standard mode), the process proceeds to S535.

  In step S533, the camera microcomputer 111 starts recording the image in the HP mode obtained by the image sensor 105 on the magnetic tape 115, the DVD 117, or the memory card 118 and obtained from the signal processing unit 112. The image in the HP mode is an image obtained by applying the gamma correction curve for high brightness priority (gamma characteristic 303) as described in S404. In step S534, the camera microcomputer 111 adds attribute information (hereinafter referred to as HP information) that can identify that the image was captured in the HP mode, as the metadata of the moving image recorded in step S533. The HP information may be recorded as a header of the moving image file or may be recorded in a management file associated with the moving image file.

  In S535, the camera microcomputer 111 starts recording the normal mode image captured by the image sensor 105 on the magnetic tape 115, the DVD 117, or the memory card 118 and obtained from the signal processing unit 112. The image in the normal mode (standard mode) is an image obtained by applying the gamma correction curve (gamma characteristic 306) for normal shooting, as described in S406.

  In S536, the camera microcomputer 111 determines whether or not the moving image trigger switch 205 has been pressed. If it is determined that the moving image trigger switch 205 has been pressed, the process proceeds to S537, the camera microcomputer 111 stops the recording of the moving image, and closes the moving image file. On the other hand, if it is determined that the moving image trigger switch 205 is not pressed, the process returns to S536, and the camera microcomputer 111 continues shooting and recording of the moving image.

  In S538, the camera microcomputer 111 determines whether the mode dial 207 has been operated. If it is determined that the operation has been performed, the process proceeds to S539, and if not, the process proceeds to S505. In S539, the camera microcomputer 111 determines whether the result of the operation in S538 is the reproduction mode. If it is determined to be in the reproduction mode, the process proceeds to S540 (transition to the reproduction mode), and the camera microcomputer 111 executes the reproduction mode process. The reproduction mode processing of S540 will be described later with reference to FIG. On the other hand, if it is determined in S539 that the playback mode is not set, the camera microcomputer 111 turns off the power and ends the process.

<Playback mode processing>
FIG. 7 shows a flowchart of processing in the reproduction mode in the image pickup apparatus 100. When the image pickup apparatus 100 is started in the reproduction mode, or when the camera mode is changed to the reproduction mode, the processing of FIG. 7 is started. The process shown in FIG. 7 is a detail of the reproduction mode process in S540 of FIG.

  In step S701, the camera microcomputer 111 reads the user-set brightness stored in the ROM 111a and displays the main body display 116 at the user-set brightness. In step S <b> 702, the camera microcomputer 111 reads the images stored on the magnetic tape 115, the DVD 117, or the memory card 118 and the attribute information of each image, and displays thumbnails of the images on the main body display 116 as a list.

  FIG. 11A shows a display example of the thumbnail list display (index display, multi-display) displayed on the main body display 116 in S702. Thumbnail images 1101 to 1108 are displayed, and a thumbnail image corresponding to an image shot in the HP mode is attached with an HP icon 1109 indicating that it is an HP moving image. In the following, an image taken in the HP mode will be referred to as an HP moving image. In addition, the image captured in the normal mode and the live view image captured in the normal mode are collectively referred to as the first type of image, the image captured in the HP mode and the live view image captured in the HP mode. The images of the second type are collectively referred to. In the illustrated example, the moving images indicated by the thumbnail images 1101, 1102, 1108 are HP moving images. It should be noted that whether or not the image captured in the HP mode is identified by whether or not the HP information is added to the read attribute information of each image. In this thumbnail list display, the brightness is not changed by the view assist function even if the thumbnail of the HP moving image is included.

  In S703, the camera microcomputer 111 determines whether or not there is a user operation of selecting any of the thumbnail images displayed in the thumbnail list (whether or not a moving image has been selected). If any thumbnail image is selected, the process proceeds to S704, and if not, the process of S703 is repeated (waiting for selection of thumbnail image). In step S704, the camera microcomputer 111 starts reproduction and display of the moving image corresponding to the thumbnail image selected by the user in step S703. That is, the camera microcomputer 111 reads out a moving image to be reproduced stored in the magnetic tape 115, the DVD 117, or the memory card 118, controls the signal control unit 112 to reproduce the moving image, and displays the reproduced moving image on the main body display 116. . Alternatively, it is output from the external I / F 119 to display the reproduced moving image on the external display 120.

  11B and 11C show display examples during reproduction of a moving image on the main body display 116. FIG. 11B is a display example of the button display “ON”, in which the HP icon 1109 and the button icon 1111 are displayed in a superimposed manner on the reproduced moving image 1110. The button icon 1111 is a button icon for performing various operations (including stop, fast forward, and fast rewind) related to the moving image reproduction operation, and when touched by a touch operation, corresponding processing is performed. The button display "ON" and "OFF" can be switched by the user (S715, S716). FIG. 11C is a display example in which the button display is “off”. The playback moving image 1110 is displayed, but the HP icon 1109 and the button icon 1111 are not displayed.

  In step S705, the camera microcomputer 111 analyzes the attribute information given to the moving image that is being reproduced, and analyzes whether there is HP information. If there is HP information in the attribute information of the moving image being played, that is, if the HP moving image is being played back, the process proceeds to S706, and if not (when a moving image that is not an HP moving image is being played back) ), The process transitions to S708. In step S706, the camera microcomputer 111 performs a panel brightness setting process (which will be described later with reference to the flowchart of FIG. 8). In S707, the camera microcomputer 111 performs guide display processing (which will be described later with reference to the flowchart of FIG. 9). If the moving image being reproduced is not the HP moving image, the camera microcomputer 111 reads out the user-set brightness stored in the ROM 111a and displays the main unit display 116 at the user-set brightness in step S708.

  In step S709, the camera microcomputer 111 determines whether the moving image being played has reached the end. If it is determined that the end has been reached, the process transitions to S710, and if not, the process transitions to S713. In S710, the camera microcomputer 111 hides the guide if the guide was displayed in the process of S707. In S711, the camera microcomputer 111 determines whether or not there is the next moving image stored in the magnetic tape 115, the DVD 117, or the memory card 118. If it is determined that the next moving image exists, the process proceeds to S712, and if it is determined that the next moving image does not exist, the process proceeds to S702. In S712, the camera microcomputer 111 starts the reproduction of the next moving image, and returns the processing to S705.

  In step S713, the camera microcomputer 111 determines whether or not a stop operation for stopping the moving image that is being played back is performed. If the stop operation is performed, the playback of the moving image is stopped and the process proceeds to step S714. If not, in step S715. Transition to. In S714, the camera microcomputer 111 executes stop screen processing (described later with reference to the flowchart of FIG. 10).

  In step S715, the camera microcomputer 111 determines whether or not the user has performed a button display switching instruction operation. If it is determined that the switching is instructed, the process proceeds to S716, and if not, the process proceeds to S718.

  In S716, the camera microcomputer 111 switches the button display between "ON" and "OFF". That is, when there is a button display switching instruction when the button display is “OFF” (FIG. 11C), the camera microcomputer 111 switches to the button display “ON” and the button is displayed as shown in FIG. 11B. The icon 1111 is displayed. By this switching, when the moving image being displayed is the HP moving image, the HP icon 1109 is also displayed. On the other hand, when the button display is “ON” (FIG. 11B) and there is an instruction to switch the button display, the camera microcomputer 111 switches to the button display “OFF” and the button icon is displayed as shown in FIG. 11C. Hide 1111. When the moving image being displayed is an HP moving image, the HP icon 1109 is also hidden along with the hiding of the button icon 1111. In S717, the camera microcomputer 111 performs guide display processing (described later with reference to the flowchart of FIG. 9).

  In S718, the camera microcomputer 111 determines whether the mode dial 207 has been operated. If it is operated, the process proceeds to S719, and if not, the process proceeds to S709. In S719, the camera microcomputer 111 determines whether or not the result of operating the mode dial 207 is the camera mode. If it is the camera mode, the process proceeds to S720, and the camera microcomputer 111 switches the process from the reproduction mode to the camera mode (FIG. 5). If the result of operating the mode dial 207 is power off, the camera microcomputer 111 turns off the power and ends the process.

<Panel brightness setting process>
FIG. 8 is a flowchart showing details of the panel brightness setting processing executed in S502, S518 of FIG. 5 and S706 of FIG. This process is a process of displaying the main body display 116 at a high brightness irrespective of the user-set brightness when the view assist function is ON in the HP mode or the HP moving image.

  In S801, the camera microcomputer 111 reads the state of the view assist setting held in the RAM 111b, and determines whether or not the view assist setting is currently on. If it is determined that the view assist is on, the process proceeds to S802, and if not, the process ends. In step S802, the camera microcomputer 111 reads the user-set brightness information for the main body display 116 stored in the ROM 111a. Then, it is determined whether or not the user-set brightness is equal to or higher than a predetermined brightness setting (a brightness setting that makes the brightness brighter than a predetermined value). In the present embodiment, whether or not the user-set brightness is high brightness (HIGH) is determined as whether or not the brightness is equal to or higher than a predetermined brightness setting. If the brightness setting value is equal to or higher than the predetermined value (high brightness (HIGH)), the process proceeds to S804, and if not (normal (NORM)), the process proceeds to S803.

  In the present embodiment, since the user brightness settings that can be set are high brightness (HIGH) and normal (NORM) (FIG. 6D), it is high brightness (HIGH) or normal (NORM). The process is branched according to, but is not limited to this. For example, if the user-set brightness can be set from three or more levels of set brightness, the process of S802 proceeds to S804 when the user-set brightness is the maximum value of the settable brightness, and is not so. In this case, the process may transition to S803. Further, for example, when the user-set brightness can be set from five levels of set brightness, or when the user-set brightness is from the brightest to the second level (in the case of 4 or 5 of the settable values 1 to 5), the processing The process may transit to S804, and the process may transit to S803 in other cases.

  In step S <b> 803, the camera microcomputer 111 controls the brightness of the main body display 116 to a predetermined view assist brightness so that the brightness is higher than the user-set brightness. As a result, when the HP moving image is reproduced with the view assist ON, even if the user-set brightness is set to normal (NORM), it is displayed at high brightness (HIGH). At this time, if the display of the icon or the like becomes too bright, the main body display 116 may be burned. Therefore, the display items such as icons are turned off so that the display brightness of display elements other than the LV image or the reproduced image such as icons on the main body display 116 is the same as the display brightness when the view assist setting is turned off. You may draw with a lower brightness than that of the time. That is, the drawing brightness may be darkened. After changing the display brightness in this way, the camera microcomputer 111 ends this processing.

  In S804, the camera microcomputer 111 changes the monitor gamma for the main body display 116 so that the brightness in the intermediate range is brighter than when the view assist setting is not turned on. Since the user-set brightness is already high brightness (highest brightness that can be set), it is not possible to display at a brightness higher than this (the brightness of the main body display 116 cannot be raised any more). Therefore, when the view assist setting is performed, the gamma characteristic at the time of display is changed so that the low-to-medium luminance portion as in the gradation characteristic 307 becomes brighter than when the view assist setting is not turned on. . The camera microcomputer 111 ends this processing when the gamma characteristic is changed in this way.

  Since the user-set brightness is determined in S802, S803 is executed each time the panel brightness setting process is executed while the user-set brightness is set to normal (NORM). Similarly, while the user-set brightness is set to high brightness (HIGH), S804 is executed every time the panel brightness setting process is executed. When the user-set brightness is changed from high brightness to normal during the view assist setting and S <b> 803 is executed, the camera microcomputer 111 restores the monitor gamma changed in S <b> 804. When the user-set brightness is changed from normal to high brightness and S804 is executed during the view assist setting, the camera microcomputer 111 changes the monitor gamma to the view assist characteristic.

  The brightness change by the view assist will be further described with reference to FIG. When the gamma characteristic of the image capturing apparatus is the gamma characteristic 303 in the HP mode, when the display is performed by the gamma characteristic 304 (first output gamma characteristic) of the main body display 116, the system total characteristic is a luminance linear gradation characteristic. It becomes 305. When the display is performed in this state, good reproducibility can be obtained over the entire subject luminance in the HP mode. However, as compared with the gradation characteristic 307 in the normal mode, the middle luminance portion tends to appear dark. When the view assist is turned on, the brightness of the main body display 116 is increased in S803, and the system total characteristic becomes like the gradation characteristic 311. As a result, the brightness of the middle-brightness portion can be increased, and the visibility is improved.

  Note that, for example, when the main body display 116 is a liquid crystal, the gradation characteristic 305 can be changed to the gradation characteristic 311 by multiplying the brightness of the backlight by x (greater than 1). When the main body display 116 is an organic EL, the gradation characteristic 301 can be obtained by multiplying the display gamma characteristic by x (greater than 1) (that is, increasing the luminance of the organic EL). When the brightness of the organic EL is increased, the brightness of all gradations is increased at the same rate. That is, the brightness of the brightest gradation also increases. Further, when the user-set brightness is high brightness (HIGH) when the view assist is turned on, by adopting the gamma property 312 as the gamma property at the time of displaying on the main body display 116, the system total property is obtained. Becomes a gradation characteristic 313. The gamma characteristic 312 (second output gamma characteristic) is a gamma characteristic in which the intermediate to low luminance side is displayed brighter than the gamma characteristic 304. As a result, the appearance of the middle portion is further improved. The brightness of the brightest gradation of the gradation characteristic 313 when the gamma characteristic 312 of the display device is applied is the same as that of the gradation characteristic 301, but the gradation in the low to middle portions is raised, and this portion looks good. improves.

<Guide display processing>
FIG. 9 is a flowchart showing details of the guide display processing executed in S707 and S717 of FIG. The guide display process is a case of reproducing an HP moving image, and when the external display 120 is connected to the external I / F 119, a guide that prompts the user to change the brightness of the external display 120 (increase the brightness). This is the process of displaying.

  In step S <b> 901, the camera microcomputer 111 determines whether the external display 120 is connected to the external I / F 119 and video is output to the external display 120. If the image is output to the external display 120, the process transitions to step S903, and if not, the process transitions to S902. In step S902, the camera microcomputer 111 turns off the guide-displayed flag held in the RAM 111b. This guide-displayed flag stores whether or not the guide display has already been performed so that once the guide display is performed, the guide display is not performed again until the external display 120 is disconnected. It is for storing.

  In step S903, the camera microcomputer 111 determines whether the button display setting is “ON”. That is, it is a determination as to whether or not the button icon 1111 is displayed. If the button display is "OFF", the process proceeds to S904, and if the button display is "ON", the process ends here. When the button display is "ON", the processing is terminated because the button icon is hidden by the guide display, and the user cannot instruct the operation such as the reproduction and stop of the moving image. This is to prevent

  In S904, the camera microcomputer 111 confirms whether or not the guide display completed flag held in the RAM 111b is off. If the guide-displayed flag is off, the process proceeds to S905, and if not, the process ends here. In step S <b> 905, the camera microcomputer 111 superimposes a guide display for prompting a change in the brightness of the external display device on the video signal output from the external I / F 119 and the video signal displayed on the main body display 116. Further, the camera microcomputer 111 turns on the guide-displayed flag held in the RAM 111b. The guide display is automatically erased when a predetermined time has elapsed since the display was started in S905.

  FIG. 11D shows a display example of the guide display on the main body display 116 and the external display 120 in S905. A guide display 1120 is displayed so as to be superimposed on the reproduced moving image 1110 which is an HP moving image and to perform reproduction with the external monitor set to a lighter setting. By looking at this guide display 1120, the user can recognize that it is desirable to change the brightness setting of the external display 120 and increase the brightness by himself. The camera microcomputer 111 displays the guide display 1120 when the HP moving image is started to be reproduced for the first time after the external display 120 is connected, or when the external display 120 is connected during the reproduction of the HP moving image. Start. Then, the camera microcomputer 111 hides the guide display 1120 a predetermined time after displaying the guide display 1120, and displays only the reproduced moving image 1110.

  The guide display 1120 relates only to the external display 120 connected to the external I / F 119. Therefore, the guide display 1120 may be controlled to be displayed only on the video signal output from the external I / F 119 without displaying it on the main body display 116. Further, it is possible to set permission / non-permission of superimposing a display item such as a character display on an image output from the external I / F 119. Then, even if the superimposition is set to be not permitted, the control may be performed so that the superimposition is performed only for this guide display (the guide display is superposed on the HP moving image and output). By doing so, the user watches the video while the brightness setting of the external display device is not appropriate (the brightness setting in which the low-to-medium brightness part of the gradation characteristics of the HP video looks darker than that normally captured with gamma). It is possible to reduce the possibility of doing.

  Although the guide display process of FIG. 9 described above is performed in S707 of FIG. 7 (that is, at the start of playback of each moving image) and S717 (that is, after switching the button display), the example is not limited to this. Not a thing. It may be performed at the timing when it is detected that the external display 120 is connected to the external I / F 119. That is, when it is detected that the external display 120 is connected to the external I / F 119 during the reproduction of the moving image, the camera microcomputer 111 determines whether or not the moving image currently being reproduced is the HP moving image. . Then, in the case of the HP moving image, a guide display for prompting a change in the brightness of the external display device is output from the external I / F 119 to the external display 120. Further, when a plurality of moving images are continuously played back, if a plurality of moving images to be played back include an HP moving image, a guide display for prompting a change in the brightness of the external display device before the first moving image is displayed on the external I. You may output from / F119 (it superimposes on a moving image and outputs). For example, when there is an instruction to continuously play N moving pictures from the 1st to the Nth based on the playlist, the camera microcomputer 111 causes at least one HP moving picture among the N moving pictures. It is determined whether or not is included. Then, if at least one HP moving image is included, the guide display process of FIG. 9 is performed at the start of reproduction of the first moving image even if the first moving image is not the HP moving image. Then, when the external output is being performed, the external I / F 119 outputs a guide display prompting to change the brightness of the external display device. Alternatively, the time until the playback of the HP video included in the video list is calculated, not when the first video is played, and the guide is displayed when the time is less than the predetermined time. Good. That is, when the camera microcomputer 111 continuously reproduces a plurality of moving images and outputs them from the external I / F 119, the time until the reproduction of the HP moving image is started even when the normal moving image is being reproduced. When the predetermined time is reached, the guide display is output from the external I / F 119.

  Further, the guide display 1120 may be displayed not only during playback of a moving image but also when a thumbnail or file name indicating an HP moving image is displayed on a screen for displaying a list of moving images. Further, in this case, not only the guide display is performed when the thumbnail or the file name indicating the HP moving image is simply displayed, but also the display of the selection cursor or the like is superimposed on the thumbnail or the file name indicating the HP moving image, the icon 1109, or the like. The guide display may be executed from time to time. That is, when the camera microcomputer 111 outputs a list screen of a plurality of images including a normal image and an HP moving image, information specifying the HP moving image or a display item (icon 1109) indicating the HP moving image is displayed. Outputs a guide when selected. The information specifying the HP moving image is a thumbnail, a file name, or the like.

  Further, in the example of FIG. 9, the example in which the guide display is executed when the button display is not performed (S902 No) has been described, but the guide display may be performed even when the button display is performed. Further, the information of the brightness setting set on the external display 120 is acquired from the external I / F 119, and the guide display is not performed when the brightness setting of the external display 120 is brighter than a predetermined set value. Is also good.

<Screen processing during stop>
FIG. 10 is a flow chart showing the details of the in-stop screen process executed in S714 of FIG. The stopped screen process is a process executed when the reproduction of the moving image is stopped from the state where the moving image is being reproduced in the reproduction mode process.

  In step S1001, the camera microcomputer 111 displays a stop screen with buttons on the main body display 116. That is, regardless of whether the button display setting during video reproduction is “ON” or “OFF”, when stopped, the button icon is initially displayed. FIG. 11E shows a display example at this time. The camera microcomputer 111 displays the button icon group 1131 by superimposing it on the stopped moving image 1130. At this time, when the stopped moving image is the HP moving image, the camera microcomputer 111 also displays the HP icon 1109.

  In step S1002, the camera microcomputer 111 determines whether the user has performed a scene advance operation (operation to select the next moving image) by operating the operation switch group 208 or touching a button icon. If it is determined that the scene advance operation has been performed, the process proceeds to S1003, and if not, the process proceeds to S1009. In step S1003, the camera microcomputer 111 reads the next moving image scene from the magnetic tape 115 / DVD 117 / memory card 118, performs decoding processing, and analyzes the metadata (attribute information) of the moving image scene.

  In S1004, the camera microcomputer 111 determines whether the next moving image scene is an HP moving image from the metadata analyzed in S1003. That is, it is determined whether the HP information is added to the attribute information of the moving image of the next scene. If it is determined that the moving image is an HP moving image, the process proceeds to S1005, and if not, the process proceeds to S1007.

  In step S1005, the camera microcomputer 111 performs the panel brightness setting process described above with reference to FIG. In S1006, the camera microcomputer 111 performs the guide display process described above with reference to FIG. In step S1007, the camera microcomputer 111 reads the user-set brightness recorded in the RAM 111b or the ROM 111a, and sets the brightness of the main body display 116 as the read user-set brightness. At this time, when the user-set brightness is normal (NORM), the moving image of the previous scene is the HP moving image, and the view assist function is on, the main unit display is displayed in response to the transition to the next normal moving image. The brightness of 116 will be changed and automatically lowered. In step S1008, the camera microcomputer 111 displays the frame of the moving image of the next scene decoded in step S1003 on the main body display 116 as a stop screen with button display.

  In step S1009, the camera microcomputer 111 determines whether the user has performed a playback instruction operation of the displayed moving image by operating the operation switch group 208 or a touch operation. If it is determined that the user has performed the reproduction instruction operation, the process proceeds to S704 in FIG. 7, and the camera microcomputer 111 starts reproduction of the moving image selected by the scene advance operation. If the reproduction instruction operation has not been performed, the process proceeds to S1010.

  In step S1010, the camera microcomputer 111 determines whether the user has performed an operation to open a menu by operating the operation switch group 208 or a touch operation. If it is determined that the user has performed the operation of opening the menu, the process proceeds to S1011; otherwise, the process proceeds to S1021.

  In step S1011, the camera microcomputer 111 reads the user-set brightness set in the menu from the RAM 111b or the ROM 111a, and adjusts the brightness of the main body display 116 so that the read user-set brightness is obtained. Further, the camera microcomputer 111 displays the top layer of the menu (top menu) on the main body display 116.

  In step S1012, the camera microcomputer 111 determines whether the user has selected a brightness setting menu item from a plurality of menu items included in the menu screen by operating or touching the operation switch group 208. The brightness setting menu is a menu for setting the brightness (user-set brightness) of the main body display 116, and a moving image is also displayed in a pause state while the brightness setting menu is displayed. If it is determined that the brightness setting menu is selected, the process transitions to S1013, and if not, the process transitions to S1019.

  In step S <b> 1013, the camera microcomputer 111 determines whether it is an HP moving image (whether or not HP information is added) based on the attribute information of the temporarily stopped moving image. If it is determined to be an HP moving image, the process proceeds to S1014, and if not, the process proceeds to S1015. In step S1014, the camera microcomputer 111 performs the panel brightness setting process described in FIG.

  In S1015, the camera microcomputer 111 displays the brightness setting screen on the main body display 116. The brightness setting screen is the same screen as that described with reference to FIG. However, the image displayed in the background is not the LV image but the stopped video of the reproduced moving image displayed immediately before. In step S1016, the camera microcomputer 111 determines whether the user has changed the brightness setting by operating the operation switch group 208 or a touch operation (whether a brightness setting option different from the set user setting brightness has been selected). . This is the same as the display example of FIG. 6D and the processing illustrated in S519 of FIG. If it is determined that the brightness setting has been changed, the process proceeds to S1017, and if it is determined that the brightness setting has not been changed, the process proceeds to S1018.

  In S1017, the camera microcomputer 111 stores the set brightness as the user-set brightness in the ROM 111a, and changes the brightness of the main body display 116 so that the brightness becomes the set brightness. At this time, since the video in which the reproduced moving image is stopped is displayed in the background on the brightness setting screen, the user can set the desired brightness while checking the appearance of the video. Note that the panel brightness setting process of S1014 is not performed again when the brightness is changed. This is an HP moving image, and when the view assist function is turned on, if the display is high brightness (HIGH) regardless of the brightness set by the user, even if the brightness is changed to normal brightness (NORM), the panel is displayed. This is because the display brightness does not decrease due to the brightness setting process. As described above, unless the brightness is reduced in accordance with the change to the normal brightness (NORM), it is not possible to feed back to the user that the brightness has been changed.

  However, if the displayed image is an HP moving image and normal (NORM) is changed to high brightness (HIGH), the panel brightness setting process of S1014 may be redone. In this way, when the view assist is turned on in the HP moving image, the applied display gamma (monitor gamma) is changed, so that the HP moving image looks good. Moreover, since the display state changes according to the change in the user-set brightness, it is possible to let the user recognize that the setting has been changed.

  In step S1018, the camera microcomputer 111 determines whether the user has operated the operation switch group 208 or a touch operation to exit the brightness setting screen. If it is determined that the operation for exiting the setting screen is performed, the process proceeds to S1011; otherwise, the process proceeds to S1016.

  In step S1019, the camera microcomputer 111 determines whether the user has performed an operation to exit the menu screen by operating the operation switch group 208 or a touch operation. If it is determined that the operation for exiting the menu screen is performed, the process proceeds to S1001, and if not, the process proceeds to S1020. In S1020, the camera microcomputer 111 performs other menu processing according to the selected other menu item.

  In step S1021, the camera microcomputer 111 determines whether the user has instructed to switch the button display by operating the operation switch group 208 or a touch operation. If it is determined that switching of the button display is instructed, the process proceeds to S1022, and if not, the process proceeds to S1024.

  In S1022, the camera microcomputer 111 switches the button display “ON” / “OFF”. When the button display is switched from “ON” to “OFF”, the button icon group 1131 displayed as shown in FIG. 11E is displayed. At this time, if the image being displayed is an HP moving image, the HP icon 1109 is also hidden. On the other hand, when the button display is switched from “OFF” to “ON”, the button icon group 1131 is displayed as shown in FIG. 11E from the state where the button icon group 1131 is not displayed. If the image being displayed at this time is an HP moving image, the HP icon 1109 is also displayed. In S1023, the camera microcomputer 111 performs the guide display processing shown in FIG.

  In step S1024, the camera microcomputer 111 determines whether the user has given an editing operation instruction by operating the operation switch group 208 or by touching. If it is determined that the editing operation is instructed, the process proceeds to S1025, and if not, the process proceeds to S1026. In S1025, the camera microcomputer 111 executes edit processing (which will be described later with reference to the flowchart of FIG. 12).

  In S1026, the camera microcomputer 111 determines whether the user has operated the mode dial 207 to perform a mode switching operation. If it is determined that the mode switching operation has been performed, the process proceeds to S1027, and if not, the process proceeds to S1002. In step S1027, the camera microcomputer 111 detects the position of the mode dial 207 operated by the user, and determines whether the detected position is the camera mode position. If it is determined that the position is in the camera mode, the process proceeds to S1028, and the camera microcomputer 111 executes the camera mode process. When the position of the mode dial 207 is not the position of the camera mode (when it is the position of power OFF), the power OFF process is performed and the process ends. The camera mode process executed in S1028 is the process described in the flowchart of FIG.

<Editing process>
FIG. 12 is a flowchart showing details of the editing process executed in S1025 of FIG. This editing process is executed when an editing instruction is issued from the state where the moving image is stopped and displayed in the reproduction mode process (that is, the state where the moving image to be edited is designated). As described above, the image (or the video) is provided with the information indicating that the image has been captured in the HP mode as the specific attribute information regarding the gradation characteristic at the time of capturing. In the following, if the image before editing is provided with the specific attribute information indicating that the image was photographed in the HP mode described above, the image after editing is copied as the editing process in which the specific attribute information is added, Trimming is illustrated. In addition, transcoding is exemplified as an editing process in which specific attribute information is not added to an edited image even if characteristic information is added to the image before editing.

  In S1201, the camera microcomputer 111 displays the main body display 116 at the user-set brightness recorded in the RAM 111b or the ROM 111a. In step S1202, the camera microcomputer 111 displays the edit selection list screen on the main body display 116. FIG. 13A shows a display example of the edit selection list screen. The edit selection list screen is a screen that displays a plurality of choices as to which edit is to be performed on the video to be edited (the specified video) that was displayed immediately before. In the present embodiment, as options, four editing operation options of deletion, trimming, transcode (MP4 conversion, that is, format conversion), and copy are displayed. Each option can be selected by touching, or can be selected by using the direction key and the enter button included in the operation switch group 208.

  In step S1203, the camera microcomputer 111 determines whether or not the user has selected a copy option by operating the operation switch group 208 or a touch operation. If it is determined that the copy option is selected, the process transitions to S1208, and if not, the process transitions to S1204. In step S1204, the camera microcomputer 111 determines whether the user has selected a transcode option by operating the operation switch group 208 or a touch operation. If it is determined that the transcode option is selected, the process proceeds to S1213, and if not, the process proceeds to S1205.

  In step S1205, the camera microcomputer 111 determines whether the user has selected a trimming option by operating the operation switch group 208 or a touch operation. If it is determined that the trimming option is selected, the process transitions to S1221, and if not, the process transitions to 1106. In step S1206, the camera microcomputer 111 determines whether the user has selected an erasing option by operating or touching the operation switch group 208. If it is determined that the delete option is selected, the process proceeds to S1229, and if not, the process proceeds to S1207.

  In step S1207, the camera microcomputer 111 determines whether the user has performed an operation to close the edit selection list screen by operating the operation switch group 208 or a touch operation. If it is determined that the operation of closing the edit selection list screen has been performed, the camera microcomputer 111 closes the edit selection list screen, ends the editing process, and shifts the process to S1026 in FIG. If it is determined that the operation of closing the edit selection list screen has not been performed, the process proceeds to S1203.

  In step S1208, the camera microcomputer 111 displays a copy execution confirmation screen on the main body display 116. This copy execution confirmation screen is displayed with the brightness for the HP moving image instead of the user-set brightness when the HP moving image and the view assist function are turned on by the processes of S1208a and S1208b. In S1208a, the camera microcomputer 111 analyzes the attribute information of the displayed moving image and determines whether or not HP information is added. If it is determined that the HP information is added, the process transitions to S1208b, and if not, the process transitions to S1224. In S1208b, the camera microcomputer 111 performs a panel brightness setting process (FIG. 8).

  In step S1209, the camera microcomputer 111 determines whether or not copy execution is selected on the copy execution confirmation screen by the user operating or touching the operation switch group 208. If it is determined that the copy execution is selected, the process proceeds to S1211, and if not, the process proceeds to S1210. In S1210, the camera microcomputer 111 determines whether or not the user has performed a copy stop operation by operating the operation switch group 208 or a touch operation. If it is determined that the copy cancel operation has been performed, the process proceeds to S1235, and if not, the process proceeds to S1209.

  In S1211, the camera microcomputer 111 displays the copy execution screen on the main body display 116. In step S1212, the camera microcomputer 111 executes a copy process. In the copying process, the camera microcomputer 111 first reads the data (moving image file) of the moving image to be edited (copying target) from one of the magnetic tape 115 / DVD 117 / memory card 118. Then, the camera microcomputer 111 saves the same moving image as the read moving image as a separate file in any one of the magnetic tape 115 / DVD 117 / memory card 118. The same attribute information as the moving image of the copy source is added to the moving image file generated by the copy process (the attribute information is also copied). That is, when a moving image with HP information is copied, the HP information is also added to a newly generated moving image file. When the copy process is completed, the process transitions to S1235.

  In S1213, the camera microcomputer 111 displays a format selection screen for selecting the converted format on the main body display 116. The format is the resolution and bit rate of the moving image data, and for example, “1920 × 1080, 24 Mbps”, “1920 × 1080, 17 Mbps”, “1280 × 720, 4 Mbps” and the like are displayed as options. In step S1214, the camera microcomputer 111 determines whether the user has selected one of the format options by operating the operation switch group 208 or touching the operation switch group 208. If it is determined that the format is selected, the process proceeds to S1216, and if not, the process proceeds to S1215. In step S <b> 1215, the camera microcomputer 111 determines whether the user has performed an operation to instruct to stop transcoding by operating the operation switch group 208 or a touch operation (whether the cancel button has been pressed). If it is determined that the operation for instructing to stop transcoding is performed, the process proceeds to S1235, and if not, the process proceeds to S1214.

  In step S1216, the camera microcomputer 111 displays a transcode execution confirmation screen (transcode edit screen) on the main body display 116. FIG. 13B shows a display example of the transcode execution confirmation screen. On the transcode execution confirmation screen, a selection of whether to execute (START) or cancel the transcode is displayed together with the stopped video of the moving image to be edited. Since the panel brightness setting process (FIG. 8) is not performed when displaying this screen, the moving image to be edited is displayed with the user-set brightness regardless of whether it is an HP moving image. This is because even if the moving image to be edited is an HP moving image, the HP information is not carried over to the converted moving image generated by transcoding (HP information is not added). That is, even if the moving image before conversion is an HP moving image, HP information is not added to the moving image after conversion, so that the converted moving image is displayed at the user-set brightness even when the view assist function is turned on. Therefore, in order to enable the camera microcomputer 111 to confirm in advance how the converted video will be displayed, the video to be edited is the HP video and the view assist function is turned on in the transcode execution confirmation screen. Even if there is, the display is performed with the brightness set by the user.

  In step S <b> 1217, the camera microcomputer 111 determines whether the user has performed an operation for instructing transcode execution by operating the operation switch group 208 or a touch operation. If it is determined that the transcode execution is instructed, the process proceeds to S1219, and if not, the process proceeds to S1218. In S1218, similarly to S1215, it is determined whether or not an operation for instructing to stop transcoding has been performed (whether or not the cancel button has been pressed). If it is determined that an operation for instructing to stop transcoding is performed, the process proceeds to S1235, and if not, the process proceeds to S1217.

  In S1219, the camera microcomputer 111 reads the moving image to be edited from any of the magnetic tape 115 / DVD117 / memory card 118 and decodes it. Then, on the transcode execution screen, reproduction of the read moving image is started. In step S1220, the camera microcomputer 111 reads the format information selected in step S1214 from the RAM 111b, and performs transcoding processing of the moving image to be edited according to the read format information. It is also possible to combine a plurality of moving images in the transcoding process. Therefore, when the HP moving image and the normal moving image are combined, inconsistency of attribute information occurs. Therefore, in the transcoding process, the HP information of the moving image as the conversion source is not inherited and discarded.

  In S1221, the camera microcomputer 111 displays a trimming execution screen on the main body display 116. FIG. 13C shows a display example of the trimming execution screen (editing screen, confirmation screen). On the trimming execution screen, the moving image to be edited is displayed in a stopped state, and various operation display items for designating the trimming position are displayed. This trimming execution screen is displayed with the brightness for the HP moving image instead of the user-set brightness when the HP moving image and the view assist function are turned on by the processing of S1222 and S1223. In S1222, the camera microcomputer 111 analyzes the attribute information of the displayed moving image and determines whether or not the HP information is added. If it is determined that the HP information is added, the process transitions to S1223, and if not, the process transitions to S1224. In S1223, the camera microcomputer 111 performs a panel brightness setting process (FIG. 8).

  In S1224, the camera microcomputer 111 determines whether the user has performed an operation of changing the trimming position by operating the operation switch group 208 or a touch operation. If it is determined that the operation of changing the trimming position has been performed, the process transitions to S1225, and if not, the process transitions to S1228. In S1225, the camera microcomputer 111 updates the trimming position information managed in the RAM 111b using the position information selected by the user in S1224.

  In S1226, the camera microcomputer 111 determines whether or not the user has selected execution of trimming by an operation on the operation switch group 208 or a touch operation. If it is determined that the trimming execution is selected, the process proceeds to S1228, and if not, the process proceeds to S1227. In step S <b> 1227, the camera microcomputer 111 determines whether the user has selected trimming stop by operating the operation switch group 208 or a touch operation. If it is determined that the trimming stop is selected, the process proceeds to S1235, and if not, the process proceeds to S1224.

  In S1228, the camera microcomputer 111 reads the trimming position information from the RAM 111b, and divides the moving image to be edited read from any one of the magnetic tape 115 / DVD 117 / memory card 118 based on the trimming position information. The divided moving image is stored as a moving image file in any of the magnetic tape 115 / DVD 117 / memory card 118. The attribute information of the moving image file generated by the trimming process is controlled to be the same as the attribute information of the moving image that is the editing source. That is, when the moving image to which the HP information is added is trimmed, the same HP information is added to the generated moving image.

  In step S <b> 1229, the camera microcomputer 111 displays the deletion confirmation screen of the moving image to be edited on the main body display 116. On the erasure confirmation screen, a button icon for instructing execution of erasure, a button icon for instructing cancellation, and a stopped image of the moving image to be edited are displayed. The processing of S1230 and S1231 is the same as the processing of S1222 and S1223.

  In S1232, the camera microcomputer 111 determines whether or not the user has selected a button icon for instructing execution of deletion by operating the operation switch group 208 or a touch operation. If deletion execution is selected, the process proceeds to S1234, and if not, the process proceeds to S1233. In S1233, the camera microcomputer 111 determines whether or not the user has selected a button icon for canceling deletion (cancel) by operating the operation switch group 208 or a touch operation. If the cancellation of erasure is selected, the process proceeds to S1235, and if not, the process proceeds to S1232.

  In S1234, the camera microcomputer 111 erases the moving image (moving image file) to be edited, which is stored in any of the magnetic tape 115 / DVD 117 / memory card 118. When the erasing is completed, the process moves to S1235.

  In step S1235, the camera microcomputer 111 reads the user-set brightness recorded in the RAM 111b or the ROM 111a, and changes the brightness of the main body display 116 according to the read user-set brightness. In S1236, the camera microcomputer 111 again displays the screen data of the edit selection list screen on the main body display 116. After that, the process returns to S1203, and the above-described process is repeated.

  The various controls described as being performed by the camera microcomputer 111 may be performed by one piece of hardware, or a plurality of pieces of hardware may share the processing to control the entire apparatus. .

  Although the present invention has been described in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and various embodiments within the scope not departing from the gist of the present invention are also included in the present invention. included. Furthermore, each of the above-described embodiments is merely an example of the present invention, and the respective embodiments can be combined as appropriate.

  Further, in the above-described embodiment, the case where the present invention is applied to the imaging device 100 has been described as an example, but the present invention is not limited to this example. Like the gamma curve at the time of shooting applied in the high brightness priority mode (HP mode) of the above-described embodiment, shooting is performed by applying a gamma curve having a lower gradation in the low brightness to middle brightness range than a normal gamma curve Any display control device capable of displaying the displayed image can be applied. That is, the present invention relates to control at the time of display, and does not need to have a configuration related to imaging. Therefore, the present invention is applicable to digital cameras, personal computers, PDAs, mobile phone terminals and portable image viewers, digital photo frames, music players, game consoles, electronic book readers, and the like. It goes without saying that the digital camera includes a digital single-lens reflex camera, a digital still camera, and a digital video camera.

(Other embodiments)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program. It can also be realized by the processing. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

Claims (19)

An image of the first type generated with the first gradation characteristic and a second type generated with the second gradation characteristic having higher gradation on the higher luminance side than the first gradation characteristic. Display control means capable of displaying the image of
Setting brightness of the display means, in accordance with a user operation, a setting means for setting one of a plurality of stages that can be set,
When the set brightness of the display means set by the setting means is the first brightness which is not the maximum step among the plurality of steps,
When displaying the image of the first type on the display means, the brightness of the display means is the first brightness,
When displaying an image of said second type on said display means, the brightness of the display unit, the first brighter than the luminance, brighter than the luminance of the brightest gray level of the first luminance A display control device comprising: a control unit for controlling the second brightness.   The image of the first type is an image captured with the first gradation characteristic, and the image of the second type is an image generated with the second gradation characteristic. The display control device according to claim 1.   The control unit switches from a state in which the image of the second type is displayed on the display unit with the brightness of the display unit as the second brightness, to a screen for displaying a video that is not a captured image. According to this, the display control device according to claim 2, wherein the brightness of the display means is controlled to be the first brightness.   When the brightness setting of the display unit is a brightness setting higher than a predetermined value, the control unit determines the output gamma characteristic of the image of the second type to the display unit by the image of the first type. 4. The control according to claim 1, wherein the second output gamma characteristic is displayed so that the lower luminance side is displayed brighter than the first output gamma characteristic when outputting to the display means. The display control device according to item.   The display control device according to claim 4, wherein the predetermined value is the second brightness. The control means controls the brightness of the display means to be the second brightness by increasing the brightness of the backlight of the display means as compared with the case of the first brightness. Item 6. The display control device according to any one of items 1 to 5 . Further comprising setting means capable of setting whether to turn on the visibility assist function when displaying the second type image,
When the assist function is not set to ON, the control unit sets the brightness of the display unit to the first brightness even when displaying the image of the second type on the display unit. The display control device according to claim 1, wherein the display control device is controlled so as not to be changed from the above. Imaging means,
A plurality of modes in which the gradation characteristics used when the image is captured by the image capturing unit are different from each other, and a first mode in which the first gradation characteristic is used and a second mode in which the second gradation characteristic is used. Further comprising a mode setting means capable of setting any of a plurality of modes including at least
When displaying the live view image captured in the second mode on the display unit, the control unit determines the brightness of the display unit by the live view image captured in the first mode. The display control device according to any one of claims 1 to 7, wherein the display control device is controlled so as to have a brightness that is brighter than a brightness when displayed on the display means. Acquisition means for acquiring the recorded image and the attribute information of the image,
Based on the attribute information acquired by the acquisition unit, the control unit controls the brightness of the display unit when reproducing the image to which the attribute information indicating that the image is the second type is added. The display control device according to claim 1, wherein the display control device is controlled to have a second brightness.   Based on the attribute information acquired by the acquisition unit, the control unit reproduces the image to which the attribute information indicating that the image is the second type is added, together with the image, the second type. 10. The display control device according to claim 9, wherein the display control device controls to display a display item indicating that the image is.   When performing a multi-display in which a plurality of images are displayed on one screen, the control unit controls the brightness of the display unit by the first display even if the plurality of images include the image of the second type. 11. The display control device according to claim 1, wherein the display control device is controlled so as not to change from the luminance of.   The control means switches from a state in which the image of the second type is displayed on the display means with the brightness of the display means as the second brightness to a menu screen for setting the display means. The display control device according to any one of claims 1 to 10, wherein the brightness of the display means is controlled so as to be the first brightness.   When displaying the setting screen displayed together with the image of the second type under the hierarchy of the menu screen, the control unit changes the brightness of the display unit from the first brightness to the second brightness. 13. The display control device according to claim 12, wherein the display control device controls to change the brightness.   When the control unit changes the first brightness to the second brightness and displays the second type image on the display unit, the control unit draws a display item displayed together with the second type image. The display control device according to any one of claims 1 to 13, wherein the display control device controls the display brightness to be dark.   The first gradation characteristic and the second gradation characteristic are gradation characteristics when the brightness of the subject is converted into gradation values, and the second gradation characteristic is the first gradation characteristic. 15. The gradation characteristic is such that the gradation characteristic from the intermediate luminance to the low luminance side of the subject is lower than the characteristic, and the number of gradation values assigned to the high luminance side is larger than that of the characteristic. The display control device according to item 1. 16. The display control device according to claim 1, wherein the second brightness is brighter than the corresponding gradation in the case of the first brightness in all gradations. An image of the first type generated with the first gradation characteristic and a second type generated with the second gradation characteristic having higher gradation on the higher luminance side than the first gradation characteristic. And a display control step capable of displaying the image of
A setting step of setting the set brightness of the display means to one of a plurality of stages that can be set according to a user operation,
When the set brightness of the display means set in the setting step is the first brightness that is not the maximum step among the plurality of steps,
When displaying the image of the first type on the display means, the brightness of the display means is the first brightness,
When displaying an image of said second type on said display means, the brightness of the display means, the brighter than the first brightness, brightness than the luminance of the brightest gray level of the first luminance And a control step of controlling so as to obtain a second brightness. A program for causing a computer to function as each unit of the display control device according to any one of claims 1 to 16 . Computer, claims 1 to 1 6 stores a computer-readable storage medium storing a program to function as each unit of the display control device according to any one of.

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