JP2015045979A - Image processing device, image processing method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processing device, an image processing method, and a program that are capable of easily printing a subject in an actual size.SOLUTION: An image processing device comprises: specifying means that specifies a reference part on an image; input means that inputs a measured value of the reference part specified by the specifying means; and determination means that determines a magnification of the image on the basis of the size of the reference part specified by the specifying means and the measured value input by the input means.

Description

  The present invention relates to an image processing apparatus, an image processing method, and a program for performing actual size printing.

  When a subject photographed by an imaging device such as a digital camera is printed by a printing device, the subject is printed based on a preset enlargement / reduction ratio. Therefore, the subject is often not printed at the actual size. When the photographed subject is to be printed at the actual size, it is necessary to adjust the enlargement / reduction ratio of the image.

  Therefore, a reference object representing the reference length is photographed together with the subject, and the subject is enlarged and reduced so that the reference length represented by the reference object matches the actual length associated with the reference length. A method of printing in a size has been proposed (see Patent Document 1).

  In this case, it is known that the reference object photographed together with the subject is removed at the same time as printing.

JP 2009-135578 A

  However, the conventional example has a problem that the work of preparing a reference object whose dimensions are known in advance is complicated. Moreover, there is a problem that the work of photographing a reference object whose dimensions are known in advance together with the subject is complicated. Furthermore, if the subject cannot be photographed together with the reference object, after photographing the subject, the subject cannot be printed in the actual size, and there is a subject that can be photographed for printing in the actual size. There is a problem of being limited.

  Further, in the above conventional example, when there is no reference object whose dimensions are known in advance, it is necessary for the user to estimate the enlargement / reduction ratio and manually edit the image based on the estimated enlargement / reduction ratio. . In this case, there is a problem that it takes a long time and a lot of labor to calculate the enlargement / reduction ratio by trial and error by estimation.

  An object of the present invention is to provide an image processing apparatus, an image processing method, and a program capable of easily printing a subject in an actual size.

  The image processing apparatus of the present invention includes a designation unit that designates a reference part on an image, an input unit that inputs an actual measurement value of the reference part designated by the designation unit, and a size of the reference part designated by the designation unit And determining means for determining the magnification of the image based on the actual measurement value input by the input means.

  According to the present invention, it is possible to easily print a subject at an actual size. For example, an object photographed without using a reference object whose dimensions are known in advance can be printed at the actual size, and the time required to complete the operation of printing the object at the actual size can be shortened. There is an effect.

1 is a system configuration diagram of an image editing apparatus 100 according to Embodiment 1. FIG. 2 is a block diagram showing an internal structure of a host device 101. FIG. FIG. 10 is a diagram of a screen when an image editing application 102 is activated. It is a flowchart which shows operation | movement of an image editing program. It is a figure which shows the screen displayed when designation | designated of two reference points is received. It is a figure which shows the screen displayed when accepting the measurement length between reference | standard points. 6 is a system configuration diagram of an image editing apparatus 700 according to Embodiment 2. FIG. 10 is a flowchart for performing actual size printing using the image editing apparatus 700. It is a flowchart which shows the edit operation | movement of the intermediate file implemented by S804. 3 is a diagram illustrating a user interface of the image editing apparatus 700. FIG.

  The mode for carrying out the invention is as follows.

Embodiment 1

  FIG. 1 is a system configuration diagram of an image editing apparatus 100 that is an example of an image processing apparatus according to Embodiment 1 of the present invention.

  The image editing apparatus 100 includes a host device 101 and a printer 104. The host device 101 is not particularly limited as long as it can perform image editing. For example, the host device 101 includes a personal computer.

  The host device 101 has an image editing application 102 and a printer driver 103. The image editing application 102 is an application for displaying, editing, and printing image data. The printer driver 103 is a printer driver that generates data (print data) in a format printable by the printer 104 based on data received from the image editing application 102.

  FIG. 2 is a block diagram showing the internal structure of the host device 101. For example, the host device 101 has the same configuration as a general PC. In the present embodiment, the host device 101 includes a CPU 201, a RAM 202, an input device 203, a display device 204, and an auxiliary storage device 205, which are connected by an internal system bus.

  The CPU 201 comprehensively controls each component connected to the internal system bus, and controls the printer 104 by executing various programs stored in the auxiliary storage device 205 on the RAM 202 as a work memory. . The CPU 201 executes image editing described in the present embodiment according to a program.

  The input device 203 is a mouse, a keyboard, or the like, and is a device that executes various inputs from the user with respect to icons, menus, and other objects displayed on the display device 204 by the image editing application 102 and the printer driver 103. The input device 203 is used, for example, when the position of any two coordinates on the image is designated as a reference point, as will be described in detail later, and the measured length between the two designated reference points. Used to enter the length.

  The display device 204 is, for example, a CRT display or an LCD display.

  The auxiliary storage device 205 stores an OS, an image editing application 102 including an image editing program, which will be described later, a printer driver 103, image data created by a user, and the like, and is appropriately called from the CPU 201 and stored in the RAM 102. . The auxiliary storage device 205 is a hard disk, a magneto-optical disk, or the like.

  The host device 101 is connected to the printer 104 via an external bus, transmits various information such as print data and control commands from the host device 101 to the printer 104, and the paper size and the like between the printer 104 and the host device 101. Send and receive various information.

  The main part of this embodiment is included in the image editing application 102. Here, the image editing application 102 will be described with reference to FIGS.

  FIG. 3 is a diagram showing a screen displayed on the display device 204 when the image editing application 102 is activated.

  In the present embodiment, a case will be described in which an image (vertical 1600 dots × horizontal 1200 dots) shown in FIG. As illustrated in FIG. 3, when the image editing application 102 is activated, an editing screen of the image editing application is displayed on the display device 204. In the present embodiment, the image to be edited and the coordinates of the image are displayed on the editing screen.

  Here, the operation of the image editing program executed by the image editing application 102 will be described with reference to FIG. FIG. 4 is a flowchart showing the operation of the image editing program executed by the image editing application 102.

  This program is executed by a user instructing printing in actual size from a menu or the like not shown in FIG. 3 on the image editing application 102.

  First, in S401, an input of a reference point by a user operation is accepted. Specifically, it is a reference point whose actual size is known in advance, and designation by the user of two reference points on the image is accepted. That is, when the user designates two reference points on the image, designation of these two reference points is accepted.

  Here, the input of the reference point by the user will be described with reference to FIG. FIG. 5 is a diagram showing a reference point input acceptance screen. In other words, it is a diagram showing a screen that accepts designation of two reference points by the user.

  The reception screen shown in FIG. 5 includes controls 501/502 for displaying the coordinates of two reference points (reference point 1, reference point 2), a “next” button 503, and a “cancel” button 504. In the controls 501 and 502 of FIG. 5, the coordinates of the reference point designated by the user are displayed. In FIG. 5, the case where the reference point is designated by inputting the coordinates of each reference point has been described as an example, but the present invention is not limited to this. For example, as shown in FIG. 3, the user may specify by using the mouse of the input device 203 and clicking the cursor 301 at a desired position on the image. In addition, when designating the reference point, the reference point is not limited to that designated by the mouse, but may be designated by other pointing devices or various input devices such as a keyboard.

  Here, it is assumed that the user designates a point P1 (800, 200) and a point P2 (1000, 200) on the image as reference points. Subsequently, when the pressing of the “next” button 503 is accepted, the image editing program proceeds to the next step (S402). On the other hand, when the pressing of the “Cancel” button 504 is accepted, the image editing program ends the process.

  Returning to FIG. 4, in step S <b> 402, an input of an actually measured length between reference points by the user is received.

  Here, the input of the actually measured length by the user will be described with reference to FIG. FIG. 6 is a diagram illustrating a reception screen for inputting an actual measurement length between reference points.

  The reception screen shown in FIG. 6 includes a control 601 for inputting an actual measurement length between the reference point 1 and the reference point 2 designated in S401, a “return” button 604, a “next” button 602, and a “cancel” "Button 603. Here, it is assumed that 150 mm is input as the actually measured length between the points P1 and P2 of the subject.

  The operations when the “next” button 602 and the “cancel” button 603 are pressed are the same as those when the next button 503 and the cancel button 504 in FIG. When the user presses the “return” button 604, the process returns to S401, and the coordinates of the reference point can be designated again.

  In step S403, the image enlargement / reduction ratio is calculated in order to print the subject of the image in the actual size. That is, the enlargement / reduction ratio is calculated based on the input actual measurement length and the distance between the two reference points (distance when printed). The distance between two reference points (distance when printed) represents the size on the screen between the two reference points.

  The image enlargement / reduction ratio A is 15.4 mm based on the number of pixels [dot] between two reference points [2], the actually measured length [mm] between the two reference points, and the print resolution [dpi] of the printer. Therefore, it calculates according to the following calculation formula.

Image scaling ratio A = (actual length) / [(number of pixels) / (printing resolution) × 25.4]
Therefore, if the print resolution is 600 dpi, the actually measured length is 150 mm, and the number of pixels is 200 dots, the image scaling ratio A is the following value.

A = 150 / [200/600 × 25.4] = 17.7 times Next, in S404, the image is subjected to scaling processing based on the enlargement / reduction ratio calculated in S403. Specifically, the image size is scaled as follows.

Vertical: 1600 dots x 17.7 = 28320 dots
Horizontal: 1200 dots x 17.7 = 21240 dots
In step S405, the printer driver is instructed to print using the image data subjected to the scaling process. Thus, based on the enlargement / reduction ratio calculated in S403, the printer driver 103 controls the printer 104 to execute the printing process. At this time, a paper size that can accommodate the image subjected to the scaling process is designated in the printer driver.

  In the present embodiment, as described above, when a reference point is specified and an actual measurement length between the reference points is input, a photographed subject is printed in an actual size without using a reference object whose dimensions are known in advance. Therefore, it is possible to easily obtain a printed matter in which the subject on the image is enlarged and reduced to the actual size.

Embodiment 2

  FIG. 7 is a system configuration diagram of an image editing apparatus 700 according to the second embodiment of the present invention.

  The image editing device 700 includes a printer 707 and a host device 701 that is a host device.

  Since the image editing apparatus 700 has the same configuration as the block diagram showing the internal structure of the host apparatus 101 shown in FIG. 2, the description of the internal structure is omitted. As shown in FIG. 7, the host device 701 includes an application 702, a print processor 703, a spool folder 704, an image editing application 705, and a printer driver 706.

  In the host device 701, an application 702 is a type of application that can instruct printing of an image file to be printed in actual size and print a general image. The image editing application 705 is an application that acquires an intermediate file from the spool folder 704. The printer driver 706 generates print data and transmits it to the printer 707.

  FIG. 8 is a flowchart illustrating processing when performing actual size printing using the image editing apparatus 700. First, in step S <b> 801, the application 702 instructs to print an image file to be printed in actual size. Here, the application is not particularly limited as long as it can print a general image.

  When there is an instruction to print an image file, the process proceeds to the print processor 703 that operates in conjunction with the print instruction from the application. In step S <b> 802, the print processor 703 distributes intermediate file format image data generated by the OS when printing is performed to a spool folder.

  In step S <b> 803, the image editing application 705 acquires an intermediate file from the spool folder 704. In step S804, the image editing application 705 enlarges / reduces the intermediate file so that the subject of the image is printed in actual size. Finally, in step S805, the printer driver 706 performs print processing. Specifically, the printer driver 706 generates print data and transmits it to the printer.

  In this embodiment, the image editing application 705 enlarges / reduces the image data in the intermediate file format, so that the user can use any application when printing an image.

  Here, the contents (intermediate file editing operation) executed in S804 will be described in detail with reference to FIG. FIG. 9 is a flowchart showing the intermediate file editing operation performed in the operation of S804.

  Since S901 to S904 are basically the same as S401 to S404 of the first embodiment, description thereof will be omitted. The difference from the processing in the first embodiment is that the data to be edited is an intermediate file.

  In step S905, the size of the paper loaded in the printer 707 is acquired. When acquiring the paper size, the image editing application 705 may make an inquiry to the printer 707 or may make an inquiry via the printer driver 706.

  In step S906, it is determined whether the image data subjected to the enlargement / reduction processing in step S904 fits in the paper size acquired in step S905.

  If it is determined that the paper size fits, in step S908, the printer driver 706 is instructed to print, and the process ends.

  On the other hand, if it is determined that the print image of the subject to be printed in actual size does not fit in the acquired paper size, a print range is designated in S907. That is, if the print image of the subject to be printed in actual size does not fit in the paper size, the range to be printed in actual size can be designated.

  FIG. 10 is a diagram illustrating a screen displayed on a user interface such as a display device of the image editing apparatus 700 when a print range is designated.

  As shown in FIG. 10, when a print range is designated, an image editing application editing screen is displayed. In the present embodiment, the image to be edited and the coordinates of the image are displayed on the editing screen, and a frame for designating the print range can be displayed.

  In the present embodiment, as shown in FIG. 10, the print range is displayed on the image editing application 705 as a range corresponding to the paper size by a broken line frame such as 1001. Thus, the user can adjust the print range to an arbitrary position while viewing the screen shown in FIG. Note that the shape of the broken-line frame is not particularly limited.

  Returning to FIG. 9, when the user gives a print instruction from the menu or the like of the image editing application 705 after confirming the printing range on the screen of the image editing application 705, the printing instruction is given to the printer driver 706 in step S <b> 908 and the processing ends. To do.

  In this embodiment, the size of the paper loaded in the printer 707 is acquired, and the print range can be designated when the image size does not fit in the paper size. Thereby, even if the image size does not fit in the paper size, the subject in the image can be easily printed at the actual size.

  In the embodiment described above, two reference points are set. However, the reference portion serving as a reference for the scaling factor (enlargement / reduction ratio in the present embodiment) is not limited to this. For example, a reference line may be set on the image, or a reference area may be set. In this case, the user may input the actual measurement length of the reference line, the actual measurement area of the reference region, or the like as the actual measurement value.

  The contents described in the above embodiments can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed. In addition, the above processing is not limited to being executed by a single processor, but may be executed by a plurality of processors.

203 ... Input device,
301 ... Mouse cursor for designating reference point,
501: coordinates of reference point 1,
502 ... coordinates of reference point 2,
601: Measured length between reference points.

Claims (6)

A designation means for designating a reference portion on the image;
Input means for inputting an actual measurement value of the reference portion designated by the designation means;
Determining means for determining an image scaling factor based on the size of the reference portion specified by the specifying means and the actual measurement value input by the input means;
An image processing apparatus comprising: The reference part consists of two reference points,
The image processing apparatus according to claim 1, wherein the determination unit determines a scaling factor so that a distance between the two reference points matches the input actual measurement length.   The image processing apparatus according to claim 1, further comprising a control unit that causes the printing unit to print based on the scaling factor determined by the determination unit. Determination means for determining whether printing can be performed at a scaling ratio determined by the determination means;
A setting unit for setting a print range when the determination unit does not determine that printing is possible;
The image processing apparatus according to claim 1, further comprising: A designation step for designating a reference portion on the image;
An input step of inputting an actual measurement value of the reference portion specified in the specifying step;
A determining step of determining a scaling factor of the image based on the size of the reference portion specified in the specifying step and the actually measured value input in the input step;
An image processing method comprising:   A program for causing a computer to execute the image editing method according to claim 5.

Images