CN107360378A - A kind of exposal control method, mobile terminal and computer-readable storage medium - Google Patents
A kind of exposal control method, mobile terminal and computer-readable storage medium Download PDFInfo
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- CN107360378A CN107360378A CN201710607911.4A CN201710607911A CN107360378A CN 107360378 A CN107360378 A CN 107360378A CN 201710607911 A CN201710607911 A CN 201710607911A CN 107360378 A CN107360378 A CN 107360378A
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- preview image
- pixel
- display parameters
- exposure
- mobile terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
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Abstract
The embodiment of the invention discloses a kind of exposal control method, mobile terminal and computer-readable storage medium.The mobile terminal includes：Camera, it is configured to gather preview image；Memory, it is configured to store spectrum assignment program；Processor, it is configured to perform the spectrum assignment program to perform operations described below：Identify the display parameters of the preview image；The exposure parameter of each pixel in the preview image is determined based on the display parameters；When detecting image capture instruction, the exposure parameter control corresponding pixel points exposure based on each pixel, the output image data after the completion of each pixel exposure.The technical scheme of the embodiment of the present invention, improve the precision of IMAQ, improve the operating experience of user, especially meet photographed scene and meanwhile have concurrently incandescent and it is very dark in the case of can obtain the image of preferable effect.
Description
Technical field
The present invention relates to exposure technique, and in particular to a kind of exposal control method, mobile terminal and computer-readable storage medium.
Background technology
The imaging sensor of existing many mobile terminals (such as mobile phone) is mostly using line exposure mode or global exposure
Optical mode.The pattern that either exposure or interlacing expose line by line, typically after the exposure of a line, another row is exposed again,
A two field picture can be just exported after the completion of the exposure of all rows.This Exposure mode is not suitable for shooting the scene of mobile scenery,
In the short period of time, if the scenery of shooting is moved, be expert at and certain dislocation occurs in exposure process, then the figure exported
Fuzzy situation occurs in piece；On the other hand, this Exposure mode is not suitable for taking into account incandescent and very dark simultaneous feelings yet
Condition.Global exposure mode is under the control of global shutter, is passed through disposable spectrum assignment (i.e. all pixels point exposes simultaneously)
Mode export a two field picture.This Exposure mode can not also take into account incandescent and very dark simultaneous situation.
The content of the invention
To solve existing technical problem, the embodiment of the present invention provide a kind of exposal control method, mobile terminal and
Computer-readable storage medium.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
The embodiments of the invention provide a kind of mobile terminal, the mobile terminal includes：
Camera, it is configured to gather preview image；
Memory, it is configured to store spectrum assignment program；
Processor, it is configured to perform the spectrum assignment program to perform operations described below：Identify the aobvious of the preview image
Show parameter；The exposure parameter of each pixel in the preview image is determined based on the display parameters；Detect IMAQ
During instruction, the exposure parameter control corresponding pixel points exposure based on each pixel, exposed in each pixel
Into rear output image data.
In such scheme, the processor, it is configured to perform the spectrum assignment program to perform operations described below：Based on institute
The display parameters for stating each pixel in preview image determine the time for exposure of each pixel in the preview image.
In such scheme, the processor, it is additionally configured to perform the spectrum assignment program to perform operations described below：It is based on
The display parameters are determined in the preview image before the exposure parameter of each pixel, the display based on the preview image
Parameter judges whether the preview image meets preparatory condition；When the preview image meets preparatory condition, the shifting is controlled
Dynamic terminal is in point pixel exposure pattern.
In such scheme, the processor, it is configured to perform the spectrum assignment program to perform operations described below：Described
When mobile terminal is in point pixel exposure pattern, the exposure of each pixel in the preview image is determined based on the display parameters
Optical parameter.
In such scheme, the processor, it is configured to perform the spectrum assignment program to perform operations described below：Based on institute
State preview image display parameters judge the display parameters of first area in the preview image whether be more than first threshold and
Whether the display parameters of the second area in the preview image are less than Second Threshold；The first area is different from described second
Region；The first threshold is more than the Second Threshold；When the display parameters of the first area in the preview image are more than the
When the display parameters of one threshold value and the second area in the preview image are less than Second Threshold, judge that the preview image is expired
Sufficient preparatory condition.
The embodiment of the present invention additionally provides a kind of exposal control method, applied in mobile terminal；Methods described includes：
The preview image of collection is detected, identifies the display parameters of the preview image；
The exposure parameter of each pixel in the preview image is determined based on the display parameters；
When detecting image capture instruction, the exposure parameter control corresponding pixel points exposure based on each pixel,
The output image data after the completion of each pixel exposure.
In such scheme, the exposure ginseng that each pixel in the preview image is determined based on the display parameters
Number, including：
Display parameters based on each pixel in the preview image determine each pixel in the preview image
Time for exposure.
In such scheme, the exposure parameter that each pixel in the preview image is determined based on the display parameters
Before, methods described also includes：
Display parameters based on the preview image judge whether the preview image meets preparatory condition；
When the preview image meets preparatory condition, the mobile terminal is controlled to be in point pixel exposure pattern.
In such scheme, the exposure ginseng that each pixel in the preview image is determined based on the display parameters
Number, including：
When the mobile terminal is in point pixel exposure pattern, determined based on the display parameters in the preview image
The exposure parameter of each pixel.
In such scheme, the display parameters based on the preview image judge whether the preview image meets to preset
Condition, including：
Display parameters based on the preview image judge the first area in the preview image display parameters whether
Whether the display parameters more than the second area in first threshold and the preview image are less than Second Threshold；Firstth area
Domain is different from the second area；The first threshold is more than the Second Threshold；
When the display parameters of the first area in the preview image are more than the in first threshold and the preview image
When the display parameters in two regions are less than Second Threshold, judge that the preview image meets preparatory condition.
The embodiment of the present invention additionally provides a kind of computer-readable recording medium, is stored thereon with spectrum assignment program, institute
State the step of realizing the exposal control method described in the embodiment of the present invention when spectrum assignment program is executed by processor.
Exposal control method, mobile terminal and computer-readable storage medium provided in an embodiment of the present invention, the mobile terminal
Including：Camera, it is configured to gather preview image；Memory, it is configured to store spectrum assignment program；Processor, it is configured to hold
The spectrum assignment program go to perform operations described below：Identify the display parameters of the preview image；Based on the display parameters
Determine the exposure parameter of each pixel in the preview image；When detecting image capture instruction, based on each pixel
The exposure parameter control corresponding pixel points exposure of point, the output image data after the completion of each pixel exposure.Using this
The technical scheme of inventive embodiments, the independent exposure of each pixel is realized by the determination of the exposure parameter to each pixel
Control, greatly improves image taking effect, improves the precision of IMAQ, improve the operating experience of user, especially
Meet photographed scene and meanwhile have concurrently incandescent and it is very dark in the case of can obtain the image of preferable effect, it is also rich on the other hand
The rich scene of IMAQ.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for an optional mobile terminal for realizing each embodiment of the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the electrical structure block diagram of camera in Fig. 1；
Fig. 4 is a kind of schematic flow sheet of the exposal control method of the embodiment of the present invention；
Fig. 5 is another schematic flow sheet of the exposal control method of the embodiment of the present invention；
Fig. 6 is the composition structural representation of the mobile terminal of the embodiment of the present invention；
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as mobile phone, flat board
Computer, notebook computer, palm PC, PDA (Personal Digital Assistant, personal digital assistant), PMP
(Portable Media Player, portable media player), guider, wearable device, Intelligent bracelet, pedometer
Deng mobile terminal, and the fixed terminal such as digital TV, desktop computer.
It will be illustrated in subsequent descriptions by taking mobile terminal as an example, it will be appreciated by those skilled in the art that except special
Outside element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, its hardware architecture diagram for a kind of mobile terminal of each embodiment of the realization present invention, the shifting
Dynamic terminal 100 can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103rd, A/V (audio/video) input block 104, sensor 105, display unit 106, user input unit 107, interface unit
108th, the part such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not form the restriction to mobile terminal, and mobile terminal can be included than illustrating more or less parts,
Either combine some parts or different parts arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, the reception and transmission of signal, specifically, by base station
Downlink information receive after, handled to processor 110；In addition, up data are sent to base station.Generally, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrate
Frequency unit 101 can also be communicated by radio communication with network and other equipment.Above-mentioned radio communication can use any communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, WCDMA), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, FDD Long Term Evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex Long Term Evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is receiving or
It is sound that the voice data stored in memory 109, which is converted into audio signal and exported,.Moreover, audio output unit 103
The audio output related to the specific function that mobile terminal 100 performs can also be provided (for example, call signal receives sound, disappeared
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input blocks 104 are used to receive audio or video signal.A/V input blocks 104 can include GPU
(Graphics Processing Unit, graphics processor) 1041 and microphone 1042, graphics processor 1041 is in video
The static images or the picture number of video obtained in acquisition mode or image capture mode by image capture apparatus (such as camera)
According to being handled.Picture frame after processing may be displayed on display unit 106.Image after the processing of graphics processor 1041
Frame can be stored in memory 109 (or other storage mediums) or be sent out via radio frequency unit 101 or WiFi module 102
Send.Microphone 1042 can be in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone
1042 receive sound (voice data), and can be voice data by such acoustic processing.Audio (voice) after processing
Data can be converted to the form that mobile communication base station can be sent to via radio frequency unit 101 in the case of telephone calling model
Output.Microphone 1042 can implement various types of noises and eliminate (or suppression) algorithm to eliminate (or suppression) in reception and send out
Send caused noise or interference during audio signal.
Mobile terminal 100 also includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity transducer can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axles) size of acceleration, size and the direction of gravity are can detect that when static, the application available for identification mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared ray sensor, will not be repeated here.
Display unit 106 is used for the information for showing the information inputted by user or being supplied to user.Display unit 106 can wrap
Display panel 1061 is included, LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic can be used
Light-Emitting Diode, Organic Light Emitting Diode) etc. form configure display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is relevant.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment means are driven according to formula set in advance.Contact panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
Contact coordinate is converted into, then gives processor 110, and the order sent of reception processing device 110 and can be performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, detect thereon when contact panel 1071 or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, contact panel 1071 and display panel
1061 be the part independent as two to realize the input of mobile terminal and output function, but in certain embodiments, can
Input and the output function of mobile terminal are realized so that contact panel 1071 and display panel 1061 is integrated, is not done herein specifically
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 100.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storage software program and various data.Memory 109 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 109 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by running or performing the software program and/or module that are stored in memory 109, and call and be stored in storage
Data in device 109, the various functions and processing data of mobile terminal are performed, so as to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) to all parts power supply, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also will not be repeated here including bluetooth module etc..
For the ease of understanding the embodiment of the present invention, the communications network system being based on below to the mobile terminal of the present invention enters
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system
Unite as the LTE system of universal mobile communications technology, the UE that the LTE system includes communicating connection successively (User Equipment, is used
Family equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, evolved UMTS lands
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and here is omitted.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connected with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide UE201 to EPC203 access.
EPC203 can include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling between EPC203, there is provided carrying and connection management.HSS2032 is all to manage for providing some registers
Such as the function of attaching position register (not shown) etc, and preserve some and used about service features, data rate etc.
The special information in family.All customer data can be transmitted by SGW2034, and PGW2035 can provide UE 201 IP
Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources
Point, it selects and provided available strategy and charging control decision-making with charge execution function unit (not shown) for strategy.
IP operation 204 can include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And following new network system etc., do not limit herein.
Reference picture 3, Fig. 3 are the electrical structure block diagram of camera in Fig. 2.
Phtographic lens 1211 is made up of multiple optical lens for forming shot object image, is single-focus lens or varifocal mirror
Head.Phtographic lens 1211 can move in the direction of the optical axis under the control of lens driver 1221, lens driver 1221
According to the control signal from lens driving control circuit 1222, the focal position of control phtographic lens 1211, in zoom lens
In the case of, it also can control focal length.Lens driving control circuit 1222 is according to the control command from microcomputer 1217
Carry out the drive control of lens driver 1221.
It is configured with and takes the photograph near the position of the shot object image formed on the optical axis of phtographic lens 1211, by phtographic lens 1211
Element 1212.Photographing element 1212 is used to image shot object image and obtain image data.On photographing element 1212
Two dimension and it is arranged in a matrix the photodiode for forming each pixel.Each photodiode produces photoelectricity corresponding with light income
Switching current, the opto-electronic conversion electric current carry out charge accumulation by the capacitor being connected with each photodiode.The preceding table of each pixel
Face is configured with the RGB colour filters of Bayer arrangement, schemes in the photographing element 1212 for photo-sensitive cell such as cmos image sensor and CCD
As sensor.
Photographing element 1212 is connected with imaging circuit 1213, and the imaging circuit 1213 carries out electric charge in photographing element 1212
Accumulate to control and read control with picture signal, to being carried out after picture signal (analog picture signal) the reduction replacement noise of the reading
Waveform shaping, and then gain raising etc. is carried out with as appropriate signal level.
Imaging circuit 1213 is connected with A/D converter 1214, and the A/D converter 1214 carries out modulus to analog picture signal
Conversion, to the output digital image signal (hereinafter referred to as view data) of bus 1227.
Bus 1227 is the transmitting path for the various data for reading or generating for being transmitted in the inside of camera.In bus
1227 are connected to above-mentioned A/D converter 1214, are additionally connected to image processor 1215, jpeg processor 1216, microcomputer
Calculation machine 1217, SDRAM (Synchronous Dynamic random access memory, SDRAM)
1218th, memory interface (hereinafter referred to as memory I/F) 1219, LCD (Liquid Crystal Display, liquid crystal display
Device) driver 1220.
Image processor 1215 carries out OB to the view data of the output based on photographing element 1212 and subtracts each other processing, white balance
Adjustment, color matrix computing, gamma conversion, colour difference signal processing, noise removal process at the same change processing, edge treated etc. respectively
Kind image procossing.Jpeg processor 1216 is when by Imagery Data Recording in recording medium 1225, according to JPEG compression mode pressure
Contract the view data read from SDRAM1218.In addition, jpeg processor 1216 carries out JPEG to carry out image reproducing to show
The decompression of view data.When being decompressed, the file being recorded in recording medium 1225 is read, in jpeg processor 1216
In implement decompression after, the view data of decompression is temporarily stored in SDRAM1218 and carried out on LCD1226
Display.In addition, in the present embodiment, as compression of images decompression mode using JPEG modes, but Compress softwares
Contracting mode not limited to this, it is of course possible to using MPEG, TIFF, other compressed and decompressed modes such as H.264.
Microcomputer 1217 plays the function of the control unit overall as the camera, is uniformly controlled the various processing of camera
Sequence.Microcomputer 1217 is connected to operating unit 1223 and flash memory 1224.
Operating unit 1223 includes but is not limited to physical button or virtual key, and the entity or virtual key can be electricity
Source button, camera button, edit key, dynamic image button, reproduction button, menu button, cross key, OK button, delete button,
The operational controls such as the various load buttons such as large buttons and various enter keys, detect the mode of operation of these operational controls.
Testing result is exported to microcomputer 1217.In addition, it is provided with the preceding surface of the LCD1226 as display
Touch panel, the touch location of user is detected, the touch location is exported to microcomputer 1217.Microcomputer 1217
According to the testing result of the operating position from operating unit 1223, various processing sequences corresponding with the operation of user are performed.
Flash memory 1224 stores the program of the various processing sequences for performing microcomputer 1217.Microcomputer 1217
The overall control of camera is carried out according to the program.In addition, flash memory 1224 stores the various adjusted values of camera, microcomputer 1217
Adjusted value is read, the control of camera is carried out according to the adjusted value.
SDRAM1218 is can the electric volatile memory rewritten for what is temporarily stored to view data etc..Should
SDRAM1218 temporarily storages are from the view data of the output of A/D converter 1214 and in image processor 1215, jpeg processor
View data after being handled in 1216 grades.
Memory interface 1219 is connected with recording medium 1225, enters to be about to view data and the text being attached in view data
The first-class data write-in recording medium 1225 of part and the control read from recording medium 1225.Recording medium 1225 is, for example, can
The recording medium such as memory card of disassembled and assembled freely on camera main-body, but not limited to this or it is built in camera main-body
In hard disk etc..
Lcd driver 1210 is connected with LCD1226, and the view data after being handled by image processor 1215 is stored in
SDRAM1218 reads the view data of SDRAM1218 storages and shown on LCD1226, it is necessary to when showing, or, at JPEG
The compressed view data of reason device 1216 is stored in SDRAM1218, and when needing display, jpeg processor 1216 is read
SDRAM1218 compressed view data, then decompressed, the view data after decompression is carried out by LCD1226
Display.
LCD1226 configures to be shown in the back side of camera main-body progress image.The LCD1226LCD), but not limited to this,
It can use the various display panels (LCD1226) such as organic EL, but not limited to this, the various displays such as organic EL can also be used
Panel.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the present invention is proposed.
Embodiment one
The embodiments of the invention provide a kind of exposal control method.Fig. 4 is the exposal control method of the embodiment of the present invention
A kind of schematic flow sheet；As shown in figure 4, methods described includes：
Step 301：The preview image of collection is detected, identifies the display parameters of the preview image.
Step 302：The exposure parameter of each pixel in the preview image is determined based on the display parameters.
Step 303：When detecting image capture instruction, the exposure parameter based on each pixel controls respective pixel
Point exposure, the output image data after the completion of each pixel exposure.
The exposal control method of the present embodiment is applied in mobile terminal, and the mobile terminal includes camera, described to take the photograph
As head includes but is not limited to use CCD (Charge-coupled Device, charge coupled cell) image sensing cells or CMOS
(Complementary Metal-Oxide Semiconductor, complementary metal oxide semiconductor) image sensing cell.Institute
State mobile terminal and be specifically as follows the portable intelligent terminal such as mobile phone, tablet personal computer, intelligent glasses.The camera of the mobile terminal
It can be understood as the photographing element shown in Fig. 3.
In the present embodiment, the preview image of the detection collection, the display parameters of the preview image are identified, are specially：
The preview image of the camera collection is detected, identifies the display parameters of the preview image.Wherein, the display parameters can
Characterize the bright-dark degree of the image acquisition region corresponding to the camera.The display parameters are including but not limited to shown below
At least one of parameter：Brightness, contrast etc..
It is described to be determined based on the display parameters in the preview image often as a kind of embodiment in the present embodiment
The exposure parameter of individual pixel, including：Display parameters based on each pixel in the preview image determine the preview graph
The time for exposure of each pixel as in.
Specifically, the present embodiment is based on bright-dark degree's adjustment corresponding pixel points of each pixel in the preview image
Exposure parameter, specifically adjust the time for exposure of corresponding pixel points.During specific implementation, as a kind of embodiment, institute
Mapping table can be pre-configured with by stating in mobile terminal, the mapping table includes multigroup display parameters scope and corresponding time for exposure
Mapping relations；After the display parameters for then obtaining each pixel, by searching the mapping table, the aobvious of each pixel is obtained
Show the time for exposure corresponding to parameter.Computation model can be also pre-configured with as another embodiment, in the mobile terminal (should
Computation model can be calculation formula), after the display parameters for obtaining each pixel, the calculating for passing through the computation model obtains
Time for exposure corresponding to the display parameters of each pixel.
It is described to be determined based on the display parameters in the preview image as another embodiment in the present embodiment
The exposure parameter of each pixel, including：Display parameters based on each pixel in the preview image determine the preview
Display parameters are higher than the first area of the first predetermined threshold value in image, and/or determine that display parameters are less than in the preview image
The second area of second predetermined threshold value；First predetermined threshold value is higher than second predetermined threshold value；Based on the first area
In the display parameters of each pixel determine time for exposure of each pixel in the first area, and/or, based on described the
The display parameters of each pixel determine the time for exposure of each pixel in the second area in two regions.
Specifically, the exposal control method of the embodiment of the present invention is precisely in order to adapt to incandescent and very dark simultaneous shooting
Scene, based on this, in the present embodiment, the display parameters based on each pixel in the preview image determine the preview
Extreme bright regions (i.e. described first area) and/or very dark region (second area) in image, particular for extreme bright regions (i.e. institute
State first area) and/or very dark region (second area) in time for exposure of each pixel be controlled, i.e., based on the pole
The display parameters of each pixel determine the extreme bright regions (i.e. described first area) in bright area (i.e. described first area)
In each pixel time for exposure, and/or, the display parameters based on each pixel in the very dark region (second area)
Determine the time for exposure of each pixel in the very dark region (second area).And in the preview image except described the
Other regions beyond one region, either other regions in addition to the second area or except the first area and institute
State other regions beyond second area, as a kind of embodiment, can based in other described regions each pixel it is aobvious
Show that parameter determines the time for exposure of corresponding pixel points；As another embodiment, also same the unified time for exposure can be set,
The time for exposure for controlling each pixel in other described regions is the unified time for exposure.
Described to detect image capture instruction in the present embodiment, the structural representation of the camera with reference to shown in Fig. 3 can be with
It is interpreted as, when detecting the input operation for shoot button by operating unit 1223, it is determined that detecting that IMAQ refers to
Order.Further, described image acquisition instructions are performed, the exposure parameter control corresponding pixel points based on each pixel expose
Light, the output image data after the completion of each pixel exposure.
Under normal circumstances, exposure process refers to that light enters image sensing cell by the camera of mobile terminal,
Electric signal is converted optical signals into by photoelectric device (such as photodiode), obtained by the conversion of analog and digital signal
Data signal.And for mobile terminals such as mobile phone, tablet personal computers, due in the absence of physical shutter, so being the pattern of row scanning
Or the pattern of global exposure realizes above-mentioned transfer process from image sensing cell, and the information of every two field picture is converted into numeral
Signal.And the exposure control scheme of the present embodiment, in actual applications, can be by single pixel as a kind of embodiment
Point adds control of the controllable material film plating realization to the exposure parameter of each pixel point by point.Such as to image sensing cell
Incident side surface carry out plated film, plated film can use PLC technology material；To each in preview area corresponding to camera
Pixel is divided, and adds the Coating Materials of PLC technology point by point to each pixel, by corresponding to each pixel
The control of current parameters realize that each pixel receives light or shut out the light, so as to realize the exposure of each pixel
The independent control of duration.Certainly, the control in the present embodiment to the exposure parameter of each pixel is not limited to above-mentioned embodiment.
Further, after the completion of each pixel exposes according to the corresponding time for exposure in the preview image, complete figure is exported
As data.
Using the technical scheme of the embodiment of the present invention, each picture is realized by the determination of the exposure parameter to each pixel
The independent spectrum assignment of vegetarian refreshments, greatly improves image taking effect, improves the precision of IMAQ, improves user's
Operating experience, especially meet photographed scene and meanwhile have concurrently incandescent and it is very dark in the case of can obtain the image of preferable effect,
The scene of IMAQ is also enriched on the other hand.
Embodiment two
The embodiment of the present invention additionally provides a kind of exposal control method.Fig. 5 is the exposal control method of the embodiment of the present invention
Another schematic flow sheet；As shown in figure 5, methods described includes：
Step 401：The preview image of collection is detected, identifies the display parameters of the preview image.
Step 402：Display parameters based on the preview image judge whether the preview image meets preparatory condition, when
When the preview image meets preparatory condition, the mobile terminal is controlled to be in point pixel exposure pattern.
Step 403：When the mobile terminal is in point pixel exposure pattern, determined based on the display parameters described pre-
Look at the exposure parameter of each pixel in image.
Step 404：When detecting image capture instruction, the exposure parameter based on each pixel controls respective pixel
Point exposure, the output image data after the completion of each pixel exposure.
The exposal control method of the present embodiment is applied in mobile terminal, and the mobile terminal includes camera, described to take the photograph
As head includes but is not limited to use ccd image sensing unit or cmos image sensing unit.The mobile terminal is specifically as follows
The portable intelligent terminal such as mobile phone, tablet personal computer, intelligent glasses.The image sensing cell of the mobile terminal can be understood as Fig. 3
Shown photographing element.
In the present embodiment, the preview image of the detection collection, the display parameters of the preview image are identified, are specially：
The preview image of the camera collection is detected, identifies the display parameters of the preview image.Wherein, the display parameters can
Characterize the bright-dark degree of the image acquisition region corresponding to the camera.The display parameters are including but not limited to shown below
At least one of parameter：Brightness, contrast etc..
In the present embodiment, before the time for exposure of each point pixel is determined by the way of point pixel exposure, need first
Judge that mobile terminal currently whether in a point pixel exposure pattern, when in pixel exposure pattern, further performs step
403 and step 404；Accordingly, when being not in a pixel exposure pattern, then can be exposed according to existing any exposure mode
Light.
As a kind of embodiment, the display parameters based on the preview image judge whether the preview image is full
Sufficient preparatory condition, including：Display parameters based on the preview image judge the display of the first area in the preview image
Whether parameter is more than first threshold and whether the display parameters of the second area in the preview image are less than Second Threshold；Institute
State first area and be different from the second area；The first threshold is more than the Second Threshold；When in the preview image
The display parameters of first area are more than first threshold and the display parameters of the second area in the preview image are less than the second threshold
During value, judge that the preview image meets preparatory condition.
Specifically, the exposal control method of the embodiment of the present invention is precisely in order to adapt to incandescent and very dark simultaneous shooting
Scene, based on this, in the present embodiment, the display parameters based on each pixel in the preview image determine the preview
Bright area (i.e. described first area) and/or dark areas (second area) in image, judge the display ginseng of the first area
Whether number is more than first threshold, and whether the display parameters of the second area are more than Second Threshold, namely judges preview image
In bright area (i.e. described first area) and/or dark areas (second area) whether reach start point pixel exposure pattern mark
It is accurate；The secondth area being more than when the display parameters of the first area in the preview image in first threshold and the preview image
When the display parameters in domain are less than Second Threshold, namely the brightness of the first area and/or second area reaches startup point pixel
During the standard of exposure mode, a pixel exposure pattern is switched to, under described pixel exposure pattern, particular for bright area
The time for exposure of each pixel is controlled in (i.e. described first area) and/or dark areas (second area).
Described to detect image capture instruction in the present embodiment, the structural representation of the camera with reference to shown in Fig. 3 can be with
It is interpreted as, when detecting the input operation for shoot button by operating unit 1223, it is determined that detecting that IMAQ refers to
Order.Further, described image acquisition instructions are performed, the exposure parameter control corresponding pixel points based on each pixel expose
Light, the output image data after the completion of each pixel exposure.
Under normal circumstances, exposure process refers to that light enters image sensing cell by the camera lens of mobile terminal, logical
Cross photoelectric device (such as photodiode) and convert optical signals into electric signal, number is being obtained by the conversion of analog and digital signal
Word signal.And for mobile terminals such as mobile phone, tablet personal computers, due in the absence of physical shutter, thus be row scanning pattern or
The pattern of the global exposure of person realizes above-mentioned transfer process from image sensing cell, and the information of every two field picture is converted into digital letter
Number.And the exposure control scheme of the present embodiment, in actual applications, can be by single pixel point as a kind of embodiment
Control of the controllable material film plating realization to the exposure parameter of each pixel is added point by point.Such as to image sensing cell
Incident side surface carries out plated film, and plated film can use the material of PLC technology；To each picture in preview area corresponding to camera
Vegetarian refreshments is divided, and adds the Coating Materials of PLC technology point by point to each pixel, by corresponding to each pixel
The control of current parameters realizes that each pixel receives light or shut out the light, during so as to realize the exposure of each pixel
Long independent control.Certainly, the control in the present embodiment to the exposure parameter of each pixel is not limited to above-mentioned embodiment.Enter
One step, after the completion of each pixel exposes according to the corresponding time for exposure in the preview image, export complete image
Data.
Using the technical scheme of the embodiment of the present invention, each picture is realized by the determination of the exposure parameter to each pixel
The independent spectrum assignment of vegetarian refreshments, greatly improves image taking effect, improves the precision of IMAQ, improves user's
Operating experience, especially meet photographed scene and meanwhile have concurrently incandescent and it is very dark in the case of can obtain the image of preferable effect,
The scene of IMAQ is also enriched on the other hand.
Embodiment three
The embodiment of the present invention additionally provides a kind of mobile terminal.Fig. 6 is the composition knot of the mobile terminal of the embodiment of the present invention
Structure schematic diagram；As shown in fig. 6, the mobile terminal includes：Camera 51, it is configured to gather preview image；
Memory 53, it is configured to store spectrum assignment program；
Processor 52, it is configured to perform the spectrum assignment program to perform operations described below：Identify the preview image
Display parameters；The exposure parameter of each pixel in the preview image is determined based on the display parameters；Detect that image is adopted
During collection instruction, the exposure parameter control corresponding pixel points exposure based on each pixel, exposed in each pixel
After the completion of output image data.
In the present embodiment, the camera 51 includes but is not limited to sense using ccd image sensing unit or cmos image
Unit.The mobile terminal is specifically as follows the portable intelligent terminal such as mobile phone, tablet personal computer, intelligent glasses.The mobile terminal
Image sensing cell can be understood as photographing element shown in Fig. 3.
In the present embodiment, the display parameters can characterize the light and shade of the image acquisition region corresponding to the camera 51
Degree.The display parameters include but is not limited at least one of parameter shown below：Brightness, contrast etc..
In the present embodiment, as a kind of embodiment, the processor 52, be configured to perform the spectrum assignment program with
Perform operations described below：Display parameters based on each pixel in the preview image determine each pixel in the preview image
The time for exposure of point.
Specifically, bright-dark degree of the processor 52 based on each pixel in the preview image adjusts respective pixel
The exposure parameter of point, specifically adjust the time for exposure of corresponding pixel points.During specific implementation, as a kind of embodiment party
Formula, mapping table can be pre-configured with the processor 52, the mapping table includes multigroup display parameters scope and corresponding exposure
Mapping relations between light time；After then the processor 52 obtains the display parameters of each pixel, by searching the mapping table,
Obtain the time for exposure corresponding to the display parameters of each pixel.As another embodiment, also may be used in the processor 52
Computation model (computation model can be calculation formula) is pre-configured with, the processor 52 obtains the display ginseng of each pixel
After number, the time for exposure corresponding to the display parameters of each pixel is obtained by the calculating of the computation model.
Specifically, the exposal control method of the embodiment of the present invention is precisely in order to adapt to incandescent and very dark simultaneous shooting
Scene, based on this, in the present embodiment, display parameters of the processor 52 based on each pixel in the preview image
Extreme bright regions (i.e. described first area) and/or very dark region (second area) in the preview image are determined, particular for
The time for exposure of each pixel is controlled in extreme bright regions (i.e. described first area) and/or very dark region (second area)
System, i.e., the display parameters based on each pixel in the extreme bright regions (i.e. described first area) determine the extreme bright regions
The time for exposure of each pixel in (i.e. described first area), and/or, based on each in the very dark region (second area)
The display parameters of pixel determine the time for exposure of each pixel in the very dark region (second area).And for described pre-
Other regions look in image in addition to the first area, either other regions in addition to the second area or remove
Other regions beyond the first area and the second area, as a kind of embodiment, the processor 52 can be based on
The display parameters of each pixel determine the time for exposure of corresponding pixel points in other described regions；As another embodiment party
Formula, the processor 52 also same can set the unified time for exposure, control the exposure of each pixel in other described regions
Time is the unified time for exposure.
In the present embodiment, the processor 52 detects image capture instruction, the structural representation of the camera with reference to shown in Fig. 3
Figure, it can be understood as, the processor 52 can be realized by operating unit 1223.It is directed to being detected by operating unit 1223
During the input operation of shoot button, it is determined that detecting image capture instruction.Further, the processor 52 performs described image
Acquisition instructions, the exposure parameter control corresponding pixel points exposure based on each pixel, expose in each pixel
After the completion of output image data.
Under normal circumstances, exposure process refers to that light enters image sensing cell by the camera of mobile terminal,
Electric signal is converted optical signals into by photoelectric device (such as photodiode), obtained by the conversion of analog and digital signal
Data signal.And for mobile terminals such as mobile phone, tablet personal computers, due in the absence of physical shutter, so being the pattern of row scanning
Or the pattern of global exposure realizes above-mentioned transfer process from image sensing cell, and the information of every two field picture is converted into numeral
Signal.And the exposure control scheme of the present embodiment, in actual applications, as a kind of embodiment, the processor 52 can lead to
Cross the control for adding controllable material film plating realization point by point to single pixel point to the exposure parameter of each pixel.It is such as right
The incident side surface of image sensing cell carries out plated film, and plated film can use the material of PLC technology；To corresponding to camera 51
Each pixel is divided in preview area, the Coating Materials of PLC technology is added point by point to each pixel, by right
It should realize that each pixel receives light or shut out the light in the control of the current parameters of each pixel, it is every so as to realize
The independent control of the exposure time of individual pixel.Certainly, the control in the present embodiment to the exposure parameter of each pixel is unlimited
In above-mentioned embodiment.Further, each pixel exposes completion according to the corresponding time for exposure in the preview image
Afterwards, the processor 52 exports complete view data.
Example IV
The embodiment of the present invention additionally provides a kind of mobile terminal, as shown in fig. 6, the mobile terminal includes：
Camera 51, it is configured to gather preview image；
Memory 53, it is configured to store spectrum assignment program；
Processor 52, it is configured to perform the spectrum assignment program to perform operations described below：Identify the preview image
Display parameters；Display parameters based on the preview image judge whether the preview image meets preparatory condition；When described pre-
When image of looking at meets preparatory condition, the mobile terminal is controlled to be in point pixel exposure pattern；Point is in the mobile terminal
During pixel exposure pattern, the exposure parameter of each pixel in the preview image is determined based on the display parameters；Detect
During image capture instruction, the exposure parameter control corresponding pixel points exposure based on each pixel, in each pixel
Output image data after the completion of point exposure.
In the present embodiment, the camera 51 includes but is not limited to sense using ccd image sensing unit or cmos image
Unit.The mobile terminal is specifically as follows the portable intelligent terminal such as mobile phone, tablet personal computer, intelligent glasses.The mobile terminal
Image sensing cell can be understood as photographing element shown in Fig. 3.
In the present embodiment, the display parameters can characterize the light and shade of the image acquisition region corresponding to the camera 51
Degree.The display parameters include but is not limited at least one of parameter shown below：Brightness, contrast etc..
In the present embodiment, the processor 52, it is configured to perform the spectrum assignment program to perform operations described below：It is based on
The display parameters of the preview image judge the first area in the preview image display parameters whether be more than first threshold,
And whether the display parameters of the second area in the preview image are less than Second Threshold；The first area is different from described the
Two regions；The first threshold is more than the Second Threshold；When the display parameters of the first area in the preview image are more than
When the display parameters of first threshold and the second area in the preview image are less than Second Threshold, the preview image is judged
Meet preparatory condition.
Specifically, the exposal control method of the embodiment of the present invention is precisely in order to adapt to incandescent and very dark simultaneous shooting
Scene, based on this, in the present embodiment, display parameters of the processor 52 based on each pixel in the preview image
Bright area (i.e. described first area) and/or the dark areas (second area) in the preview image are determined, judges described first
Whether the display parameters in region are more than first threshold, and whether the display parameters of the second area are more than Second Threshold, namely
Judge whether the bright area (i.e. described first area) in preview image and/or dark areas (second area) reach startup point pixel
The standard of exposure mode；When the display parameters of the first area in the preview image are more than first threshold and the preview graph
When the display parameters of second area as in are less than Second Threshold, namely the brightness of the first area and/or second area reaches
During to the standard for starting point pixel exposure pattern, the control of processor 52 switches to a pixel exposure pattern, in the point picture
Under plain exposure mode, particular for each pixel in bright area (i.e. described first area) and/or dark areas (second area)
Time for exposure be controlled.
In the present embodiment, the processor 52 detects image capture instruction, the structural representation of the camera with reference to shown in Fig. 3
Figure, it can be understood as, the processor 52 can be realized by operating unit 1223.It is directed to being detected by operating unit 1223
During the input operation of shoot button, it is determined that detecting image capture instruction.Further, the processor 52 performs described image
Acquisition instructions, the exposure parameter control corresponding pixel points exposure based on each pixel, expose in each pixel
After the completion of output image data.
Under normal circumstances, exposure process refers to that light enters image sensing cell by the camera of mobile terminal,
Electric signal is converted optical signals into by photoelectric device (such as photodiode), obtained by the conversion of analog and digital signal
Data signal.And for mobile terminals such as mobile phone, tablet personal computers, due in the absence of physical shutter, so being the pattern of row scanning
Or the pattern of global exposure realizes above-mentioned transfer process from image sensing cell, and the information of every two field picture is converted into numeral
Signal.And the exposure control scheme of the present embodiment, in actual applications, as a kind of embodiment, the processor 52 can lead to
Cross the control for adding controllable material film plating realization point by point to single pixel point to the exposure parameter of each pixel.It is such as right
The incident side surface of image sensing cell carries out plated film, and plated film can use the material of PLC technology；To corresponding to camera 51
Each pixel is divided in preview area, the Coating Materials of PLC technology is added point by point to each pixel, by right
It should realize that each pixel receives light or shut out the light in the control of the current parameters of each pixel, it is every so as to realize
The independent control of the exposure time of individual pixel.Certainly, the control in the present embodiment to the exposure parameter of each pixel is unlimited
In above-mentioned embodiment.Further, each pixel exposes completion according to the corresponding time for exposure in the preview image
Afterwards, described control unit 52 exports complete view data.
In the present embodiment, memory 53 can by any kind of volatibility or non-volatile memory device or they
Combination realize.Wherein, nonvolatile memory can be read-only storage (ROM, Read Only Memory), may be programmed
Read-only storage (PROM, Programmable Read-Only Memory), Erasable Programmable Read Only Memory EPROM (EPROM,
Erasable Programmable Read-Only Memory), Electrically Erasable Read Only Memory (EEPROM,
Electrically Erasable Programmable Read-Only Memory), magnetic RAM (FRAM,
Ferromagnetic Random Access Memory), flash memory (Flash Memory), magnetic surface storage, light
Disk or read-only optical disc (CD-ROM, Compact Disc Read-Only Memory)；Magnetic surface storage can be that disk is deposited
Reservoir or magnetic tape storage.Volatile memory can be random access memory (RAM, Random Access Memory),
It is used as External Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static random
Access memory (SRAM, Static Random Access Memory), synchronous static RAM (SSRAM,
Synchronous Static Random Access Memory), dynamic random access memory (DRAM, Dynamic
Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random
Access Memory), double data speed synchronous dynamic RAM (DDRSDRAM, Double Data Rate
Synchronous Dynamic Random Access Memory), enhanced Synchronous Dynamic Random Access Memory
(ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronized links dynamic random are deposited
Access to memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct rambus arbitrary access are deposited
Reservoir (DRRAM, Direct Rambus Random Access Memory).The memory 53 of description of the embodiment of the present invention is intended to
The including but not limited to memory of these and any other suitable type.
Processor 52 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 52 or the instruction of software form.Above-mentioned
Processor 52 can be general processor, digital signal processor (DSP, Digital Signal Processor), Huo Zheqi
His PLD, discrete gate or transistor logic, discrete hardware components etc..Processor 52 can realize or
Perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or
Any conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, hardware decoding can be embodied directly in
Computing device is completed, or performs completion with the hardware in decoding processor and software module combination.Software module can position
In storage medium, the storage medium is located at memory 53, and processor 52 reads the information in memory 53, complete with reference to its hardware
The step of into preceding method.
It should be noted that：The mobile terminal that above-described embodiment provides is when being exposed control, only with above-mentioned each program
The division progress of module as needed can distribute above-mentioned processing by different program moulds for example, in practical application
Block is completed, i.e., the internal structure of device is divided into different program modules, to complete all or part of place described above
Reason.In addition, the mobile terminal that above-described embodiment provides belongs to same design with exposal control method embodiment, it was implemented
Journey refers to embodiment of the method, repeats no more here.
The embodiment of the present invention additionally provides a kind of computer-readable recording medium, is stored thereon with computer program, the meter
When calculation machine program is run by processor, perform：The preview image of collection is detected, identifies the display parameters of the preview image；Base
The exposure parameter of each pixel in the preview image is determined in the display parameters；When detecting image capture instruction, base
In the exposure parameter control corresponding pixel points exposure of each pixel, figure is exported after the completion of each pixel exposure
As data.
As a kind of embodiment, when the computer program is run by processor, perform：Based on every in the preview image
The display parameters of individual pixel determine the time for exposure of each pixel in the preview image.
As a kind of embodiment, when the computer program is run by processor, perform：It is aobvious based on the preview image
Show that parameter judges whether the preview image meets preparatory condition；When the preview image meets preparatory condition, described in control
Mobile terminal is in point pixel exposure pattern；When the mobile terminal is in point pixel exposure pattern, based on the display ginseng
Number determines the exposure parameter of each pixel in the preview image.
Specifically, when the computer program is run by processor, perform：Display parameters based on the preview image judge
Whether the display parameters of the first area in the preview image are more than the second area in first threshold and the preview image
Display parameters whether be less than Second Threshold；The first area is different from the second area；The first threshold is more than institute
State Second Threshold；When the display parameters of the first area in the preview image are more than in first threshold and the preview image
The display parameters of second area when being less than Second Threshold, judge that the preview image meets preparatory condition.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal (can be mobile phone, computer, service
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (11)
1. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
Camera, it is configured to gather preview image；
Memory, it is configured to store spectrum assignment program；
Processor, it is configured to perform the spectrum assignment program to perform operations described below：Identify the display ginseng of the preview image
Number；The exposure parameter of each pixel in the preview image is determined based on the display parameters；Detect image capture instruction
When, the exposure parameter control corresponding pixel points exposure based on each pixel, after the completion of each pixel exposure
Output image data.
2. mobile terminal according to claim 1, it is characterised in that the processor, be configured to perform the exposure control
Processing procedure sequence is to perform operations described below：Display parameters based on each pixel in the preview image are determined in the preview image
The time for exposure of each pixel.
3. mobile terminal according to claim 1, it is characterised in that the processor, be additionally configured to perform the exposure
Control program is to perform operations described below：The exposure parameter of each pixel in the preview image is determined based on the display parameters
Before, the display parameters based on the preview image judge whether the preview image meets preparatory condition；When the preview graph
As when meeting preparatory condition, controlling the mobile terminal to be in point pixel exposure pattern.
4. mobile terminal according to claim 3, it is characterised in that the processor, be configured to perform the exposure control
Processing procedure sequence is to perform operations described below：When the mobile terminal is in point pixel exposure pattern, determined based on the display parameters
The exposure parameter of each pixel in the preview image.
5. mobile terminal according to claim 3, it is characterised in that the processor, be configured to perform the exposure control
Processing procedure sequence is to perform operations described below：Display parameters based on the preview image judge the first area in the preview image
Whether display parameters are more than first threshold and whether the display parameters of the second area in the preview image are less than the second threshold
Value；The first area is different from the second area；The first threshold is more than the Second Threshold；When the preview image
In the display parameters of first area be more than the display parameters of first threshold and the second area in the preview image and be less than the
During two threshold values, judge that the preview image meets preparatory condition.
A kind of 6. exposal control method, applied in mobile terminal；Characterized in that, methods described includes：
The preview image of collection is detected, identifies the display parameters of the preview image；
The exposure parameter of each pixel in the preview image is determined based on the display parameters；
When detecting image capture instruction, the exposure parameter control corresponding pixel points exposure based on each pixel, in institute
State output image data after the completion of each pixel exposes.
7. according to the method for claim 6, it is characterised in that described to determine the preview image based on the display parameters
In each pixel exposure parameter, including：
Display parameters based on each pixel in the preview image determine the exposure of each pixel in the preview image
Time.
8. according to the method for claim 6, it is characterised in that described to determine the preview image based on the display parameters
In each pixel exposure parameter before, methods described also includes：
Display parameters based on the preview image judge whether the preview image meets preparatory condition；
When the preview image meets preparatory condition, the mobile terminal is controlled to be in point pixel exposure pattern.
9. according to the method for claim 8, it is characterised in that described to determine the preview image based on the display parameters
In each pixel exposure parameter, including：
When the mobile terminal is in point pixel exposure pattern, determined based on the display parameters each in the preview image
The exposure parameter of pixel.
10. according to the method for claim 8, it is characterised in that the display parameters based on the preview image judge
Whether the preview image meets preparatory condition, including：
Display parameters based on the preview image judge whether the display parameters of the first area in the preview image are more than
Whether the display parameters of first threshold and the second area in the preview image are less than Second Threshold；The first area is not
It is same as the second area；The first threshold is more than the Second Threshold；
The secondth area being more than when the display parameters of the first area in the preview image in first threshold and the preview image
When the display parameters in domain are less than Second Threshold, judge that the preview image meets preparatory condition.
11. a kind of computer-readable recording medium, it is stored thereon with spectrum assignment program, it is characterised in that the spectrum assignment
The step of exposal control method described in any one of claim 6 to 10 is realized when program is executed by processor.
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| CN201710607911.4A CN107360378B (en) | 2017-07-24 | 2017-07-24 | Exposure control method, mobile terminal and computer storage medium |
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| CN201710607911.4A CN107360378B (en) | 2017-07-24 | 2017-07-24 | Exposure control method, mobile terminal and computer storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113228621A (en) * | 2018-12-29 | 2021-08-06 | 浙江大华技术股份有限公司 | Exposure control method and system |
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