CN108111741A - A kind of method and terminal for realizing image taking - Google Patents
A kind of method and terminal for realizing image taking Download PDFInfo
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- CN108111741A CN108111741A CN201611044523.1A CN201611044523A CN108111741A CN 108111741 A CN108111741 A CN 108111741A CN 201611044523 A CN201611044523 A CN 201611044523A CN 108111741 A CN108111741 A CN 108111741A
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- image
- exposure value
- increase
- sensitivity
- value
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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
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
-
- 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
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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
- H04N23/80—Camera processing pipelines; Components thereof
Abstract
A kind of method and terminal for realizing image taking, including：When the main body being taken is in relative static conditions, with the first default step-length increase exposure value (EV)；The image obtained during increase exposure value is analyzed, when analysis, which obtains, meets the image of preset quality requirement, stops increase exposure value；The image for meeting preset quality requirement that shooting analysis obtains.The embodiment of the present invention carries out image taking by exposure value adjust automatically, and avoiding manual setting acquisition parameters influences shooting efficiency；Whether preset quality requirement is met by the image for judging to obtain, ensure that the shooting quality of image.
Description
Technical field
Present document relates to but be not limited to image processing techniques, espespecially a kind of method and terminal for realizing image taking.
Background technology
With the enhancing of mobile terminal function, people be increasingly accustomed to during live and work using mobile terminal into
The shooting of row image.
In correlation technique, when the shooting of static personage or landscape is carried out using mobile terminal, user generally manually sets
The acquisition parameters including sensitivity (ISO) and/or exposure value (EV) are put, by the setting of acquisition parameters to adjust intake
The clarity of image obtains the image for meeting quality requirement.
Above by the method for manual setting acquisition parameters, generally require to carry out the setting of acquisition parameters, shadow for a long time
It rings user and efficiently carries out image taking；In addition, if user can not accurately complete the setting of acquisition parameters, then user is difficult to obtain
The image of quality requirement must be met.
The content of the invention
It is the general introduction of the theme to being described in detail herein below.It is to limit the protection model of claim that this general introduction, which is not,
It encloses.
The embodiment of the present invention provides a kind of method and device for realizing image taking, can efficiently realize image taking.
An embodiment of the present invention provides a kind of terminal, including：Exposure adjusting unit, analysis and processing unit and shooting unit；
Wherein,
Exposure adjusting unit is used for, and when the main body being taken is in relative static conditions, is exposed with the first default step-length increase
Light value；
Analysis and processing unit is used for, and the image obtained during increase exposure value is analyzed, is met in advance until analysis obtains
If during the image of quality requirement, stop increase exposure value；
Shooting unit is used for, the image for meeting preset quality requirement that shooting analysis obtains.
Optionally, the terminal further includes：
Photosensitive adjustment unit is increased to maximum for the exposure value, and does not analyze acquisition and meet the default matter
When measuring the image of requirement, the exposure value is kept in maximum, and with the second default step-length increase sensitivity；
The shooting unit is additionally operable to, and image taking is carried out during with the second default step-length increase sensitivity.
Optionally, the exposure adjusting unit is specifically used for,
It is pre- with described first since the minimum value of the exposure value when the main body being taken is in relative static conditions
If step-length increases exposure value.
Optionally, the analysis and processing unit is specifically used for,
When increasing the exposure value each time with the described first default step-length, the image obtained after increase exposure value is distinguished
It is made whether the analysis for meeting the preset quality requirement, and when analysis obtains and meets the image of preset quality requirement, stops
Increase exposure value.
Optionally, the photosensitive adjustment unit is specifically used for, pre- with described second since the minimum value of the photosensitive value
If step-length increases sensitivity；
The analysis and processing unit is additionally operable to, when increasing sensitivity according to the described second default step-length each time, to increase
The image obtained after sensitivity is analyzed；Meet the preset quality until analysis obtains the image obtained after increase sensitivity
It is required that when, stop increase photosensitive value；
The shooting unit is additionally operable to, and when sensitivity is increased to maximum, is obtained if analysis and processing unit is not analyzed yet
The image of the preset quality requirement, the image obtained when shooting sensitivity is maximum and exposure value is maximum must be met.
On the other hand, the embodiment of the present invention also provides a kind of method for realizing image taking, including：
When the main body being taken is in relative static conditions, with the first default step-length increase exposure value；
The image obtained during increase exposure value is analyzed, until analysis acquisition meets the image of preset quality requirement
When, stop increase exposure value；
The image for meeting preset quality requirement that shooting analysis obtains.
Optionally, if the exposure value is increased to maximum, and acquisition is not analyzed and meets the preset quality requirement
Image, the method further includes：
The exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Image taking is carried out during the sensitivity is increased with the second default step-length.
Optionally, the increase exposure value includes：
It is pre- with described first since the minimum value of the exposure value when the main body being taken is in relative static conditions
If step-length increases exposure value.
Optionally, the image obtained during described pair of increase exposure value, which carries out analysis, to be included：
When increasing the exposure value each time with the described first default step-length, the image obtained after increase exposure value is distinguished
It is made whether the analysis for meeting the preset quality requirement.
Optionally, it is described to be included with the second default step-length increase sensitivity：
Since the minimum value of the photosensitive value, with the described second default step-length increase sensitivity；
The image taking that carried out during sensitivity is increased includes：
When each time according to the described second default step-length increase sensitivity, the image obtained after increase sensitivity is divided
Analysis；When analysis obtains the image that obtains after increase sensitivity and meets the preset quality requirement, stop increase photosensitive value, and to point
The image for meeting the preset quality requirement of analysis acquisition is shot；When sensitivity is increased to maximum, if do not divided yet
Analysis obtains the image for meeting the preset quality requirement, the figure obtained when shooting sensitivity is maximum and exposure value is maximum
Picture.
Compared with correlation technique, technical solution of the embodiment of the present invention includes：The main body being taken is in relative static conditions
When, with the first default step-length increase exposure value；The image obtained during increase exposure value is analyzed, until analysis is met
During the image of preset quality requirement, stop increase exposure value；The image for meeting preset quality requirement that shooting analysis obtains.This hair
Bright embodiment carries out image taking by exposure value adjust automatically, and avoiding manual setting acquisition parameters influences shooting efficiency；It is logical
It crosses whether the image for judging to obtain meets preset quality requirement, ensure that the shooting quality of image.
After reading and understanding attached drawing and being described in detail, it can be appreciated that other aspects.
Description of the drawings
The hardware architecture diagram of Fig. 1 each one optional mobile terminals of embodiment to realize the present invention；
Fig. 2 is the block diagram of the essential electrical structure of one optional camera of the embodiment of the present invention；
Fig. 3 is the flow chart for the method that the embodiment of the present invention realizes image taking；
Fig. 4 is the user interface schematic diagram that the embodiment of the present invention is adjusted the first default step-length；
Fig. 5 is the user interface schematic diagram that the embodiment of the present invention is adjusted the second default step-length；
Fig. 6 is that the embodiment of the present invention opens the preferential user interface schematic diagram of sensitivity；
Fig. 7 is the flow chart for the method that another embodiment of the present invention realizes image taking；
Fig. 8 is a kind of structure diagram of terminal of the embodiment of the present invention.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where there is no conflict, in the embodiment and embodiment in the application
Feature can mutually be combined.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For representing the suffix of such as " module ", " component " or " unit " of element only for being conducive to the explanation of the present invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention can include such as moving
Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PP are (just
Take formula multimedia player), the mobile terminal of guider etc. and such as number TV, desktop computer etc. it is fixed eventually
End.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that except being used in particular for mobile purpose
Element outside, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 to realize the present invention each one optional mobile terminal of embodiment hardware configuration signal.
Mobile terminal 100 can include A/V (audio/video) input unit 120, user input unit 130, output unit
150th, memory 160, controller 180 and power supply unit 190 etc..Fig. 1 shows the mobile terminal with various assemblies, still
It should be understood that, it is not required that implement all components shown.More or fewer components can alternatively be implemented.It will be below
The element of mobile terminal is described in detail.
A/V input units 120 are used to receive audio or video signal.A/V input units 120 can include camera 121, phase
Machine 121 in video acquisition mode or image capture mode by image capture apparatus obtain static images or video image
Data are handled.Treated, and picture frame may be displayed on display unit 151.Through camera 121, treated that picture frame can
It, can be according to shifting to be stored in memory 160 (or other storage mediums) or be sent via wireless communication unit 110
The construction of dynamic terminal provides two or more cameras 121.
User input unit 130 can generate key input data to control each of mobile terminal according to order input by user
Kind operation.User input unit 130 allows user to input various types of information, and can include keyboard, metal dome, touch
Plate (for example, sensitive component of detection variation of resistance, pressure, capacitance etc. caused by by contact), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch-screen can be formed.
Output unit 150 is configured to provide output signal (for example, audio is believed with vision, audio and/or tactile manner
Number, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include display unit 151.
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can be shown with conversing or other communicating (for example, text messaging, multimedia file
Download etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, show video or figure
UI or GUI of picture and correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch-screen when, display unit
151 may be used as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence so that user to be allowed to be watched from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 can include two or more display units (or other display devices), for example, moving
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used for detection to touch
Input pressure and touch input position and touch input area.
Memory 160 can store software program of the processing performed by controller 180 and control operation etc., Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can be stored on the vibrations of various modes and audio signal exported when touching and be applied to touch-screen
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RA), static random-access storage
Device (SRA), read-only memory (RO), electrically erasable programmable read-only memory (EEPRO), programmable read only memory (PRO),
Magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can be with performing depositing for memory 160 by network connection
Store up the network storage device cooperation of function.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 performs and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 can include reproducing (or playback) more matchmakers
The multi-media module 181 of volume data, multi-media module 181 can be constructed in controller 180 or can be structured as and control
Device 180 separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input performed on the touchscreen or picture
It draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Appropriate electric power needed for part and component.
Various embodiments described herein can with use such as computer software, hardware or any combination thereof calculating
Machine readable medium is implemented.Implement for hardware, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, microcontroller, microprocessor, are designed to perform function described herein controller
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can be with allowing to perform the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any appropriate programming language Lai
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, oneself according to its function through describing mobile terminal.In the following, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Fig. 2 is the block diagram of the essential electrical structure of one optional camera of the embodiment of the present invention.Phtographic lens 701 is by being used for shape
Multiple optical lens into shot object image are formed, and are single-focus lens or zoom lens, wherein in the present embodiment, phtographic lens
701 be two.Phtographic lens 701 can in the direction of the optical axis be moved by lens driving portion 711, according to from lens driving control
The control signal in portion 712 processed, control phtographic lens 701 focal position, in the case of zoom lens, also control focus away from
From.Lens driving control circuit 712 carries out the driving in lens driving portion 711 according to the control command from microcomputer 707
Control.
It is formed on the optical axis of phtographic lens 701, by phtographic lens 701 near the position of shot object image and is configured with camera shooting member
Part 702.Photographing element 702 is played as being imaged to shot object image and obtain the function of the image pickup part of image data.It is taking the photograph
The photodiode for forming each pixel is two-dimensionally arranged in a matrix on element 702.Each photodiode generates and light
Corresponding opto-electronic conversion electric current is measured, which carries out charge accumulation by the capacitor being connected with each photodiode.
The front surface of each pixel is configured with the RGB colour filters of bayer arrangement.
Photographing element 702 is connected with imaging circuit 703, which carries out charge accumulation in photographing element 702
Control and picture signal read control, and the picture signal (analog picture signal) of the reading is reduced and resets the laggard traveling wave shape of noise
Shaping, and then gain raising etc. is carried out to become appropriate signal level.Imaging circuit 703 turns with Analog-digital Converter (A/D)
It changes portion 704 to connect, which carries out analog-to-digital conversion to analog picture signal, to 199 output digital image of bus believes
Number (hereinafter referred to as image data).
Bus 199 is for being transmitted in the transmitting path for the various data that the inside of camera reads or generates.In bus 199
Be connected to above-mentioned A/D converter sections 704, be additionally connected to image processor 705, jpeg processor 706, microcomputer 707,
Dynamic RAM (SDRA, Synchronous DRA) 708, memory interface (hereinafter referred to as memory I/F)
709th, liquid crystal display (LCD, Liquid Crystal Display) driver 710.
Image processor 705 carries out OB to the image data of the output based on photographing element 702 and subtracts each other processing, white balance tune
Whole, color matrix computing, gamma conversion, colour difference signal processing, noise removal process while to change processing, edge treated etc. various
Image procossing.Jpeg processor 706 when by Imagery Data Recording in recording medium 715, according to JPEG compression mode compress from
The image data that SDRA 708 is read.In addition, jpeg processor 706 carries out jpeg image number in order to which image reproducing is carried out to show
According to decompression.When unziping it, the file being recorded in recording medium 715 is read, is implemented in jpeg processor 706
After decompression, the image data of decompression is temporarily stored in SDRA 708 and is shown on LCD716.In addition,
In the present embodiment, mode is decompressed using JPEG modes as compression of images, however compressed and decompressed mode is not limited to
This, it is of course possible to is using PEG, TIFF, other compressed and decompressed modes such as H.264.
Microcomputer 707 plays the function of the control unit as camera entirety, is uniformly controlled the various processing of camera
Sequence.Microcomputer 707 is connected to operating unit 713 and flash memory 714.
Operating unit 713 includes but 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 operation portions material such as the various load buttons such as large buttons and various enter keys detects the mode of operation of these operation portion materials.
Testing result is exported to microcomputer 707.In addition, the LCD716 as display unit front surface be equipped with touch
Panel is touched, detects the touch location of user, which is exported to microcomputer 707.Microcomputer 707 is according to next
From the testing result of the operation portion material of operating unit 713, various processing sequences corresponding with the operation of user are performed.Equally, this
Place can be testing result of the computer 707 according to the touch panel before LCD716, perform corresponding with the operation of user each
Kind processing sequence.)
Flash memory 714 stores to perform the program of the various processing sequences of microcomputer 707.Microcomputer 707
The control of camera entirety is carried out according to the program.In addition, flash memory 714 stores the various adjusted values of camera, microcomputer 707 is read
Adjusted value carries out the control of camera according to the adjusted value.
SDRA 708 be for image data etc. temporarily stored can electricity rewrite volatile memory.It should
SDRA708 temporarily storages are from the image data of the output of A/D converter sections 704 and in image processor 705, jpeg processor 706 etc.
In the image data that carried out that treated.
Memory interface 709 is connected with recording medium 715, into the file be about to image data He be attached in image data
First-class data write-in recording medium 715 and the control read from recording medium 715.Recording medium 715 is, for example, can be in phase
The recording mediums such as memory card of disassembled and assembled freely on owner's body, however it is without being limited thereto or be built in camera main-body
Hard disk etc..
LCD driver 710 is connected with LCD716, will by image processor 705, treated that image data is stored in SDRA,
When needing display, read the image data of SDRA storages and shown on LCD716, alternatively, jpeg processor 706 is compressed
Image data is stored in SDRA, when needing display, the compressed image data of the reading of jpeg processor 706 SDRA, then into
Row decompression, the image data after decompression is shown by LCD716.
LCD716 is configured on back side of camera main-body etc., is performed image display.The LCD716 is equipped with touching for detection user
Touch the touch panel of operation.In addition, as display unit, what is configured in the present embodiment is that liquid crystal represents panel (LCD716), so
And it is without being limited thereto, the various display panels such as organic EL can also be used.
Based on above-mentioned mobile terminal and camera hardware structure, each embodiment of the method for the present invention is proposed.
Fig. 3 is the flow chart for the method that the embodiment of the present invention realizes image taking, as shown in figure 3, including：
When step 300, the main body being taken are in relative static conditions, with the first default step-length increase exposure value；
Wherein, the embodiment of the present invention first preset step-length can be according to camera parameter (the adjustable area including exposure value
Between), user shoot custom etc. be configured；Generally, a default value, user can be set based on experience value by technical staff
The adjustment of the second default step-length is carried out based on default value；Such as when the exposure value of mobile terminal can adjust section as a quarter
When second is to six a ten thousandth seconds, the first default step-length set by default with 10,000 liang of signas carries out increase exposure value
Adjustment；In addition, the embodiment of the present invention can also be adjusted the first default step-length by default interactive interface, Fig. 4 is
The user interface schematic diagram that the embodiment of the present invention is adjusted the first default step-length, as shown in figure 4, in order to allow user couple
Parameter has an apparent understanding, and the second row of input frame in Fig. 4 shows that default value for 10,000 liang of signas, is shown simultaneously
The adjustable section for having shown exposure value is a quarter second to six a ten thousandth seconds；User is referred to above-mentioned parameter and practical application
Shooting speed requirement of the scene to motion state main body, the default step-length of adjustment first；The embodiment of the present invention can carry out input frame
In denominator numerical value modify to adjust the size of the first default step-length.
It should be noted that the process of adjustment exposure value of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can efficiently realize the shooting of image.
It should be noted that the process of adjustment exposure value of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can quickly realize the shooting of image.
Optionally, when can also include before step 300 of the embodiment of the present invention, absorb image, the main body being taken is judged
Whether relative static conditions are in；Wherein, the embodiment of the present invention is in the main bodys of relative static conditions and can include：Keep specific
The personage of posture, and/or keep opposing stationary object；Such as keep the personage of particular pose that can include：It keeps quite simultaneously
The youth of smile, the child in sleep, the student thought deeply, the old for staring a distant place etc.；Keep opposing stationary
Object can include：The setting sun when cup on fruit, desk in fruit basket, morning, the flower to burst forth under no-wind environment etc.；
Relative static conditions of the embodiment of the present invention generally comprise the movement less than certain amplitude, and the judgement mark in correlation technique may be employed
Standard is judged；Relative static conditions of the embodiment of the present invention generally comprise the movement more than certain amplitude, and related skill may be employed
Criterion in art is judged；
In addition, the embodiment of the present invention may be employed whether method in correlation technique is in opposing stationary to the main body being taken
State is judged；Such as using image matching algorithm to keeping the personage of particular pose or keeping opposing stationary object
Judge, image matching algorithm can include：Feature (shuf, Speeded the Up Robust with robustness accelerated
Feature) algorithm, Harris algorithms, shift algorithms, absolute equilibrium search (ABS, Absolute Balance Search) are calculated
One of them or the image processing method that is combined by two or more algorithms such as method；Above-mentioned algorithm is to have in correlation technique
Algorithm, during comprising many algorithms, the combination of algorithm can also use existing processing mode in correlation technique be handled.
Optionally, increase of embodiment of the present invention exposure value can include：
When the main body being taken is in relative static conditions, since the minimum value of exposure value, increased with the first default step-length
Make light value public.
Step 301 analyzes the image obtained during increase exposure value, meets preset quality requirement until analysis obtains
Image when, stop increase exposure value；
It should be noted that the embodiment of the present invention judges whether image meets the process of preset quality requirement, may be employed
The judgement processing method included in itself inside mobile terminal is realized.
Optionally, carrying out analysis to the image obtained during increase exposure value includes：
When each time with the first default step-length increase exposure value, the image obtained after increase exposure value is made whether respectively
Meet the analysis of preset quality requirement.
The image for meeting preset quality requirement that step 302, shooting analysis obtain.
Optionally, if exposure value is increased to maximum, and the image for obtaining and meeting preset quality requirement is not analyzed, this
Inventive embodiments method further includes：
Exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Image taking is carried out during with the second default step-length increase sensitivity.
Wherein, the embodiment of the present invention second preset step-length can according to camera parameter (the adjustable section including ISO), use
Family shooting custom etc. is configured；Generally, a default value can based on experience value be set by technical staff, user is based on silent
Recognize the adjustment that value carries out the second default step-length；Such as when the ISO of mobile terminal can adjust section for 50~3200 when, using 1 as
The default step-length of the second of default setting carries out the adjustment of increase ISO；In addition, the embodiment of the present invention can also pass through default interaction
Interface is adjusted the second default step-length, and Fig. 5 is the user interaction that the embodiment of the present invention is adjusted the second default step-length
Interface schematic diagram, as shown in figure 5, in order to which user is allowed to have apparent understanding to parameter, the input frame latter half in Fig. 5 is shown
It is 1 to have shown default value, while shows the adjustable section of ISO for 50~3200；User is referred to above-mentioned parameter and reality should
With shooting speed requirement of the scene to motion state main body, step-length is preset in adjustment second, such as 5 are manually entered in input frame,
After adjusting, the numerical value that ISO increases adjustment each time is 5；If concrete numerical value is not inputted in input frame, the embodiment of the present invention
The increase that default value carries out ISO can be used to adjust.
It should be noted that the process of adjustment sensitivity of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can quickly realize the shooting of image.
Optionally, included with the second default step-length increase sensitivity：
Since the minimum value of photosensitive value, with the second default step-length increase sensitivity；
Optionally, image taking is carried out during sensitivity is increased includes：
When each time with the second default step-length increase sensitivity, the image obtained after increase sensitivity is analyzed；Point
When the image obtained after analysis acquisition increase sensitivity meets preset quality requirement, stop increase photosensitive value, and to analysis acquisition
The image for meeting preset quality requirement is shot；When sensitivity is increased to maximum, if analysis does not obtain satisfaction in advance yet
If the image of quality requirement, shooting sensitivity is maximum and when exposure value is maximum obtains image.
Optionally, the embodiment of the present invention can also be determined whether by a switch using present invention method, false
It, then can be true by a default switch key if image capturing method of the embodiment of the present invention is referred to as shutter priority method
Fixed whether to open shutter priority, Fig. 6 is the user interface schematic diagram that the embodiment of the present invention opens shutter priority, such as Fig. 6 institutes
Show, the processing that can realize whether shutter priority is opened is switched by the boolean set in Fig. 6, when opening shutter priority, is pressed
Image taking is carried out according to present invention method, when not opening shutter priority, according to existing image pickup method in correlation technique
Carry out image taking；
Optionally, the embodiment of the present invention can also include：With reference to other acquisition parameters in addition to sensitivity and exposure value
Carry out image taking；Other acquisition parameters can include the parameter manually or automatically set, such as whether open flash lamp, be
Whether no continuous shooting is shot using the mode of high dynamic range images (High-Dynaic Range, abbreviation HDR).
The embodiment of the present invention carries out image taking by exposure value adjust automatically, avoids the influence of manual setting acquisition parameters
Shooting efficiency；Whether preset quality requirement is met by the image for judging to obtain, ensure that the shooting quality of image.
Fig. 7 is the flow chart for the method that another embodiment of the present invention realizes image taking, as shown in fig. 7, comprises：
When step 700, intake image, judge the main body being taken whether in relative static conditions；
Wherein, the embodiment of the present invention is in the main bodys of relative static conditions and can include：The personage of holding particular pose,
And/or keep opposing stationary object；Such as keep the personage of particular pose that can include：The youth that keeps quite and smile,
Child in sleep, the student thought deeply, the old for staring a distant place etc.；Keep opposing stationary object that can wrap
It includes：The setting sun when cup on fruit, desk in fruit basket, morning, the flower to burst forth under no-wind environment etc.；The embodiment of the present invention
Relative static conditions generally comprise the movement less than certain amplitude, and the criterion that may be employed in correlation technique is judged；
Relative static conditions of the embodiment of the present invention generally comprise the movement more than certain amplitude, and the judgement mark in correlation technique may be employed
Standard is judged；
In addition, the embodiment of the present invention may be employed whether method in correlation technique is in opposing stationary to the main body being taken
State is judged；Such as using image matching algorithm to keeping the personage of particular pose or keeping opposing stationary object
Judge, image matching algorithm can include：Feature (shuf, Speeded the Up Robust with robustness accelerated
Feature) algorithm, Harris algorithms, shift algorithms, absolute equilibrium search (ABS, Absolute Balance Search) are calculated
One of them or the image processing method that is combined by two or more algorithms such as method；Above-mentioned algorithm is to have in correlation technique
Algorithm, during comprising many algorithms, the combination of algorithm can also use existing processing mode in correlation technique be handled.
When step 701, the main body being taken are in relative static conditions, with the first default step-length increase exposure value；
Wherein, the embodiment of the present invention first preset step-length can be according to camera parameter (the adjustable area including exposure value
Between), user shoot custom etc. be configured；Generally, a default value, user can be set based on experience value by technical staff
The adjustment of the second default step-length is carried out based on default value；Such as when the exposure value of mobile terminal can adjust section as a quarter
When second is to six a ten thousandth seconds, the first default step-length set by default with 10,000 liang of signas carries out increase exposure value
Adjustment.
It should be noted that the process of adjustment exposure value of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can quickly realize the shooting of image.
Optionally, increase of embodiment of the present invention exposure value can include：
When the main body being taken is in relative static conditions, since the minimum value of exposure value, increased with the first default step-length
Make light value public.
Step 702 analyzes the image obtained during increase exposure value, meets preset quality requirement until analysis obtains
Image when, stop increase exposure value；
It should be noted that the embodiment of the present invention judges whether image meets the process of preset quality requirement, may be employed
The judgement processing method included in itself inside mobile terminal is realized.
Optionally, carrying out analysis to the image obtained during increase exposure value includes：
When each time with the first default step-length increase exposure value, the image obtained after increase exposure value is made whether respectively
Meet the analysis of preset quality requirement.
The image for meeting preset quality requirement that step 703, shooting analysis obtain.
If step 704, exposure value are increased to maximum, and do not analyze the image for obtaining and meeting preset quality requirement,
Exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Step 705 carries out image taking during with the second default step-length increase sensitivity.
Wherein, the embodiment of the present invention second preset step-length can according to camera parameter (the adjustable section including ISO), use
Family shooting custom etc. is configured；Generally, a default value can based on experience value be set by technical staff, user is based on silent
Recognize the adjustment that value carries out the second default step-length；Such as when the ISO of mobile terminal can adjust section for 50~3200 when, using 1 as
The default step-length of the second of default setting carries out the adjustment of increase ISO.
Optionally, included with the second default step-length increase sensitivity：
Since the minimum value of photosensitive value, with the second default step-length increase sensitivity；
Optionally, image taking is carried out during sensitivity is increased includes：
When each time with the second default step-length increase sensitivity, the image obtained after increase sensitivity is analyzed；Point
When the image obtained after analysis acquisition increase sensitivity meets preset quality requirement, stop increase photosensitive value, and to analysis acquisition
The image for meeting preset quality requirement is shot；When sensitivity is increased to maximum, if analysis does not obtain satisfaction in advance yet
If the image of quality requirement, shooting sensitivity is maximum and when exposure value is maximum obtains image.
Optionally, the embodiment of the present invention can also be determined whether by a switch using present invention method, false
It, then can be true by a default switch key if image capturing method of the embodiment of the present invention is referred to as shutter priority method
It is fixed whether to open shutter priority；
Optionally, the embodiment of the present invention can also include：With reference to other acquisition parameters in addition to sensitivity and exposure value
Carry out image taking；Other acquisition parameters can include the parameter manually or automatically set, such as whether open flash lamp, be
Whether no continuous shooting is shot using the mode of high dynamic range images (High-Dynaic Range, abbreviation HDR).
The embodiment of the present invention carries out image taking by exposure value adjust automatically, avoids the influence of manual setting acquisition parameters
Shooting efficiency；Whether preset quality requirement is met by the image for judging to obtain, ensure that the shooting quality of image.
Fig. 8 is a kind of structure diagram of terminal of the embodiment of the present invention, as shown in figure 8, including：Exposure adjusting unit, analysis
Processing unit and shooting unit；Wherein,
Exposure adjusting unit is used for, and when the main body being taken is in relative static conditions, is exposed with the first default step-length increase
Light value；
Wherein, the embodiment of the present invention first preset step-length can be according to camera parameter (the adjustable area including exposure value
Between), user shoot custom etc. be configured；Generally, a default value, user can be set based on experience value by technical staff
The adjustment of the second default step-length is carried out based on default value；Such as when the exposure value of mobile terminal can adjust section as a quarter
When second is to six a ten thousandth seconds, the first default step-length set by default with 10,000 liang of signas carries out increase exposure value
Adjustment；
It should be noted that the process of adjustment exposure value of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can quickly realize the shooting of image.
Optionally, exposure adjusting unit is specifically used for,
When the main body being taken is in relative static conditions, since the minimum value of exposure value, increased with the first default step-length
Make light value public.
Optionally, the embodiment of the present invention can also include：
Whether judging unit is used for, when absorbing image, judge the main body being taken in relative static conditions；
Wherein, the embodiment of the present invention is in the main bodys of relative static conditions and can include：The personage of holding particular pose,
And/or keep opposing stationary object；Such as keep the personage of particular pose that can include：The youth that keeps quite and smile,
Child in sleep, the student thought deeply, the old for staring a distant place etc.；Keep opposing stationary object that can wrap
It includes：The setting sun when cup on fruit, desk in fruit basket, morning, the flower to burst forth under no-wind environment etc.；The embodiment of the present invention
Relative static conditions generally comprise the movement less than certain amplitude, and the criterion that may be employed in correlation technique is judged；
Relative static conditions of the embodiment of the present invention generally comprise the movement more than certain amplitude, and the judgement mark in correlation technique may be employed
Standard is judged；
In addition, the embodiment of the present invention may be employed whether method in correlation technique is in opposing stationary to the main body being taken
State is judged；Such as using image matching algorithm to keeping the personage of particular pose or keeping opposing stationary object
Judge, image matching algorithm can include：Feature (shuf, Speeded the Up Robust with robustness accelerated
Feature) algorithm, Harris algorithms, shift algorithms, absolute equilibrium search (ABS, Absolute Balance Search) are calculated
One of them or the image processing method that is combined by two or more algorithms such as method；Above-mentioned algorithm is to have in correlation technique
Algorithm, during comprising many algorithms, the combination of algorithm can also use existing processing mode in correlation technique be handled.
Analysis and processing unit is used for, and the image obtained during increase exposure value is analyzed, is met in advance until analysis obtains
If during the image of quality requirement, stop increase exposure value；
Optionally, analysis and processing unit is specifically used for,
When each time with the first default step-length increase exposure value, the image obtained after increase exposure value is made whether respectively
Meet the analysis of preset quality requirement, and when analysis obtains and meets the image of preset quality requirement, stop increase exposure value.
Wherein, the embodiment of the present invention judges whether image meets the process of preset quality requirement, and mobile terminal may be employed
The judgement processing method that inside includes in itself is realized.
Shooting unit is used for, the image for meeting preset quality requirement that shooting analysis obtains.
Optionally, terminal of the embodiment of the present invention further includes：
Photosensitive adjustment unit is increased to maximum for exposure value, and does not analyze acquisition and meet preset quality requirement
During image, exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Wherein, the embodiment of the present invention second preset step-length can according to camera parameter (the adjustable section including ISO), use
Family shooting custom etc. is configured；Generally, a default value can based on experience value be set by technical staff, user is based on silent
Recognize the adjustment that value carries out the second default step-length；Such as when the ISO of mobile terminal can adjust section for 50~3200 when, using 1 as
The default step-length of the second of default setting carries out the adjustment of increase ISO.
Shooting unit is additionally operable to, and image taking is carried out during with the second default step-length increase sensitivity.
Optionally, photosensitive adjustment unit is specifically used for, since the minimum value of photosensitive value, with the second default step-length increase sense
Luminosity；
Analysis and processing unit is additionally operable to, when increasing sensitivity according to the second default step-length each time, after increase sensitivity
The image of acquisition is analyzed；When analysis, which obtains the image obtained after increase sensitivity, meets preset quality requirement, stop
Increase photosensitive value；
It should be noted that when analysis obtains the image obtained after increase sensitivity and meets preset quality requirement, clap
Unit is taken the photograph to shoot the image for meeting preset quality requirement.
Shooting unit is additionally operable to, and when sensitivity is increased to maximum, is expired if analysis and processing unit is not analyzed yet
The image of sufficient preset quality requirement, the image obtained when shooting sensitivity is maximum and exposure value is maximum.
Optionally, the embodiment of the present invention can also include a switch unit, determine whether to open for passing through a switch
Use exposure adjusting unit；When exposure adjusting unit of the embodiment of the present invention is not activated, subsequent processing will be stopped；
Optionally, the embodiment of the present invention can also include：With reference to other acquisition parameters in addition to sensitivity and exposure value
Carry out image taking；Other acquisition parameters can include the parameter manually or automatically set, such as whether open flash lamp, be
Whether no continuous shooting is shot using the mode of high dynamic range images (High-Dynaic Range, abbreviation HDR).
The embodiment of the present invention carries out image taking by exposure value adjust automatically, avoids the influence of manual setting acquisition parameters
Shooting efficiency；Whether preset quality requirement is met by the image for judging to obtain, ensure that the shooting quality of image.
The embodiment of the present invention further includes a kind of terminal, including：Judging unit, exposure adjusting unit, photosensitive adjustment unit, point
Analyse processing unit and shooting unit；Wherein,
Whether judging unit is used for, when absorbing image, judge the main body being taken in relative static conditions；
Wherein, the embodiment of the present invention is in the main bodys of relative static conditions and can include：The personage of holding particular pose,
And/or keep opposing stationary object；Such as keep the personage of particular pose that can include：The youth that keeps quite and smile,
Child in sleep, the student thought deeply, the old for staring a distant place etc.；Keep opposing stationary object that can wrap
It includes：The setting sun when cup on fruit, desk in fruit basket, morning, the flower to burst forth under no-wind environment etc.；The embodiment of the present invention
Relative static conditions generally comprise the movement less than certain amplitude, and the criterion that may be employed in correlation technique is judged；
Relative static conditions of the embodiment of the present invention generally comprise the movement more than certain amplitude, and the judgement mark in correlation technique may be employed
Standard is judged；
In addition, the embodiment of the present invention may be employed whether method in correlation technique is in opposing stationary to the main body being taken
State is judged；Such as using image matching algorithm to keeping the personage of particular pose or keeping opposing stationary object
Judge, image matching algorithm can include：Feature (shuf, Speeded the Up Robust with robustness accelerated
Feature) algorithm, Harris algorithms, shift algorithms, absolute equilibrium search (ABS, Absolute Balance Search) are calculated
One of them or the image processing method that is combined by two or more algorithms such as method；Above-mentioned algorithm is to have in correlation technique
Algorithm, during comprising many algorithms, the combination of algorithm can also use existing processing mode in correlation technique be handled.
Exposure adjusting unit is used for, and when the main body being taken is in relative static conditions, is exposed with the first default step-length increase
Light value；
Wherein, the embodiment of the present invention first preset step-length can be according to camera parameter (the adjustable area including exposure value
Between), user shoot custom etc. be configured；Generally, a default value, user can be set based on experience value by technical staff
The adjustment of the second default step-length is carried out based on default value；Such as when the exposure value of mobile terminal can adjust section as a quarter
When second is to six a ten thousandth seconds, the first default step-length set by default with 10,000 liang of signas carries out increase exposure value
Adjustment.
It should be noted that the process of adjustment exposure value of the embodiment of the present invention is the processing procedure in terms of Millisecond, therefore,
It can quickly realize the shooting of image.
Optionally, exposure adjusting unit is specifically used for,
When the main body being taken is in relative static conditions, since the minimum value of exposure value, increased with the first default step-length
Make light value public.
Photosensitive adjustment unit is increased to maximum for exposure value, and does not analyze acquisition and meet preset quality requirement
During image, exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Wherein, the embodiment of the present invention second preset step-length can according to camera parameter (the adjustable section including ISO), use
Family shooting custom etc. is configured；Generally, a default value can based on experience value be set by technical staff, user is based on silent
Recognize the adjustment that value carries out the second default step-length；Such as when the ISO of mobile terminal can adjust section for 50~3200 when, using 1 as
The default step-length of the second of default setting carries out the adjustment of increase ISO.
Optionally, photosensitive adjustment unit is specifically used for, since the minimum value of photosensitive value, with the second default step-length increase sense
Luminosity；
Optionally, analysis and processing unit is used for,
When each time with the first default step-length increase exposure value, the image obtained after increase exposure value is made whether respectively
Meet the analysis of preset quality requirement, and when analysis obtains and meets the image of preset quality requirement, stop increase exposure value；
When each time according to the second default step-length increase sensitivity, the image obtained after increase sensitivity is analyzed；
When analysis, which obtains the image obtained after increase sensitivity, meets preset quality requirement, stop increase photosensitive value；
Wherein, the embodiment of the present invention judges whether image meets the process of preset quality requirement, and mobile terminal may be employed
The judgement processing method that inside includes in itself is realized.
Shooting unit is used for, the image for meeting preset quality requirement that shooting analysis obtains.
Shooting unit is additionally operable to, and when sensitivity is increased to maximum, is expired if analysis and processing unit is not analyzed yet
The image of sufficient preset quality requirement, the image obtained when shooting sensitivity is maximum and exposure value is maximum.
Optionally, the embodiment of the present invention can also include a switch unit, determine whether to open for passing through a switch
Use exposure adjusting unit；When exposure adjusting unit of the embodiment of the present invention is not activated, subsequent processing will be stopped；
Optionally, the embodiment of the present invention can also include：With reference to other acquisition parameters in addition to sensitivity and exposure value
Carry out image taking；Other acquisition parameters can include the parameter manually or automatically set, such as whether open flash lamp, be
Whether no continuous shooting is shot using the mode of high dynamic range images (High-Dynaic Range, abbreviation HDR).
The embodiment of the present invention carries out image taking by exposure value adjust automatically, avoids the influence of manual setting acquisition parameters
Shooting efficiency；Whether preset quality requirement is met by the image for judging to obtain, ensure that the shooting quality of image.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can be stored in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, all or part of step of above-described embodiment can also be come using one or more integrated circuits
It realizes.Correspondingly, the form realization of hardware may be employed in each module/unit in above-described embodiment, such as passes through integrated electricity
Its corresponding function is realized on road, can also be realized in the form of software function module, such as is stored in by processor execution
Program/instruction in memory realizes its corresponding function.The present invention is not limited to the hardware and softwares of any particular form
With reference to.
Although disclosed herein embodiment as above, the content only for ease of understanding the present invention and use
Embodiment is not limited to the present invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
On the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of terminal, which is characterized in that including：Exposure adjusting unit, analysis and processing unit and shooting unit；Wherein,
Exposure adjusting unit is used for, when the main body being taken is in relative static conditions, with the first default step-length increase exposure value；
Analysis and processing unit is used for, and the image obtained during increase exposure value is analyzed, and meets default matter until analysis obtains
When measuring the image of requirement, stop increase exposure value；
Shooting unit is used for, the image for meeting preset quality requirement that shooting analysis obtains.
2. terminal according to claim 1, which is characterized in that the terminal further includes：
Photosensitive adjustment unit is increased to maximum for the exposure value, and do not analyze acquisition meet the preset quality will
During the image asked, the exposure value is kept in maximum, and with the second default step-length increase sensitivity；
The shooting unit is additionally operable to, and image taking is carried out during with the second default step-length increase sensitivity.
3. terminal according to claim 1 or 2, which is characterized in that the exposure adjusting unit is specifically used for,
When the main body being taken is in relative static conditions, since the minimum value of the exposure value, with the described first default step
Long increase exposure value.
4. terminal according to claim 2, which is characterized in that the analysis and processing unit is specifically used for,
When increasing the exposure value each time with the described first default step-length, the image obtained after increase exposure value is carried out respectively
Whether meet the analysis of the preset quality requirement, and when analysis obtains and meets the image of preset quality requirement, stop increase
Exposure value.
5. terminal according to claim 2, which is characterized in that the photosensitive adjustment unit is specifically used for, from described photosensitive
The minimum value of value starts, with the described second default step-length increase sensitivity；
The analysis and processing unit is additionally operable to, photosensitive to increasing when increasing sensitivity according to the described second default step-length each time
The image obtained after degree is analyzed；Meet the preset quality requirement until analysis obtains the image obtained after increase sensitivity
When, stop increase photosensitive value；
The shooting unit is additionally operable to, and when sensitivity is increased to maximum, is expired if analysis and processing unit is not analyzed yet
The image of the foot preset quality requirement, the image obtained when shooting sensitivity is maximum and exposure value is maximum.
A kind of 6. method for realizing image taking, which is characterized in that including：
When the main body being taken is in relative static conditions, with the first default step-length increase exposure value；
The image obtained during increase exposure value is analyzed, when analysis, which obtains, meets the image of preset quality requirement, is stopped
Only increase exposure value；
The image for meeting preset quality requirement that shooting analysis obtains.
7. if according to the method described in claim 6, it is characterized in that, the exposure value is increased to maximum, and do not divide
Analysis obtains the image for meeting the preset quality requirement, and the method further includes：
The exposure value is kept in maximum, and with the second default step-length increase sensitivity；
Image taking is carried out during the sensitivity is increased with the second default step-length.
8. the method according to claim 6 or 7, which is characterized in that the increase exposure value includes：
When the main body being taken is in relative static conditions, since the minimum value of the exposure value, with the described first default step
Long increase exposure value.
9. the method according to the description of claim 7 is characterized in that the image obtained during described pair of increase exposure value is analyzed
Including：
When increasing the exposure value each time with the described first default step-length, the image obtained after increase exposure value is carried out respectively
Whether the analysis of the preset quality requirement is met.
10. the method according to the description of claim 7 is characterized in that described included with the second default step-length increase sensitivity：
Since the minimum value of the photosensitive value, with the described second default step-length increase sensitivity；
The image taking that carried out during sensitivity is increased includes：
When each time according to the described second default step-length increase sensitivity, the image obtained after increase sensitivity is analyzed；
When the image obtained after analysis acquisition increase sensitivity meets the preset quality requirement, stop increase photosensitive value, and to analysis
The image for meeting the preset quality requirement obtained is shot；When sensitivity is increased to maximum, if do not analyzed yet
Obtain the image for meeting the preset quality requirement, the figure obtained when shooting sensitivity is maximum and exposure value is maximum
Picture.
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Cited By (1)
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| US11233948B2 (en) | 2018-08-22 | 2022-01-25 | Shenzhen Heytap Technology Corp., Ltd. | Exposure control method and device, and electronic device |
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