CN107360342A - The processing method and mobile terminal of a kind of view data - Google Patents
The processing method and mobile terminal of a kind of view data Download PDFInfo
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- CN107360342A CN107360342A CN201710528142.9A CN201710528142A CN107360342A CN 107360342 A CN107360342 A CN 107360342A CN 201710528142 A CN201710528142 A CN 201710528142A CN 107360342 A CN107360342 A CN 107360342A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
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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
- H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
- H04N23/811—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation by dust removal, e.g. from surfaces of the image sensor or processing of the image signal output by the electronic image sensor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
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Abstract
The embodiments of the invention provide a kind of processing method of view data and mobile terminal, the mobile terminal includes the digital signal processor DSP being connected with camera and image-signal processor ISP, and methods described includes：Obtain the view data of camera output；The DSP carries out image procossing to described image data and obtains original data；The original data is sent to ISP；The ISP carries out image procossing to the original data and obtains final image data.In the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, the embodiment of the present invention allow before view data enters ISP, the image procossing that front end carries out view data can be carried out one step ahead, obtain being then forwarded to rear end ISP after the original data of more preferable quality and be further processed, the view data of better quality can may finally be obtained so as to reduce the deterioration for the noise structural form that ISP processing in rear end introduces to greatest extent.
Description
Technical field
The present invention relates to communication technical field, more particularly to the processing method and mobile terminal of a kind of view data.
Background technology
Existing mobile terminal is increasingly valued camera and taken pictures the performance of imaging effect, the noise of image and definition, this
A little prime competing factors for also increasingly becoming businessman.
The image processing techniques of the platform processor manufacturer of mobile terminal is different in detail at present, but in general side
Method is：RGB, YUV etc. are obtained carrying out image procossing by ISP (Image Signal Processing, picture signal processing)
After the view data of form, the denoising of view data and the lifting of definition are carried out.
Although view data, can be by Gauss-Poisson model after sensor (sensor) outputs in camera module
To carry out data description, but after image procossing is carried out by ISP, the noise characteristic of view data becomes more complicated, it is difficult to
Processing, influences final image quality.
The content of the invention
The embodiment of the present invention provides a kind of method and mobile terminal of view data, to solve view data in ISP processing
Afterwards, the noise characteristic of view data becomes complicated, the problem of causing final image of low quality.
First aspect, there is provided a kind of processing method of view data, applied to mobile terminal, the mobile terminal includes
The digital signal processor DSP being connected with camera and image-signal processor ISP, methods described include：
Obtain the view data of camera output；
The DSP carries out image procossing to described image data and obtains original data；
The original data is sent to ISP；
The ISP carries out image procossing to the original data and obtains final image data.
Second aspect, there is provided a kind of mobile terminal, the mobile terminal include and camera and image-signal processor
The digital signal processor DSP that ISP is connected, the mobile terminal include：
Image data acquisition module, for obtaining the view data of camera output；
Original data obtains module, and carrying out image procossing to described image data for the DSP obtains initial graph
As data；
Original data sending module, for the original data to be sent to ISP；
Final image data obtain module, are obtained for carrying out image procossing to the original data in the ISP
Final image data.
So, in the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, make
The image that front end carries out view data can one step ahead be carried out before view data enters ISP by obtaining the embodiment of the present invention
Processing, obtains being then forwarded to rear end ISP after the original data of more preferable quality and is further processed, can be so as to maximum limit
Degree reduces the deterioration for the noise structural form that ISP processing in rear end introduces, and may finally obtain the view data of better quality.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of step flow chart of the processing method embodiment of view data of the embodiment of the present invention one；
Fig. 2 is a kind of image processing flow figure based on DSP and ISP of the present invention；
Fig. 3 is a kind of structured flowchart of mobile terminal embodiment of the embodiment of the present invention two；
Fig. 4 is the block diagram of the mobile terminal of another embodiment of the present invention；
Fig. 5 is the structural representation of the mobile terminal of another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Embodiment one
Reference picture 1, a kind of step flow chart of the processing method embodiment of view data of the present invention is shown, is applied to
Mobile terminal, the mobile terminal include the digital signal processor being connected with camera and image-signal processor ISP
DSP, methods described specifically may include steps of：
Step 101, the view data of camera output is obtained.
In the specific implementation, having camera on mobile terminals, it can also be two that the quantity of camera, which can be one,
It is individual, naturally it is also possible to be three or more than three.The embodiment of the present invention on the basis of the hardware frame of original mobile terminal,
Add DSP (Digital Signal Processing, digital signal processor) so that view data enter ISP before,
More image procossings can be carried out, lift the picture quality of view data.
It should be noted that the embodiment of the present invention on the basis of the hardware frame of original mobile terminal, adds DSP
(Digital Signal Processing, digital signal processor) so that view data is entering ISP (Image Signal
Processing, picture signal processing) before, more image processing functions can be realized, lift the image matter of view data
Amount.Specifically, there is sensor (sensor) in the camera module of camera, be provided with and camera in mobile terminal
The DSP that sensor is connected with ISP.Generally, the list that ISP is handled as the sensor output signals of camera in the terminal
Member, to match the sensor of different vendor.
Wherein, between DSP, sensor and ISP, MIPI (Mobile Industry Processor can be passed through
Interface, mobile Industry Processor Interface) connection, MIPI by the interface of interior of mobile phone such as camera, display screen interface, penetrate
Frequently/baseband interface etc. standardizes, it is possible to reduce the complexity and increase design flexibility of Cell Phone Design.Certainly, DSP,
It can also be attached between sensor and ISP by other interfaces, the embodiment of the present invention need not be any limitation as to this.
The DSP hardware module of the embodiment of the present invention, be RAW sections (such as to for the forms such as Bayer format RAW figure
As being handled, RAW image does not carry out being converted into the forms such as YUV due in ISP, therefore data volume is more, and detailed information is rich
It is rich) view data carry out the operation such as denoising, allow view data before ISP is entered, just there is relatively good noise performance, and
View data is handled by DSP, speed is fast for being handled in ISP, and in DSP many algorithms realization can also be used more
Kind function.By being pre-processed in DSP for view data, reduce in ISP processing procedures, reduce back-end processing difficulty,
Finally give better image quality.
ISP be can be integrated in it is in AP (Application Processor, application processor) or independent
Chip, the embodiment of the present invention need not be any limitation as to this, retransmited and carried out at ISP after DSP obtains the RAW image of result
Reason so that view data becomes apparent from, be natural and attractive in appearance.
Step 102, the DSP carries out image procossing to described image data and obtains original data.
In one preferred embodiment of the invention, before the step 102, following steps can also be carried out：
Dark current compensation is carried out to described image data；
Camera lens attenuation compensation is carried out to the view data after the progress dark current compensation；
Compensating bad point is carried out to the view data after the progress camera lens attenuation compensation.
In embodiments of the present invention, for the view data of camera output, can be carried out in advance before DSP is output to
Image procossing, these image procossings are specially respectively：
Dark current compensation：The photosensitive value of sensor photodiode is calculated under total darkness environment, removes sensor outputs
The analog-to-digital conversion offset that data carry, improve colour cast problems of the sensor under half-light.
Camera lens attenuation compensation：Pass through the calibration under uniform light, the luminance difference of calculating cam lens margin and center
It is different, by increasing digital gain, the problem of improving lens edge luminance shortage.
Compensating bad point：By the test under completely black and uniform luminance light, finding in module sensor normally to enter
The diode of row luminous point conversion, it is then photosensitive by the difference arithmetic of adjacent pixel, these diodes of solution module sensor again
Abnormal problem, finally remove the stain or white point of fixed position in image.
In the embodiment of the present invention, the view data that DSP carries out image procossing is Bayer format.DSP is to the Bayer lattice
The view data of formula is handled to obtain original data.
Step 103, the original data is sent to ISP.
After DSP completions handle to obtain original data, by the original data by MIPI interfaces send to
ISP handle in next step.
Step 104, the ISP carries out image procossing to the original data and obtains final image data.
In one preferred embodiment of the invention, the step 104 may include steps of：
The ISP carries out AWB calibration to the original data；
Mosaic processing is removed to the original data after the progress AWB calibration；
To the original data being removed after mosaic processing using gamma algorithm lifting brightness of image；
Denoising is carried out to the original data after the lifting brightness of image；
High-pass filtering processing is carried out to the original data after the progress denoising；
Using the original data after progress high-pass filtering processing as final image data.
In embodiments of the present invention, the view data of DSP outputs can make further image procossing being output to ISP,
These image procossings are specially respectively：
AWB (AWB calibration)：By calculating number ratios relation corresponding to Gr, Gb, G of current image date,
The environment colour temperature of current shooting is estimated, and according to the result of estimation, carries out RGB gain compensations to view data, will now draw
Enter line noise.
Demosaic (removal demosaicing algorithm)：By the view data of bayer forms, calculated by the interpolation of vicinity points
Method, switch to the view data of rgb format, will now change the form of noise.
Gamma (gamma algorithm)：According to original physical brightness, different luminance gains (gain) are set, by original image
Brightness is lifted, and to meet that the subjective vision GTG of human eye is experienced, will now introduce nonlinear noise.
ISP denoising：By modes such as Wavelet Denoising Method or bilateral filterings, image denoising is carried out.
ISP improves definition module：By edge detection methods such as high-pass filterings, image border and profile details are found,
By digital gain (digital gain), the profile of original image is allowed to become apparent from.
In embodiments of the present invention, the adjustment of the calculating for brightness of image gain and the brightness for view data,
It can complete in dsp.After completion is adjusted in DSP, it can further be transferred to rear end ISP and carry out its follow-up elsewhere
Reason.Certainly, above-mentioned processing is also merely exemplary, is not construed as limitation of the present invention.
Need what is illustrated, in the prior art when no addition DSP, enter row interpolation using demosaic function pair images
Processing, can cause picture noise to become structure borne noise, after being handled using gamma functions or ToneMapping functions,
Picture noise is there occurs nonlinear change, and using awb, after digital gain functions, picture noise becomes there occurs linear again
Change.The irregular change of these structures and form, the denoising to rear end add difficulty.
In view of the above-mentioned problems, the embodiment of the present invention adds DSP hardware mould on the hardware structure of original mobile terminal
Block.After DSP hardware module is added so that before ISP handles image, in raw sections (i.e. for for Bayer format
View data) denoising and the lifting of definition are carried out to view data, allow view data just to have relatively good before ISP is entered
Noise performance, whole handling process is referred to Fig. 2.So as to reduce in ISP processing procedures, the deterioration to the form of noise,
Rear end noise processed difficulty is reduced, finally gives better image quality.
So, in the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, make
The image that front end carries out view data can one step ahead be carried out before view data enters ISP by obtaining the embodiment of the present invention
Processing, obtains being then forwarded to rear end ISP after the original data of more preferable quality and is further processed, can be so as to maximum limit
Degree reduces the deterioration for the noise structural form that ISP processing in rear end introduces, and may finally obtain the view data of better quality.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
Close, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to
According to the embodiment of the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
Embodiment two
Reference picture 3, show the present invention a kind of mobile terminal embodiment structured flowchart, the mobile terminal include with
The digital signal processor DSP that camera is connected with image-signal processor ISP, the mobile terminal can specifically be included such as
Lower module：
Image data acquisition module 201, for obtaining the view data of camera output；
Original data obtains module 202, and carrying out image procossing to described image data for the DSP obtains initially
View data；
Original data sending module 203, for the original data to be sent to ISP；
Final image data obtain module 204, and carrying out image procossing to the original data for the ISP obtains
Final image data.
In one preferred embodiment of the invention, the mobile terminal also includes：
Dark current compensation module, for carrying out dark current compensation to described image data；
Camera lens attenuation compensation module, mended for carrying out camera lens decay to the view data after the progress dark current compensation
Repay；
Compensating bad point module, for carrying out compensating bad point to the view data after the progress camera lens attenuation compensation.
In one preferred embodiment of the invention, described image data are Bayer format, and the original data obtains
Include to module 202：
Original data obtains submodule, and the view data of the Bayer format is carried out at image for the DSP
Reason obtains original data.
In one preferred embodiment of the invention, the final image data, which obtain module 204, includes：
AWB calibration module, AWB calibration is carried out to the original data for the ISP；
Mosaic processing module is removed, for being gone to the original data after the progress AWB calibration
Except mosaic processing；
Brightness of image hoisting module, for using gamma to the original data being removed after mosaic processing
Algorithm lifts brightness of image；
Denoising module, for carrying out denoising to the original data after the lifting brightness of image；
High-pass filtering processing module, for being carried out to the original data after the progress denoising at high-pass filtering
Reason；
Final image data obtain module, for using the original data after progress high-pass filtering processing as final figure
As data.
In one preferred embodiment of the invention, the DSP is connected to institute by mobile Industry Processor Interface MIPI
State between camera and the ISP.
For mobile terminal embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple,
The relevent part can refer to the partial explaination of embodiments of method.
So, in the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, make
The image that front end carries out view data can one step ahead be carried out before view data enters ISP by obtaining the embodiment of the present invention
Processing, obtains being then forwarded to rear end ISP after the original data of more preferable quality and is further processed, can be so as to maximum limit
Degree reduces the deterioration for the noise structural form that ISP processing in rear end introduces, and may finally obtain the view data of more preferable quality.
Embodiment three
Fig. 4 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 700 shown in Fig. 4 includes：At least
One processor 701, memory 702, at least one network interface 704 and other users interface 703.In mobile terminal 700
Each component is coupled by bus system 705.It is understood that bus system 705 is used to realize the company between these components
Connect letter.Bus system 705 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But
It is for the sake of clear explanation, various buses is all designated as bus system 705 in Fig. 4.
Wherein, user interface 703 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 702 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or it may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
OnlyMemory, ROM), programmable read only memory (ProgrammableROM, PROM), Erasable Programmable Read Only Memory EPROM
(ErasablePROM, EPROM), Electrically Erasable Read Only Memory (ElectricallyEPROM, EEPROM) dodge
Deposit.Volatile memory can be random access memory (RandomAccessMemory, RAM), and it is used as outside slow at a high speed
Deposit.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), Synchronous Dynamic Random Access Memory
(SynchronousDRAM, SDRAM), double data speed synchronous dynamic RAM (DoubleDataRate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus random access memory
(DirectRambusRAM, DRRAM).The memory 702 of the system and method for description of the embodiment of the present invention is intended to include but unlimited
In these memories with any other suitable type.
In some embodiments, memory 702 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 7021 and application program 7022.
Wherein, operating system 7021, comprising various system programs, such as ccf layer, core library layer, driving layer etc., it is used for
Realize various basic businesses and the hardware based task of processing.Application program 7022, include various application programs, such as media
Player (MediaPlayer), browser (Browser) etc., for realizing various applied business.Realize embodiment of the present invention side
The program of method may be embodied in application program 7022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 702, specifically, can be application
The program stored in program 7022 or instruction, processor 701 are used for the view data for obtaining camera output；The DSP is to institute
State view data progress image procossing and obtain original data；The original data is sent to ISP；In the ISP
Image procossing is carried out to the original data and obtains final image data.
The method that the embodiments of the present invention disclose can apply in processor 701, or be realized by processor 701.
Processor 701 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.Above-mentioned processing
Device 701 can be general processor, digital signal processor (DigitalSignalProcessor, DSP), application specific integrated circuit
(ApplicationSpecific IntegratedCircuit, ASIC), ready-made programmable gate array
(FieldProgrammableGateArray, FPGA) either other PLDs, discrete gate or transistor logic
Device, discrete hardware components.It can realize or perform disclosed each method, step and the box in the embodiment of the present invention
Figure.General processor can be microprocessor or the processor can also be any conventional processor etc..With reference to the present invention
The step of method disclosed in embodiment, can be embodied directly in hardware decoding processor and perform completion, or use decoding processor
In hardware and software module combination perform completion.Software module can be located at random access memory, and flash memory, read-only storage can
In the ripe storage medium in this area such as program read-only memory or electrically erasable programmable memory, register.The storage
Medium is located at memory 702, and processor 701 reads the information in memory 702, and the step of the above method is completed with reference to its hardware
Suddenly.
It is understood that the embodiment of the present invention description these embodiments can use hardware, software, firmware, middleware,
Microcode or its combination are realized.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits
(ApplicationSpecificIntegratedCircuits, ASIC), digital signal processor
(DigitalSignalProcessing, DSP), digital signal processing appts (DSPDevice, DSPD), programmable logic device
(ProgrammableLogicDevice, PLD), field programmable gate array (Field-ProgrammableGateArray,
FPGA), general processor, controller, microcontroller, microprocessor, other electronics lists for performing herein described function
In member or its combination.
For software realize, can by perform the module (such as process, function etc.) of function described in the embodiment of the present invention come
Realize the technology described in the embodiment of the present invention.Software code is storable in memory and passes through computing device.Memory can
To realize within a processor or outside processor.
Alternatively, processor 701 is additionally operable to：Dark current compensation is carried out to described image data；To the carry out dark current
View data after compensation carries out camera lens attenuation compensation；Bad point benefit is carried out to the view data after the progress camera lens attenuation compensation
Repay.
Alternatively, processor 701 is additionally operable to：The DSP carries out image procossing to the view data for Bayer format
Obtain original data.
Alternatively, processor 701 is additionally operable to：In the ISP, AWB school is carried out to the original data
It is accurate；Mosaic processing is removed to the original data after the progress AWB calibration；It is removed to described
Original data after mosaic processing is using gamma algorithm lifting brightness of image；To initial after the lifting brightness of image
View data carries out denoising；High-pass filtering processing is carried out to the original data after the progress denoising；It will enter
Original data after row high-pass filtering processing is as final image data.
Mobile terminal 700 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
So, in the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, make
The image that front end carries out view data can one step ahead be carried out before view data enters ISP by obtaining the embodiment of the present invention
Processing, obtains being then forwarded to rear end ISP after the original data of more preferable quality and is further processed, can be so as to maximum limit
Degree reduces the deterioration for the noise structural form that ISP processing in rear end introduces, and may finally obtain the view data of more preferable quality.
Example IV
Fig. 5 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile terminal in Fig. 5
800 can be mobile phone, tablet personal computer, personal digital assistant (PersonalDigital Assistant, PDA) or vehicle-mounted computer
Deng.
Mobile terminal 800 in Fig. 5 includes radio frequency (RadioFrequency, RF) circuit 810, memory 820, input list
Member 830, display unit 840, processor 860, voicefrequency circuit 870, WiFi (WirelessFidelity) module 880 and power supply
890。
Wherein, input block 830 can be used for the numeral or character information for receiving user's input, and generation and mobile terminal
The signal input that 800 user is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 830 can
With including contact panel 831.Contact panel 831, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses the operations of any suitable object or annex on contact panel 831 such as finger, stylus), and according to advance
The formula of setting drives corresponding attachment means.Optionally, contact panel 831 may include touch detecting apparatus and touch controller
Two parts.Wherein, the touch orientation of touch detecting apparatus detection user, and the signal that touch operation is brought is detected, by signal
Send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate,
Give the processor 860 again, and the order sent of reception processing device 860 and can be performed.Furthermore, it is possible to using resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize contact panel 831.Except contact panel 831, input block
830 can also include other input equipments 832, and other input equipments 832 can include but is not limited to physical keyboard, function key
One or more in (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 840 can be used for display by the information of user's input or be supplied to information and the movement of user
The various menu interfaces of terminal 800.Display unit 840 may include display panel 841, optionally, can use LCD or organic hairs
The forms such as optical diode (OrganicLight-EmittingDiode, OLED) configure display panel 841.
It should be noted that contact panel 831 can cover display panel 841, touch display screen is formed, when the touch display screen is examined
After measuring the touch operation on or near it, processor 860 is sent to determine the type of touch event, is followed by subsequent processing device
860 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 860 is the control centre of mobile terminal 800, utilizes various interfaces and connection whole mobile phone
Various pieces, by running or performing the software program and/or module that are stored in first memory 821, and call storage
Data in second memory 822, the various functions and processing data of mobile terminal 800 are performed, so as to mobile terminal 800
Carry out integral monitoring.Optionally, processor 860 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 821 in software program and/or module and/
Or the data in the second memory 822, processor 860 are used for the view data for obtaining camera output；The DSP is to described
View data carries out image procossing and obtains original data；The original data is sent to ISP；At described ISP pairs
The original data carries out image procossing and obtains final image data.
Alternatively, the processor 860 is additionally operable to, and dark current compensation is carried out to described image data；Carried out secretly to described
View data after current compensation carries out camera lens attenuation compensation；View data after the progress camera lens attenuation compensation is carried out bad
Point compensation.
Alternatively, the processor 860 is additionally operable to, and the DSP carries out image to the view data for Bayer format
Processing obtains original data.
Alternatively, the processor 860 is additionally operable to, and in the ISP, AWB is carried out to the original data
Calibration；Mosaic processing is removed to the original data after the progress AWB calibration；Gone to described
Except the original data after mosaic processing is using gamma algorithm lifting brightness of image；To first after the lifting brightness of image
Beginning view data carries out denoising；High-pass filtering processing is carried out to the original data after the progress denoising；Will
The original data after high-pass filtering processing is carried out as final image data.
For the embodiment of mobile terminal 800, because it is substantially similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
So, in the embodiment of the present invention, by increasing DSP hardware module on the original hardware frame of mobile terminal, make
The image that front end carries out view data can one step ahead be carried out before view data enters ISP by obtaining the embodiment of the present invention
Processing, obtains being then forwarded to rear end ISP after the original data of more preferable quality and is further processed, can be so as to maximum limit
Degree reduces the deterioration for the noise structural form that ISP processing in rear end introduces, and may finally obtain the view data of more preferable quality.
Those of ordinary skill in the art it is to be appreciated that with reference to disclosed in the embodiment of the present invention embodiment description it is each
The unit and algorithm steps of example, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of processing method of view data, applied to mobile terminal, it is characterised in that the mobile terminal includes and shooting
The digital signal processor DSP that head is connected with image-signal processor ISP, methods described include：
Obtain the view data of camera output；
The DSP carries out image procossing to described image data and obtains original data；
The original data is sent to ISP；
The ISP carries out image procossing to the original data and obtains final image data.
2. according to the method for claim 1, it is characterised in that the DSP carries out image procossing to described image data and obtained
The step of original data before, in addition to：
Dark current compensation is carried out to described image data；
Camera lens attenuation compensation is carried out to the view data after the progress dark current compensation；
Compensating bad point is carried out to the view data after the progress camera lens attenuation compensation.
3. according to the method for claim 2, it is characterised in that described image data are Bayer format, and the DSP is to institute
Stating the step of view data progress image procossing obtains original data includes：
The DSP carries out image procossing to the view data of the Bayer format and obtains original data.
4. according to the method for claim 1, it is characterised in that the ISP is carried out at image to the original data
The step of reason obtains final image data includes：
The ISP carries out AWB calibration to the original data；
Mosaic processing is removed to the original data after the progress AWB calibration；
To the original data being removed after mosaic processing using gamma algorithm lifting brightness of image；
Denoising is carried out to the original data after the lifting brightness of image；
High-pass filtering processing is carried out to the original data after the progress denoising；
Using the original data after progress high-pass filtering processing as final image data.
5. according to the method described in claim 1 or 2 or 3 or 4, it is characterised in that the DSP is connect by mobile Industry Processor
Mouth MIPI is connected between the camera and the ISP.
6. a kind of mobile terminal, it is characterised in that the mobile terminal includes being connected with camera and image-signal processor ISP
The digital signal processor DSP connect, the mobile terminal include：
Image data acquisition module, for obtaining the view data of camera output；
Original data obtains module, and carrying out image procossing to described image data for the DSP obtains initial pictures number
According to；
Original data sending module, for the original data to be sent to ISP；
Final image data obtain module, are obtained finally for carrying out image procossing to the original data in the ISP
View data.
7. mobile terminal according to claim 6, it is characterised in that also include：
Dark current compensation module, for carrying out dark current compensation to described image data；
Camera lens attenuation compensation module, for carrying out camera lens attenuation compensation to the view data after the progress dark current compensation；
Compensating bad point module, for carrying out compensating bad point to the view data after the progress camera lens attenuation compensation.
8. mobile terminal according to claim 7, it is characterised in that described image data are Bayer format, described initial
View data, which obtains module, to be included：
Original data obtains submodule, and carrying out image procossing to the view data of the Bayer format for the DSP obtains
To original data.
9. mobile terminal according to claim 6, it is characterised in that the final image data, which obtain module, to be included：
AWB calibration module, AWB calibration is carried out to the original data for the ISP；
Mosaic processing module is removed, for being removed horse to the original data after the progress AWB calibration
Sai Ke processing；
Brightness of image hoisting module, for using gamma algorithm to the original data being removed after mosaic processing
Lift brightness of image；
Denoising module, for carrying out denoising to the original data after the lifting brightness of image；
High-pass filtering processing module, for carrying out high-pass filtering processing to the original data after the progress denoising；
Final image data obtain module, for using the original data after progress high-pass filtering processing as final image number
According to.
10. according to the mobile terminal described in claim 6 or 7 or 8 or 9, it is characterised in that the DSP is by moving at industry
Reason device interface MIPI is connected between the camera and the ISP.
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