CN104113743B - Colour TV camera AWB processing method and processing device under low-light (level) - Google Patents
Colour TV camera AWB processing method and processing device under low-light (level) Download PDFInfo
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Abstract
The invention discloses colour TV camera AWB processing method and processing device under a kind of low-light (level), methods described includes：The mapping table between exposure parameter, ambient infrared light intensity and the infrared light image strength estimations of image is obtained by training；Pending image is obtained, and obtains the exposure parameter corresponding with the image, the detection infrared intensity information of current environment, current infrared light image strength estimations are obtained according to the exposure parameter, ambient infrared light strength information and mapping table in real time；Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；White balance correction is carried out on the processing image through going infrared influence processing to obtain.Using the present invention, the color distortion problem that can not effectively correct and cause due to the influence by infrared light during AWB under low light conditions can be avoided so that remain to obtain the good coloured image of quality under low-light (level).
Description
Technical field
It is automatically white in particular to colour TV camera under a kind of low-light (level) the present invention relates to technical field of image processing
Balance Treatment method and device.
Background technology
Generally, the video camera apparatus such as DV and digital camera is generally comprised：Optical lens, image sensing
Device, picture processing chip, image transmission module and image display.
It is well known that the object of same color can show different colors under the irradiation of different light sources, for example, grey
Object incandescent lamp irradiation under yellow can be presented, cold light source irradiation under cyan etc. can be presented.This is based on because human eye has
For the automatic regulation function of color under class environment, therefore under different light sources, human eye can reduce the essential color of object.
However, under such circumstances, the color and the result of eye-observation exported after optical lens and imaging sensor processing is then
It is variant, for example shown by a specific experiment, under daylight light irradiation, grey object passes through optical lens and imaging sensor
Obvious green is presented in the image exported after processing.Therefore, it is necessary to which the color to the output image is handled, make it in difference
Light source under the grey same or like with the result of eye-observation is presented, the main realization side using white balance correction at present
Method.
Under low-light (level) environment, compared to infrared luminous intensity, it is seen that luminous intensity is faint, when colour TV camera is imaged, if image
Sensor receives in infrared band and visible light wave range, obtained image that red optical band can be bigger than normal value simultaneously, makes defeated
Go out image overall partially red；If filtering out infrared band, light-inletting quantity can be reduced, brightness of image is reduced, so as to cause at image
Manage exposure parameter in chip to improve, and then increase noise.The previous case, common solution is the color for abandoning image
Information, exports black white image；And latter event, because image quality is too poor and infeasible.
The content of the invention
The purpose of the embodiment of the present invention is to provide under low light conditions, visible ray and infrared band is received, to defeated
Go out image carry out effectively white balance correction, to obtain, color is gorgeous, a kind of less coloured image of noise intensity low-light (level)
Lower colour TV camera AWB processing method and processing device.
In order to reach the purpose of the embodiment of the present invention, the present invention is realized using following technical scheme：
Colour TV camera AWB processing method under a kind of low-light (level), including：
Between exposure parameter, ambient infrared light intensity and infrared light image strength estimations that image is obtained by training
Mapping table；
Pending image is obtained, and obtains the exposure parameter corresponding with the image, in real time detection current environment infrared light
Strength information, current infrared light figure is obtained according to the exposure parameter, ambient infrared light strength information and mapping table
As strength estimations；
Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；
White balance correction is carried out on the processing image through going infrared influence processing to obtain.
Preferably, by training to obtain the exposure parameter, ambient infrared light strength information and infrared light image of image
The step of mapping table between strength estimations, includes：
Using Infrared irradiation material obtaining image, at the same obtain the ambient infrared light strength information near optical lens,
The exposure parameter information of image and the red channel mean information for obtaining image；
Set up accordingly between the exposure parameter, ambient infrared light strength information and infrared light image strength estimations of image
Mapping table is simultaneously preserved.
Preferably, carry out going the step of infrared influence processing on pending image according to present image infrared light strength estimations
Suddenly include：
Current infrared light image strength estimations are subtracted to the red channel data of pending image, to reject infrared light
Influence.
Preferably, the step of carrying out white balance correction to the processing image through going infrared influence processing to obtain includes：
Piecemeal is carried out to processing image；
Select and be difficult by the infrared specific color block influenceed or the larger grey block of brightness value as the grey block of candidate；
The color-values of the grey block of pending image are calculated according to candidate blocks；
Color-values according to the grey block of pending image obtain correction parameter of white balance；
White balance school is carried out on the processing image through going infrared influence processing to obtain according to obtained correction parameter of white balance
Just.
Colour TV camera AWB processing unit under a kind of low-light (level), including：
First data acquisition unit, has and the only image of infrared band for gathering；Obtain when shooting the image
The infrared intensity information of current environment and the exposure parameter information of picture processing chip；
Training unit, for obtaining image red channel mean information and corresponding from the first data acquisition unit
The exposure parameter information of ambient infrared light strength information and picture processing chip, and accordingly training obtain image exposure parameter,
Mapping table between ambient infrared light strength information and infrared light image strength estimations three；
Second data acquisition unit, for obtaining the pending image of monitor area in real time, and obtains the pending image
The infrared intensity information of current environment, while also from picture processing chip obtain current exposure parameter information；Go infrared influence
Unit, it is infrared for obtaining corresponding with currently pending image exposure parameter and current environment from the second data acquisition unit
Intensity information, and the current infrared light image strength estimations of the mapping table acquisition are inquired about accordingly；And further
Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
Preferably, the training unit includes：
Processing unit, for having and only under the environment of the different materials of infrared band irradiation, training and obtain image
Exposure parameter, the infrared intensity information of environment and infrared light image strength estimations three between mapping table；
Storage unit, the infrared intensity information and infrared light image of exposure parameter, environment for storage image is strong
The mapping table spent between estimate three.
Preferably, it is described to go infrared influence unit to include：
Receiving unit, for from the second data acquisition unit obtain corresponding with currently pending image exposure parameter and
For obtaining current infrared intensity information；And be further used for obtaining the exposure parameter of image, environment from training unit
Mapping table between infrared intensity information and infrared light image strength estimations three；
Infrared influence processing unit is rejected, for according to the exposure parameter corresponding with the pending image and currently
Infrared intensity information inquires about the mapping table and obtains current infrared light image strength estimations, and according to infrared light
Image intensity estimate carries out going infrared influence to handle on pending image.
Preferably, it is described to reject infrared influence processing unit according to current infrared light image strength estimations to pending
Image include the step of going infrared influence to handle：
Current infrared light image strength estimations are subtracted to the red channel data of pending image, to reject infrared light
Influence.
Preferably, the white balance correction unit includes：
Image block unit, for carrying out piecemeal to processing image；
The grey module unit of candidate is extracted, is difficult for picking out by the infrared specific color block influenceed or the larger ash of brightness value
Block is used as the grey block of candidate；
Grey block determining unit, the color-values of the grey block for calculating pending image according to the grey block of candidate；
Correction parameter of white balance determining unit, the color-values for the grey block according to pending image obtain white balance correction
Parameter；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
Using above-mentioned technical proposal provided in an embodiment of the present invention, AWB process under low light conditions can be avoided
In due to the color distortion problem for being influenceed by infrared light and can not effectively correcting and cause so that remain to obtain under low-light (level)
Take the good coloured image of quality.
Brief description of the drawings
Colour TV camera AWB process flow schematic diagram under a kind of low-light (level) that Fig. 1 provides for the present invention；
Colour TV camera AWB processing method under a kind of low-light (level) that Fig. 2 provides for a specific embodiment of the invention
Schematic flow sheet；
Fig. 3 shows for colour TV camera AWB processing unit structure under a kind of low-light (level) provided in an embodiment of the present invention
It is intended to.
The realization, functional characteristics and excellent effect of the object of the invention, below in conjunction with specific embodiment and accompanying drawing do into
The explanation of one step.
Embodiment
Technical scheme of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that this
The technical staff in field can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
It is fixed.
The main thought of the embodiment of the present invention is：
First by training obtain image exposure parameter, ambient infrared light intensity and infrared light image strength estimations it
Between mapping relations；
Then obtain pending image, exposure parameter and infrared luminous intensity, according to exposure parameter, ambient infrared light intensity with
Mapping relations between infrared light image strength estimations three, which are calculated, obtains infrared light image strength estimations；
Again according to infrared light image strength estimations, infrared light influence is rejected on pending image, is generated without infrared shadow
Loud image；
White balance correction finally is carried out on the image without infrared influence.
More specifically, as shown in figure 1, colour TV camera is put down in vain automatically under a kind of low-light (level) provided in an embodiment of the present invention
Weigh processing method, comprises the following steps：
S10, by training obtain image exposure parameter, ambient infrared light intensity and infrared light image strength estimations it
Between mapping table；
S20, obtain pending image, and obtain the exposure parameter of the currently pending image, according to the exposure parameter,
Ambient infrared light intensity and mapping table obtain current infrared light image strength estimations information；
S30, according to current infrared light image strength estimations information pending image is carried out going infrared influence to handle；
S40, white balance correction is carried out on the processing image through going infrared influence processing to obtain.
Specifically, in the step S10, by training with obtain the exposure parameter of image, ambient infrared light intensity with
The step of mapping table between infrared light image strength estimations, includes：
S101, have and the only different material obtaining image of Infrared irradiation, while the environment obtained near optical lens is red
Outer intensity information, the exposure parameter information of image and the red channel mean information for obtaining image；
Between S102, the exposure parameter that image is set up accordingly, ambient infrared light intensity and infrared light image strength estimations
Mapping table and preservation.
Specifically, one side according to embodiments of the present invention, in the step S30, according to current infrared light figure
The step of carrying out on pending image as strength estimations information and go infrared influence to handle includes：
Current infrared light image strength estimations are subtracted to the red channel data of pending image, to reject infrared light
Influence.
Specifically, one side according to embodiments of the present invention, in the step S40, on through going infrared influence to handle
The step of obtained processing image carries out white balance correction includes：
S401, to processing image carry out piecemeal；
S402, select and be difficult by the infrared specific color block influenceed or the larger grey block of brightness value as the grey block of candidate；
S403, the grey block of foundation candidate calculate the color-values of the grey block of pending image；
S404, the color-values according to the grey block of pending image obtain correction parameter of white balance；
The correction parameter of white balance that S405, foundation are obtained is put down in vain on the processing image through going infrared influence processing to obtain
Weighing apparatus correction.
An of the invention specific embodiment realizes that step includes：
Step 1：Collection has and the color image only produced by the different materials of Infrared irradiation, obtains near optical lens
Ambient infrared light strength information and exposure parameter, obtain exposure parameter, ambient infrared light intensity and infrared light image intensity
Mapping relations between estimate three.
In embodiments of the present invention, light source is infrared light, and the intensity of light source can be continuously adjustabe, typically require illumination
From 0.001lux to 50000lux, specific implementation steps are as shown in Figure 2.
The infrared luminous intensity L of environmentIRMeasured value is provided by infrared intensity detector, such as using Pbs photo resistance value come
Characterize the infrared luminous intensity of environment.
During training, infrared light image strength estimations IIRMeasured value is characterized by the average of image red channel.
Exposure parameter mainly includes the gain of time for exposure, aperture size and image processor.
Assuming that exposure parameter includes time for exposure T, aperture size F, the gain G ain of image processor, and when environment is red
Outer luminous intensity is LIRWhen, then T, F, Gain, L are set up in trainingIRWith IIRBetween mapping relations, and to this mapping relations preserve
, can be quickly by T, F, Gain and L from the mapping table so as among follow-up application into mapping tableIRAnd
Find corresponding IIR。
Step 2：Obtain the image influenceed without infrared light.
Color image (the R with infrared influence is obtained first1,G1,B1), while also obtaining current exposure parameter T1,F1,
Gain1, obtain infrared luminous intensity LIR1.In low photograph environment, coloured image is influenceed larger by infrared light, therefore bright in order to obtain
The low color image of beautiful, noise, then need to remove the influence of infrared light.According to the side of the calculating brightness of image described in step 1
Method is calculated；According to T1,F1,Gain1,LIR1Inquire about T, F, Gain, LIRWith IIRBetween mapping table obtain current red
Outer light image strength estimations IIR1；Then the influence of infrared light is rejected to red channel data.Preferably implement according to the present invention one
, the method for rejecting infrared light influence is：
Infrared luminous intensity and real red band constitute the red band of pending image, i.e.,：
；
Then obtain really belonging to the pixel value of red band：R ＇1=R1-LIR1；
Step 3：It is determined that the grey block of the candidate without infrared influence image.
The limited equal rectangular block of size shape will be divided into without infrared influence image first, then in all rectangular blocks
In pick out and be difficult by the infrared specific color block influenceed or the larger grey block of brightness value as the grey block of candidate.Work as in practical application
In, it is difficult to be included but is not limited to following several realizations by the infrared specific color lump influenceed：
1）Blue Sky type colors blocks, the rgb value of the color blocks is in (97 ± εR,119±εG,117±εB) represented by
In the range of；
2）Orange Yellow type colors blocks, the rgb value of the color blocks is in (255- εR,142±εG,0+εB) represented
In the range of；
3）Cyan type colors blocks, the rgb value of the color blocks is in (0 ± εR,148±εG,189±εB) represented by scope
It is interior；
4）Yellow type colors blocks, the rgb value of the color blocks is in (255- εR,217±εG,0+εB) represented by scope
It is interior.
Wherein εR,εG,εBSpan be that T can be chosen for 2 during specific implementation more than 0 and less than T.
The brightness of image of image can carry out calculating acquisition according to the color image of acquisition, and the method for calculating is varied,
Following calculation formula can for example be used, it is assumed that the band strength of pending image three channel is respectively R, G, B, then image
Brightness is：
。
The larger grey block of brightness value, meets following condition：
Wherein, YthFor luminance threshold, T1,T2,T3For the threshold value more than 1.
Step 4：The color character of the grey block of pending image is determined according to the grey block of candidate.
Assuming that the grey block of the candidate extracted has N number of, the RGB averages value of i-th of grey block is Ri,Gi,Bi, last required grey block
Rgb value be respectively R, G, B.Among practical application, R is calculated, G, B method includes but is not limited to following several method：
Method one：Calculated using average weighted mode：,,。
Method two：To R1,…,RNArranged according to order from small to large, when N is even number, when N is odd number；G is handled in the same way1,…,GN, B1,…,BNObtain G
And B.
Method three：Calculated using following calculation formula：,,。
Step 205：Determine correction parameter of white balance and carry out bag balance correction.
After R, G, B for determining the grey block of pending image, actually（R、G、B）What is characterized is the characteristic of light source, Ke Yiyi
Change the corresponding correction parameter of white balance of light source according to its calculating, be respectively：RGain, GGain and BGain, and utilization RGain,
GGain and BGain carries out white balance correction to pending image.RGain, GGain and BGain are determined according to formula below;
Wherein, MinRGB is represented（R、G、B）In minimum value.RGain, GGain and BGain can adjust each in image
The color-values of pixel, specific adjusting method be according to RGain parameter regulation R components, according to GGain parameter regulation G components,
According to BGain parameter regulation B components, distortionless correction chart picture is obtained, if some pixel before correction is（R1, g1, b1）
The pixel is r2=r1*RGain, g2=g1*GGain, b2=b1*BGain after then correcting.
So far, white balance correction processing terminates.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of low-luminance color video camera AWB processing unit,
Including：
First data acquisition unit, has and the only image of infrared band for gathering；Obtain when shooting the image
The infrared intensity information of current environment and the exposure parameter information of picture processing chip；
Training unit, for obtaining image red channel mean information and corresponding from the first data acquisition unit
The exposure parameter information of ambient infrared light strength information and picture processing chip, and accordingly training obtain image exposure parameter,
Mapping table between ambient infrared light strength information and infrared light image strength estimations three；
Second data acquisition unit, for obtaining the pending image of monitor area in real time, and obtains the pending image
The infrared intensity information of current environment, while also from picture processing chip obtain current exposure parameter information；Go infrared influence
Unit, it is infrared for obtaining corresponding with currently pending image exposure parameter and current environment from the second data acquisition unit
Intensity information, and the current infrared light image strength estimations of the mapping table acquisition are inquired about accordingly；And further
Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
Preferably, the training unit includes：
Processing unit, for having and only under the environment of the different materials of infrared band irradiation, training and obtain image
Exposure parameter, the infrared intensity information of environment and infrared light image strength estimations three between mapping table；
Storage unit, the infrared intensity information and infrared light image of exposure parameter, environment for storage image is strong
The mapping table spent between estimate three.
Preferably, it is described to go infrared influence unit to include：
Receiving unit, for from the second data acquisition unit obtain corresponding with currently pending image exposure parameter and
For obtaining current infrared intensity information；And be further used for obtaining the exposure parameter of image, environment from training unit
Mapping table between infrared intensity information and infrared light image strength estimations three；
Infrared influence processing unit is rejected, for according to the exposure parameter corresponding with the pending image and currently
Infrared intensity information inquires about the mapping table and obtains current infrared light image strength estimations, and according to infrared light
Image intensity estimate carries out going infrared influence to handle on pending image.
Preferably, it is described to reject infrared influence processing unit according to current infrared light image strength estimations to pending
Image include the step of going infrared influence to handle：
Current infrared light image strength estimations are subtracted to the red channel data of pending image, to reject infrared light
Influence.
Preferably, the white balance correction unit includes：
Image block unit, for carrying out piecemeal to processing image；
The grey module unit of candidate is extracted, for picking out specific color block or the larger grey block of brightness value as the grey block of candidate；
Grey block determining unit, the color-values of the grey block for calculating pending image according to the grey block of candidate；
Correction parameter of white balance determining unit, the color-values for the grey block according to pending image obtain white balance correction
Parameter；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
Correspondingly, with continued reference to Fig. 3, the embodiment of the present invention additionally provides colour TV camera under a kind of low-light (level), including light
Camera lens, imaging sensor, picture processing chip, image transmission module and image display are learned, it also includes as described above
Colour TV camera AWB processing unit under low-light (level), described device includes：
Have and the only image of infrared band for gathering；Obtain the infrared light intensity of the current environment when shooting the image
Spend information and the exposure parameter information of picture processing chip；
Training unit, for obtaining image red channel mean information and corresponding from the first data acquisition unit
The exposure parameter information of ambient infrared light strength information and picture processing chip, and accordingly training obtain image exposure parameter,
Mapping table between ambient infrared light strength information and infrared light image strength estimations three；
Second data acquisition unit, for obtaining the pending image of monitor area in real time, and obtains the pending image
The infrared intensity information of current environment, while also from picture processing chip obtain current exposure parameter information；Go infrared influence
Unit, it is infrared for obtaining corresponding with currently pending image exposure parameter and current environment from the second data acquisition unit
Intensity information, and the current infrared light image strength estimations of the mapping table acquisition are inquired about accordingly；And further
Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
Detailed description for colour TV camera AWB processing unit under above-mentioned low-light (level) may be referred to above
It is described, do not do repetition to this here and carefully state.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (7)
1. colour TV camera AWB processing method under a kind of low-light (level), it is characterised in that including：
Reflecting between exposure parameter, ambient infrared light intensity and the infrared light image strength estimations of image is obtained by training
Penetrate relation table；
Pending image is obtained, and obtains the exposure parameter corresponding with the image, in real time the detection infrared luminous intensity of current environment
Information, obtains current infrared light image strong according to the exposure parameter, ambient infrared light strength information and mapping table
Spend estimate；
Pending image is carried out according to current infrared light image strength estimations to go infrared influence to handle；
White balance correction is carried out on the processing image through going infrared influence processing to obtain；
Wherein, the step of carrying out on pending image according to present image infrared light strength estimations and go infrared influence to handle is wrapped
Include：
Current infrared light image strength estimations are subtracted to the red channel data of pending image, to reject the shadow of infrared light
Ring.
2. colour TV camera AWB processing method under low-light (level) as claimed in claim 1, it is characterised in that pass through instruction
The mapping practiced between the exposure parameter, ambient infrared light strength information and infrared light image strength estimations to obtain image is closed
The step of being table, includes：
Using Infrared irradiation material obtaining image, while obtaining the ambient infrared light strength information near optical lens, image
Exposure parameter information and obtain image red channel mean information；
The mapping set up accordingly between the exposure parameter, ambient infrared light strength information and infrared light image strength estimations of image
Relation table is simultaneously preserved.
3. colour TV camera AWB processing method under low-light (level) as claimed in claim 1, it is characterised in that to through going
The step of processing image that infrared influence processing is obtained carries out white balance correction includes：
Piecemeal is carried out to processing image；
Select and be difficult by the infrared specific color block influenceed or the larger grey block of brightness value as the grey block of candidate；
The color-values of the grey block of pending image are calculated according to candidate blocks；
Color-values according to the grey block of pending image obtain correction parameter of white balance；
White balance correction is carried out on the processing image through going infrared influence processing to obtain according to obtained correction parameter of white balance.
4. colour TV camera AWB processing unit under a kind of low-light (level), it is characterised in that including：
First data acquisition unit, has and the only image of infrared band for gathering；Obtain current when shooting the image
The infrared intensity information of environment and the exposure parameter information of picture processing chip；
Training unit, for obtaining image red channel mean information and corresponding environment from the first data acquisition unit
The exposure parameter information of infrared intensity information and picture processing chip, and training obtains exposure parameter, the environment of image accordingly
Mapping table between infrared intensity information and infrared light image strength estimations three；
Second data acquisition unit, for obtaining the pending image of monitor area in real time, and obtains working as the pending image
Preceding ambient infrared light strength information, while also obtaining current exposure parameter information from picture processing chip；Infrared influence unit is removed,
For obtaining exposure parameter corresponding with currently pending image and the infrared light intensity of current environment from the second data acquisition unit
Information is spent, and inquires about the mapping table accordingly and obtains current infrared light image strength estimations；And according further to
Current infrared light image strength estimations carry out going infrared influence to handle on pending image；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain；
Infrared influence processing unit is rejected, current infrared light image intensity is subtracted for the red channel data to pending image
Estimate, to reject the influence of infrared light.
5. colour TV camera AWB processing unit under low-light (level) as claimed in claim 4, it is characterised in that the instruction
Practicing unit includes：
Processing unit, for having and only under the environment of the different materials of infrared band irradiation, training the exposure for obtaining image
Mapping table between optical parameter, the infrared intensity information of environment and infrared light image strength estimations three；
Storage unit, the infrared intensity information and infrared light image intensity of exposure parameter, environment for storage image are estimated
Mapping table between evaluation three.
6. colour TV camera AWB processing unit under low-light (level) as claimed in claim 4, it is characterised in that described to go
Infrared influence unit includes：
Receiving unit, for obtaining exposure parameter corresponding with currently pending image from the second data acquisition unit and being used for
Obtain current infrared intensity information；And be further used for from training unit obtain the exposure parameter of image, environment it is infrared
Mapping table between intensity information and infrared light image strength estimations three；
Infrared influence processing unit is rejected, for according to the exposure parameter corresponding with the pending image and current infrared
Intensity information inquires about the mapping table and obtains current infrared light image strength estimations, and according to infrared light image
Strength estimations carry out going infrared influence to handle on pending image.
7. colour TV camera AWB processing unit under low-light (level) as claimed in claim 4, it is characterised in that described white
Balance correction unit includes：
Image block unit, for carrying out piecemeal to processing image；
The grey module unit of candidate is extracted, is difficult to be made by the larger grey block of the infrared specific color block influenceed or brightness value for picking out
For the grey block of candidate；
Grey block determining unit, the color-values of the grey block for calculating pending image according to the grey block of candidate；
Correction parameter of white balance determining unit, the color-values for the grey block according to pending image obtain white balance correction ginseng
Number；
White balance correction unit, for carrying out white balance correction to the processing image through going infrared influence processing to obtain.
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| CN105872510B (en) * | 2016-04-25 | 2017-11-21 | 浙江大华技术股份有限公司 | A kind of image white balancing treatment method and device |
| US10805588B2 (en) | 2016-04-25 | 2020-10-13 | Zhejiang Dahua Technology Co., Ltd. | Methods, systems, and media for image white balance adjustment |
| CN107465864B (en) * | 2016-06-03 | 2021-02-26 | 宏碁股份有限公司 | Image pickup apparatus and image processing method |
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