CN108012134A - Image pickup method and device, computer-readable recording medium and computer equipment - Google Patents
Image pickup method and device, computer-readable recording medium and computer equipment Download PDFInfo
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- CN108012134A CN108012134A CN201711420213.XA CN201711420213A CN108012134A CN 108012134 A CN108012134 A CN 108012134A CN 201711420213 A CN201711420213 A CN 201711420213A CN 108012134 A CN108012134 A CN 108012134A
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- colour temperature
- light source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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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 image pickup method of disclosure.Image pickup method includes：Light compensating lamp auxiliary exposure is controlled to obtain the first image；Obtain the colour temperature of the light source of the first image；The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of the first image and light compensating lamp；The second image is obtained when light compensating lamp is closed；Obtain second colour temperature of the colour temperature as scene of the light source of the second image；The equivalent colour temperature of scene is determined according to the first colour temperature and the second colour temperature；White balance processing is carried out to the second image with the equivalent colour temperature according to scene.A kind of filming apparatus, computer-readable recording medium and computer equipment is also disclosed in the application.The second image that image pickup method and device, the computer-readable recording medium and computer equipment of the application embodiment are gathered according to the first image gathered when opening light compensating lamp and when closing light compensating lamp determines the equivalent colour temperature of accurate scene, so that the tone that the second image after white balance processing is carried out according to the equivalent colour temperature of scene is also more accurate.
Description
Technical field
This application involves technical field of imaging, more particularly to a kind of image pickup method, filming apparatus, computer-readable storage medium
Matter and computer equipment.
Background technology
The white balancing techniques of correlation technique are by the colour temperature of the light source of the corresponding scene of detection image and according to the color of light source
Temperature carries out white balance processing to image, however, the white balancing techniques of this mode may be because the colour temperature of the light source detected not
It is enough accurate, and cause the tone of the image after white balance processing also inaccurate.
The content of the invention
Embodiments herein provides a kind of image pickup method, filming apparatus, computer-readable recording medium and computer
Equipment.
The image pickup method of the application embodiment, for computer equipment, the computer equipment includes light compensating lamp, described
Image pickup method comprises the following steps：
The light compensating lamp auxiliary exposure is controlled to obtain the first image；
Described first image is handled to obtain the colour temperature of the light source of described first image；
The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of described first image and the light compensating lamp；
The second image is obtained when the light compensating lamp is closed；
The colour temperature of light source of second image to obtain second image is handled as the second colour temperature of the scene；
The equivalent colour temperature of the scene is determined according to the second colour temperature of the first colour temperature of the scene and the scene；With
White balance processing is carried out to second image according to the equivalent colour temperature of the scene.
The filming apparatus of the application embodiment, for computer equipment, the computer equipment includes light compensating lamp, described
Filming apparatus includes：
Control module, the control module are used to control the light compensating lamp auxiliary exposure to obtain the first image；
First processing module, the first processing module are used to handle described first image to obtain described first image
The colour temperature of light source；
First determining module, first determining module are used for the colour temperature of the light source according to described first image and the benefit
The colour temperature of light lamp determines the first colour temperature of scene；
Acquisition module, the acquisition module are used to obtain the second image when the light compensating lamp is closed；
Second processing module, the Second processing module are used to handle second image to obtain second image
Second colour temperature of the colour temperature of light source as the scene；
Second determining module, second determining module are used for the according to the first colour temperature of the scene and the scene
Two colour temperatures determine the equivalent colour temperature of the scene；With
3rd processing module, the 3rd processing module are used for the equivalent colour temperature according to the scene to second image
Carry out white balance processing.
Non-volatile computer of the one or more of the application embodiment comprising computer executable instructions is readable to be deposited
Storage media, when the computer executable instructions are executed by one or more processors so that described in the processor performs
Image pickup method.
The computer equipment of the application embodiment, including memory and processor, store calculating in the memory
Machine readable instruction, when described instruction is performed by the processor so that the processor performs the image pickup method.
The image pickup method and device of the application embodiment, computer-readable recording medium and computer equipment are according to unlatching
The first image gathered during light compensating lamp determines the first colour temperature of scene, and field is determined according to the second image gathered when closing light compensating lamp
Second colour temperature of scape, and determine according to the first colour temperature and the second colour temperature the equivalent colour temperature of accurate scene, so as to according to field
The equivalent colour temperature of scape carries out white balance processing to the second image, and then can cause the tone of the second image after white balance processing
Also it is more accurate.
The additional aspect and advantage of the application will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the application.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram of the image pickup method of the application certain embodiments.
Fig. 2 is the floor map of the computer equipment of the application certain embodiments.
Fig. 3 is the module diagram of the filming apparatus of the application certain embodiments.
Fig. 4 is the flow diagram of the image pickup method of the application certain embodiments.
Fig. 5 is the module diagram of the filming apparatus of the application certain embodiments.
Fig. 6 is the schematic diagram of the photographed scene of the application certain embodiments.
Fig. 7 is the flow diagram of the image pickup method of the application certain embodiments.
Fig. 8 is the schematic diagram of the photographed scene of the application certain embodiments.
Fig. 9 is the module diagram of the first processing module of the application certain embodiments.
Figure 10 is the colour temperature curve synoptic diagram of the application certain embodiments.
Figure 11 is the flow diagram of the image pickup method of the application certain embodiments.
Figure 12 is the floor map of the computer equipment of the application certain embodiments.
Figure 13 is the module diagram of the filming apparatus of the application certain embodiments.
Figure 14 is the flow diagram of the image pickup method of the application certain embodiments.
Figure 15 is the flow diagram of the image pickup method of the application certain embodiments.
Figure 16 is the module diagram of the filming apparatus of the application certain embodiments.
Figure 17 is the flow diagram of the image pickup method of the application certain embodiments.
Figure 18 is the module diagram of the first processing module of the application certain embodiments.
Figure 19 is the flow diagram of the image pickup method of the application certain embodiments.
Figure 20 is the module diagram of the second determining module of the application certain embodiments.
Figure 21 is the module diagram of the computer equipment of the application certain embodiments.
Figure 22 is the module diagram of the image processing circuit of the application certain embodiments.
Main element symbol description：
Computer equipment 1000, light compensating lamp 100, the first light compensating lamp 120, the second light compensating lamp 140, filming apparatus 200, control
Module 212, first processing module 214, the first determination unit 2142, first processing units 2144, the second determination unit 2146,
One determining module 216, acquisition module 218, Second processing module 222, the 3rd determination unit 2222, second processing unit 2224,
4th determination unit 2226, the second determining module 224, computing unit 2242, judging unit 2244, the 5th determination unit 2246,
Into unit 2248, the 3rd processing module 226, the first division module 228, the first judgment module 232, the second judgment module 234,
First concatenation module 236, the 3rd determining module 238, the 4th determining module 242, the second division module 244, the 3rd judgment module
246th, the 4th judgment module 248, the second concatenation module 252, the 5th determining module 254, system bus 510, processor 520, deposit
Reservoir 530, built-in storage 540, display screen 550, input unit 560, image processing circuit 800, ISP processors 810, control are patrolled
Collect device 820, camera 830, lens 832, imaging sensor 834, sensor 840, video memory 850, encoder/decoder
860th, display 870.
Embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the object, technical solution and advantage of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the application, and
It is not used in restriction the application.
It is appreciated that term " first " used in this application, " second " etc. can be used to describe various elements herein,
But these elements should not be limited by these terms.These terms are only used to distinguish first element and another element.Citing comes
Say, in the case where not departing from scope of the present application, the first image can be known as the second image, and similarly, can be by second
Image is known as the first image.First image and the second image both images, but be not same image.
Please refer to Fig.1 and Fig. 2, the image pickup method of the application embodiment can be used for computer equipment 1000.Computer
Equipment 1000 includes light compensating lamp 100.Image pickup method comprises the following steps：
S212：100 auxiliary exposure of light compensating lamp is controlled to obtain the first image；
S214：The first image is handled to obtain the colour temperature of the light source of the first image；
S216：The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of the first image and light compensating lamp 100；
S218：The second image is obtained when light compensating lamp 100 is closed；
S222：The colour temperature of light source of second image to obtain the second image is handled as the second colour temperature of scene；
S224：The equivalent colour temperature of scene is determined according to the second colour temperature of the first colour temperature of scene and scene；With
S226：White balance processing is carried out to the second image according to the equivalent colour temperature of scene.
Fig. 2 and Fig. 3 are referred to, the filming apparatus 200 of the application embodiment can be used for computer equipment 1000.Calculate
Machine equipment 1000 includes light compensating lamp 100.Filming apparatus 200 includes control module 212, first processing module 214, first determines mould
Block 216, acquisition module 218, Second processing module 222, the second determining module 224 and the 3rd processing module 226.Control module
212 are used to control 100 auxiliary exposure of light compensating lamp to obtain the first image.First processing module 214 be used for handle the first image with
Obtain the colour temperature of the light source of the first image.First determining module 216 is used for the colour temperature and light compensating lamp of the light source according to the first image
100 colour temperature determines the first colour temperature of scene.Acquisition module 218 is used to obtain the second image when light compensating lamp 100 is closed.Second
Processing module 222 is used to handle the colour temperature of light source of second image to obtain the second image as the second colour temperature of scene.Second
Determining module 224 is used for the equivalent colour temperature that scene is determined according to the first colour temperature of scene and the second colour temperature of scene.3rd processing
Module 226 is used to carry out white balance processing to the second image according to the equivalent colour temperature of scene.
The image pickup method of the application embodiment can realize by the filming apparatus 200 of the application embodiment, wherein, step
Rapid S212 can be realized that step S214 can be realized by first processing module 214 by control module 212, and step S216 can be by
First determining module 216 realizes that step S218 can be realized that step S222 can be by Second processing module by acquisition module 218
222 realize, step S224 can be realized that step S226 can be realized by the 3rd processing module 226 by the second determining module 224.
Referring to Fig. 2, the filming apparatus 200 of the application embodiment can be applied to the computer of the application embodiment
In equipment 1000, in other words, the computer equipment 1000 of the application embodiment can include the bat of the application embodiment
Take the photograph device 200.
Image pickup method, filming apparatus 200 and the computer equipment 1000 of the application embodiment are according to unlatching light compensating lamp 100
When the first image for gathering determine the first colour temperature of scene, scene is determined according to the second image gathered when closing light compensating lamp 100
The second colour temperature, and the equivalent colour temperature of accurate scene is determined according to the first colour temperature and the second colour temperature, so as to according to scene
Equivalent colour temperature to the second image carry out white balance processing, and then can cause white balance handle after the second image tone
It is more accurate.
In some embodiments, scene colour temperature (the first colour temperature of scene, the second colour temperature of scene or scene it is equivalent
Colour temperature) it can refer to the colour temperature of original scene, do not include the colour temperature of light compensating lamp 100.
Specifically, since white balance algorithm is there are certain error, such as under half-light environment, existing white balance algorithm
It is difficult to detect light source, even if detecting light source, detects the accuracy of colour temperature of the light source of acquisition also than relatively low.Therefore, can be with
Brightness is lifted to improve the success rate of light source detection, but since light compensating lamp 100 is in the same of lifting brightness using light compensating lamp 100
When can generally influence the colour temperature of scene, such as when the colour temperature of light compensating lamp 100 differs larger with the colour temperature of scene, may cause to examine
The colour temperature of the scene measured is also less accurate.Therefore, the first image can be gathered when opening light compensating lamp 100 respectively and closed
The second image is gathered during light compensating lamp 100, the first colour temperature of scene can be obtained by the first image, can be obtained by the second image
The second colour temperature of scene is taken, the equivalent colour temperature of accurate scene can be obtained according to the first colour temperature and the second colour temperature.
In some embodiments, the correspondence of colour temperature and white balance parameter, root are prestored in computer equipment 1000
It can be searched in the correspondence of colour temperature and white balance parameter according to equivalent colour temperature and obtain corresponding white balance parameter, so as to
White balance processing is carried out to image according to white balance parameter.
Referring to Fig. 4, in some embodiments, comprise the following steps before step S214：
S228：First image is divided into multiple regions；
S232：According to the histogram in each region judge region whether be the light source for including the first image target area；
S234：Judge whether adjacent multiple target areas；
S236：There are the light that adjacent multiple target areas are spliced into the first image during adjacent multiple target areas
Source；With
S238：There is no the light source that target area is determined as to the first image during adjacent multiple target areas.
Referring to Fig. 5, in some embodiments, filming apparatus 200 judges mould including the first division module 228, first
Block 232, the second judgment module 234, the first concatenation module 236 and the 3rd determining module 238.First division module 228 is used for will
First image is divided into multiple regions.First judgment module 232 is used to judge whether region is bag according to the histogram in each region
Include the target area of the light source of the first image.Second judgment module 234 is used to judge whether adjacent multiple target areas.
First concatenation module 236 is used for there are adjacent multiple target areas are spliced into the first figure during adjacent multiple target areas
The light source of picture.3rd determining module 238 is used for there is no target area is determined as first during adjacent multiple target areas
The light source of image.
In other words, step S228 can be realized that step S232 can be by the first judgment module by the first division module 228
232 realize, step S234 can be realized that step S236 can be realized by the first concatenation module 236 by the second judgment module 234,
Step S238 can be realized by the 3rd determining module 238.
So, it may be determined that the light source position in the first image.
Specifically, the first image can be divided into multiple regions, such as the first image is divided into 64*48 region.According to
It is pre- that the histogram in each region may determine that whether the accounting of pixel of the pixel value more than presetted pixel value P in each region exceedes
If ratio, presetted pixel value P is, for example, 239, and preset ratio is, for example, 5%, that is, judges that pixel value is more than 239 in each region
Whether more than 5%, the accounting of pixel of the pixel value more than presetted pixel value P exceedes the corresponding region of preset ratio to the accounting of pixel
It is the target area for the light source for including the first image.There are during target area in the first image, judge whether adjacent
Multiple target areas, there are during adjacent multiple target areas, adjacent multiple target areas belong to same light source, therefore
Adjacent multiple target areas can be spliced into the light source of the first image；There is no during adjacent multiple target areas, mesh
Mark region is the light source for being regarded as the first image.Therefore, the light source position in the first image can be determined by target area.
Referring to Fig. 6, in one example, region A, region B, region C may determine that according to the histogram in each region
It is the target area for the light source for including the first image with region D, such as from the histogram of region A, it can be determined that go out in the A of region
The accounting of pixel of the pixel value more than presetted pixel value P has exceeded preset ratio, due to region A, region B, region C and region D
It is adjacent multiple target areas, therefore region A, region B, region C and region D can be stitched together, so as to obtains more
Complete light source.
Fig. 7 and Fig. 8 are referred to, in some embodiments, step S214 comprises the following steps：
S2142：According to the Luminance Distribution of the center of the light source of the first image radially determine highlight regions and in it is bright
Region；
S2144：The primary color channels pixel average of highlight regions is subtracted to the primary color channels pixel average of middle bright area
To determine the color of the light source of the first image；With
S2146：The colour temperature of the light source of the first image is determined according to the color of the light source of the first image.
Refer to Fig. 8 and Fig. 9, in some embodiments, first processing module 214 include the first determination unit 2142,
2144 and second determination unit 2146 of first processing units.First determination unit 2142 is used in the light source according to the first image
The Luminance Distribution of the heart radially determines highlight regions and middle bright area.First processing units 2144 are used for highlight regions
Primary color channels pixel average subtracts the primary color channels pixel average of middle bright area with the color of the light source of definite first image.
Second determination unit 2146 is used for the colour temperature that the light source of the first image is determined according to the color of the light source of the first image.
In other words, step S2142 can be realized by the first determination unit 2142, and step S2144 can be by the first processing
Unit 2144 realizes that step S2146 can be realized by the second determination unit 2146.
In this way, the color and colour temperature of the light source of the first image can be determined by highlight regions H and middle bright area M.
Referring to Fig. 8, after the light source position in the first image determines, it will be understood that the light source in the first image
Central area O be overexposure region, generally Great White Spot, the information of the color not comprising light source.The color of light source can pass through
The primary color channels pixel average of highlight regions H and middle bright area M determine.Highlight regions H can refer to the center of light source along footpath
Be in the region that the pixel of the first brightness range L1 formed to outside brightness value, the first brightness range L1 be, for example, [200,
239).Middle bright area M can refer to that the brightness value of the center of light source radially is in the pixel institute of the second brightness range L2
The region of composition, the second brightness range L2 be, for example, [150,200).It should be noted that the first brightness range L1 and second is bright
Spending the specific value of range L 2 can determine according to the Luminance Distribution of the center O of light source radially, such as the brightness of light source
The first brightness range L1 and the second brightness range L2 must can be increased than very fast by decaying；Such as the brightness decay of light source must compare
Slowly, the first brightness range L1 and the second brightness range L2 can be reduced.
In some embodiments, primary color channels refer to Color Channel, such as (green red) logical including R (red) passage, Gr
It is at least one in road, Gb (turquoise) passage, B (blueness) passage, in some embodiments, the pixel of Gr passages can be passed through
The pixel value of value and Gb passages obtains the pixel value of G (green) passage.Pixel average can refer to the arithmetic of multiple pixel values
Average value, multiple pixel values can be all pixels of highlight regions pixel value or middle bright area all pixels pixel
Value.In one example, each primary color channels pixel average (R of highlight regionsavg, Gavg, Bavg) it is (200,210,220),
Each primary color channels pixel average (R of middle bright areaavg, Gavg, Bavg) be (160,180,190), then light source colour passage
(R, G, B) is (200-160,210-180,220-190), i.e. (40,30,30).
In some embodiments, the colour temperature of light source is determined according to the color of light source, is specifically as follows：According to the face of light source
The correspondence of the colour temperature of color, the color of light source and light source determines the colour temperature of light source.Wherein, the color of light source and the colour temperature of light source
Correspondence can be mapping table and/or colour temperature curve.
Referring to Fig. 10, can be respectively the mark such as 3000K, 4000K, 5000K, 6000K in colour temperature in one embodiment
Under quasi- lamp box, obtain image and the color of the corresponding light source under above-mentioned different-colour is obtained by calculation, it is possible thereby to be formed
The color of light source and the colour temperature curve of colour temperature, and the colour temperature curve can be stored in computer equipment 1000.Pass through light source
Color the colour temperature that can obtain corresponding light source is searched in colour temperature curve.
1 and Figure 12 are please referred to Fig.1, in some embodiments, light compensating lamp 100 includes first with the first preset color temperature
Light compensating lamp 120 and the second light compensating lamp 140 with the second preset color temperature, comprise the following steps before step S216：
S242：According to the first preset color temperature, the second preset color temperature, the working status of the first light compensating lamp 120 and the second light filling
The working status of lamp 140 determines the colour temperature of light compensating lamp 100.
2 and Figure 13 are please referred to Fig.1, in some embodiments, light compensating lamp 100 includes first with the first preset color temperature
Light compensating lamp 120 and the second light compensating lamp 140 with the second preset color temperature, filming apparatus 200 include the 4th determining module 242.The
Four determining modules 242 are used for according to the first preset color temperature, the second preset color temperature, the working status and second of the first light compensating lamp 120
The working status of light compensating lamp 140 determines the colour temperature of light compensating lamp 100.
In other words, step S242 can be realized by the 4th determining module 242.
In this way, it can accurately and quickly determine the colour temperature of light compensating lamp 100.
Specifically, in some embodiments, in order to strengthen the brightness of light compensating lamp 100 and adjust the colour temperature of light compensating lamp 100,
Light compensating lamp 100 can include the first light compensating lamp with the first preset color temperature and the second light compensating lamp with the second preset color temperature.
The working status of working status (such as operating current, operating voltage) and the second light compensating lamp 140 by the first light compensating lamp 120 can
To determine the brightness of the brightness of the first light compensating lamp 120 and the second light compensating lamp 140.According to the first preset color temperature, the second preset color temperature,
The brightness of first light compensating lamp 120 and the brightness of the second light compensating lamp 140 can determine colour temperature (i.e. the first light compensating lamp of light compensating lamp 100
120 and second light compensating lamp 140 synthetic color temperature), according to the following formula (CCT2*F1+CCT3*F2)/(F1+F2)=CCT1, its
Middle CCT2 can be the first preset color temperature, and F1 can be the brightness of the first light compensating lamp 120, and CCT3 can be the second preset color temperature,
F2 can be the brightness of the second light compensating lamp 140, and CCT1 can be the colour temperature of light compensating lamp 100.
In some embodiments, the first preset color temperature and the second preset color temperature can be respectively according to the first different light fillings
120 and second light compensating lamp 140 of lamp is determined, such as the first preset color temperature is 3000K, and the second preset color temperature is 5000K, or
First preset color temperature is 2000K, and the second preset color temperature is 8000K etc..
In one embodiment, the first preset color temperature is 3000K, and the second preset color temperature is 5000K, controls the first light compensating lamp
120 and second light compensating lamp 140 work at the same time, and while working, sends consistent brightness, so that the colour temperature for obtaining light compensating lamp 100 is
4000K。
In some embodiments, the quantity of light compensating lamp 100 is 1, then the light compensating lamp 100 colour temperature of itself may be regarded as mending
The colour temperature of light lamp 100.
4 are please referred to Fig.1, in some embodiments, light compensating lamp 100 has the first brightness, and scene has the second brightness, step
Rapid S216 comprises the following steps：
S2162：Determined according to the first brightness, the second brightness, the colour temperature of light source of the first image and the colour temperature of light compensating lamp 100
First colour temperature of scene.
Referring to Fig. 3, in some embodiments, light compensating lamp 100 has the first brightness, scene has the second brightness, the
One determining module 216 be used for according to the first brightness, the second brightness, the first image the colour temperature of light source and the colour temperature of light compensating lamp 100
Determine the colour temperature of scene.
In other words, step S2162 can be realized by the first determining module 216.
In this way, it can accurately and quickly determine the first colour temperature of scene.
Specifically, according to the first brightness, the second brightness, the first image light source colour temperature and the colour temperature of light compensating lamp 100 can
To determine the first colour temperature of scene, according to the following formula (CCT2*F1+CCT3*F2)/(F1+F2)=CCT1, wherein CCT2 can be with
For the colour temperature of light compensating lamp 100, F1 can be the first brightness, and CCT3 can be the first colour temperature of scene, and F2 can be the second brightness,
CCT1 can be the colour temperature of the light source of the first image, then can obtain CCT3=[CCT1* (F1+F2)-CCT2*F1]/F2.
In some embodiments, the first brightness can be determined by the brightness of light compensating lamp 100, such as be wrapped in light compensating lamp 100
When including the first light compensating lamp 120 and the second light compensating lamp 140, the brightness (the first brightness) of light compensating lamp 100 is the bright of the first light compensating lamp 120
The sum total of the brightness of degree and the second light compensating lamp 140.When the quantity of light compensating lamp 100 is 1, the brightness of itself of light compensating lamp 100
It is regarded as the first brightness.
In some embodiments, it can obtain ambient image in the case of light compensating lamp 100 is idle, pass through processing
Ambient image can obtain the second brightness, for example, all pixels of computing environment image average brightness as the second brightness.
In some embodiments, computer equipment 1000 can include photometry element, and photometry element is, for example, selenium electricity
Pipe, cadmium sulphide photoconductive cell, silicon photoelectric diode, gallium arsenide phosphide photodiode etc., can be obtained by photometry element work
Second brightness.
5 are please referred to Fig.1, in some embodiments, is comprised the following steps before step S222：
S244：Second image is divided into multiple regions；
S246：According to the histogram in each region judge region whether be the light source for including the second image target area；
S248：Judge whether adjacent multiple target areas；
S252：There are the light that adjacent multiple target areas are spliced into the second image during adjacent multiple target areas
Source；With
S254：There is no the light source that target area is determined as to the second image during adjacent multiple target areas.
6 are please referred to Fig.1, in some embodiments, filming apparatus 200 judges mould including the second division module the 244, the 3rd
Block 246, the 4th judgment module 248, the second concatenation module 252 and the 5th determining module 254.Second division module 244 is used for will
Second image is divided into multiple regions.3rd judgment module 246 is used to judge whether region is bag according to the histogram in each region
Include the target area of the light source of the second image.4th judgment module 248 is used to judge whether adjacent multiple target areas.
Second concatenation module 252 is used for there are adjacent multiple target areas are spliced into the second figure during adjacent multiple target areas
The light source of picture.5th determining module 254 is used for there is no target area is determined as second during adjacent multiple target areas
The light source of image.
In other words, step S244 can be realized that step S246 can be by the 3rd judgment module by the second division module 244
246 realize, step S248 can be realized that step S252 can be realized by the second concatenation module 252 by the 4th judgment module 248,
Step S254 can be realized by the 5th determining module 254.
So, it may be determined that the light source position in the second image.
In some embodiments, determine that the method for the light source position in the second image is determined in the first image with above-mentioned
The method of light source position is similar, and this will not be repeated here.
7 are please referred to Fig.1, in some embodiments, step S222 comprises the following steps：
S2222：According to the Luminance Distribution of the center of the light source of the second image radially determine highlight regions and in it is bright
Region；
S2224：The primary color channels pixel average of highlight regions is subtracted to the primary color channels pixel average of middle bright area
To determine the color of the light source of the second image；With
S2226：The colour temperature of the light source of the second image is determined according to the color of the light source of the second image.
8 are please referred to Fig.1, in some embodiments, Second processing module 222 includes the 3rd determination unit 2222, second
2224 and the 4th determination unit 2226 of processing unit.3rd determination unit 2222 is used for the center edge of the light source according to the second image
Radially outer Luminance Distribution determines highlight regions and middle bright area.Second processing unit 2224 is used for the primary colours of highlight regions
Passage pixel average subtracts the primary color channels pixel average of middle bright area with the color of the light source of definite second image.4th
Determination unit 2226 is used for the colour temperature that the light source of the second image is determined according to the color of the light source of the second image.
In other words, step S2222 can be realized that step S2224 can be by second processing by the 3rd determination unit 2222
Unit 2224 realizes that step S2226 can be realized by the 4th determination unit 2226.
In this way, the color and colour temperature of the light source of the second image can be determined by highlight regions and middle bright area.
In some embodiments, the color and colour temperature of the light source of the second image are determined by highlight regions and middle bright area
Light source of the method with determining the first image above by highlight regions and middle bright area color and colour temperature method it is similar,
This is not repeated.
9 are please referred to Fig.1, in some embodiments, step S224 comprises the following steps：
S2242：Calculate the colour temperature difference of the first colour temperature of scene and the second colour temperature of scene；
S2244：Judge whether colour temperature difference is less than preset difference value；
S2246：When colour temperature difference is less than preset difference value, the first colour temperature, or the second colour temperature, or the first colour temperature and are determined
Equivalent colour temperature of the average value of two colour temperatures as scene；With
When colour temperature difference is greater than or equal to preset difference value, S212 is entered step.
Figure 20 is referred to, in some embodiments, the second determining module 224 includes computing unit 2242, judging unit
2244th, the 5th determination unit 2246 and entrance unit 2248.Computing unit 2242 is used for the first colour temperature and scene for calculating scene
The second colour temperature colour temperature difference.Judging unit 2244 is used to judge whether colour temperature difference is less than preset difference value.5th determines list
Member 2246 is used for when colour temperature difference is less than preset difference value, determines the first colour temperature, or the second colour temperature, or the first colour temperature and the second color
Equivalent colour temperature of the average value of temperature as scene.It is used for into unit 2248 when colour temperature difference is greater than or equal to preset difference value,
Into control 100 auxiliary exposure of light compensating lamp to obtain the first image the step of.
In other words, step S2242 can be realized by computing unit 2242, and step S2244 can be by judging unit 2244
Realize, step S2246 can be realized by the 5th determination unit 2246.
In this way, the equivalent colour temperature of scene can be determined according to the first colour temperature of scene and the second colour temperature of scene.
Specifically, the first colour temperature due to the scene by the first image acquisition and the scene by the second image acquisition
Second colour temperature, therefore, can be by calculating the first colour temperature of scene and the color temperature difference of the second colour temperature all there is certain deviation
Value determines the equivalent colour temperature of scene.Judge whether colour temperature difference is less than preset difference value, wherein, preset difference value can be pre-set
Determined in computer equipment 1000 or by user, when colour temperature difference is less than preset difference value, illustrate scene the first colour temperature and
Second colour temperature is relatively, i.e., more consistent by the first image and by the colour temperature ratio that the second image two ways obtains, therefore
The Reliability comparotive of first colour temperature and the second colour temperature is high, can be directly using equivalent color of the first colour temperature of scene as scene
Temperature, or directly using equivalent colour temperature of the second colour temperature of scene as scene, or directly use the first colour temperature and second of scene
Equivalent colour temperature of the average of colour temperature as scene.
When colour temperature difference is greater than or equal to preset difference value, illustrate that the first colour temperature of scene and the second colour temperature difference are larger,
It is i.e. less consistent by the first image and by the colour temperature that the second image two ways obtains, therefore the first colour temperature and the second color
The Reliability comparotive of temperature is low, therefore can enter step S212, thus re-execute the image pickup method of the application embodiment with
Reacquire the first colour temperature and the second colour temperature of accurate scene.
In some embodiments, can be according to traditional white balance when colour temperature difference is greater than or equal to preset difference value
Algorithm (such as gray world method, dynamic threshold algorithm etc.) determines the equivalent colour temperature of scene, is not specifically limited herein.
The division of modules is only used for for example, in other embodiments, will can shoot in above-mentioned filming apparatus 200
Device 200 is divided into different modules as required, to complete all or part of function of above-mentioned filming apparatus 200.
The embodiment of the present application additionally provides a kind of computer-readable recording medium.One or more can perform comprising computer
The non-volatile computer readable storage medium storing program for executing of instruction, when computer executable instructions are executed by one or more processors,
So that processor performs following steps：
S212：100 auxiliary exposure of light compensating lamp is controlled to obtain the first image；
S214：The first image is handled to obtain the colour temperature of the light source of the first image；
S216：The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of the first image and light compensating lamp 100；
S218：The second image is obtained when light compensating lamp 100 is closed；
S222：The colour temperature of light source of second image to obtain the second image is handled as the second colour temperature of scene；
S224：The equivalent colour temperature of scene is determined according to the second colour temperature of the first colour temperature of scene and scene；With
S226：White balance processing is carried out to the second image according to the equivalent colour temperature of scene.
Figure 21 is the internal structure schematic diagram of one embodiment Computer equipment.As shown in figure 21, the computer equipment
1000 processors 520 for including connecting by system bus 510, memory 530 (being, for example, non-volatile memory medium), memory
Reservoir 540, display screen 550 and input unit 560.Wherein, the memory 530 of computer equipment 1000 be stored with operating system and
Computer-readable instruction.The computer-readable instruction can be performed by processor 520, to realize the shooting side of the application embodiment
Method.The processor 520 is used to provide calculating and control ability, supports the operation of whole computer equipment 1000.Computer equipment
1000 built-in storage 530 provides environment for the operation of the computer-readable instruction in memory 520.Computer equipment 1000
Display screen 550 can be liquid crystal display or electric ink display screen etc., and input unit 560 can be 550 overlying of display screen
The button, trace ball or the Trackpad that are set on the touch layer or 1000 shell of computer equipment of lid or external
Keyboard, Trackpad or mouse etc..The computer equipment 1000 can be mobile phone, tablet computer, laptop, individual digital
Assistant or Wearable (such as Intelligent bracelet, intelligent watch, intelligent helmet, intelligent glasses) etc..Those skilled in the art can
The structure shown to understand, in Figure 21, only with the schematic diagram of the relevant part-structure of application scheme, is not formed to this
The restriction for the computer equipment 1000 that application scheme is applied thereon, specific computer equipment 1000 can include than in figure
Shown more or fewer components, either combine some components or are arranged with different components.
Figure 22 is referred to, the computer equipment 1000 of the embodiment of the present application includes image processing circuit 800, image procossing
Circuit 800 can utilize hardware and or software component to realize, it may include define ISP (Image Signal Processing, figure
As signal processing) the various processing units of pipeline.Figure 22 is the schematic diagram of image processing circuit 800 in one embodiment.Such as figure
Shown in 22, for purposes of illustration only, only showing the various aspects with the relevant image processing techniques of the embodiment of the present application.
As shown in figure 22, including ISP processors 810, (ISP processors 810 can be processor 520 to image processing circuit 800
Or a part for processor 520) and control logic device 820.The view data that camera 830 is caught is first by ISP processors 810
Processing, ISP processors 810 analyze view data can be used for determining that the one or more of camera 830 control to catch
The image statistics of parameter.Camera 830 may include one or more lens 832 and imaging sensor 834.Imaging sensor
834 may include colour filter array (such as Bayer filters), and imaging sensor 834 can obtain the light intensity that each imaging pixel is caught
Degree and wavelength information, and the one group of raw image data that can be handled by ISP processors 810 is provided.Sensor 840 (such as gyroscope)
The parameter (such as stabilization parameter) of the image procossing of collection can be supplied to based on 840 interface type of sensor by ISP processors 810.
840 interface of sensor can be SMIA (Standard Mobile Imaging Architecture, Standard Mobile Imager frame
Structure) interface, other serial or parallel camera interfaces or above-mentioned interface combination.
In addition, raw image data can be also sent to sensor 840 by imaging sensor 834, sensor 840 can be based on passing
840 interface type of sensor is supplied to ISP processors 810, or sensor 840 to deposit raw image data raw image data
Store up in video memory 850.
ISP processors 810 handle raw image data pixel by pixel in various formats.For example, each image pixel can
Bit depth with 8,10,12 or 14 bits, ISP processors 810 can carry out raw image data at one or more images
Reason operation, statistical information of the collection on view data.Wherein, image processing operations can be by identical or different bit depth precision
Carry out.
ISP processors 810 can also receive view data from video memory 850.For example, 840 interface of sensor will be original
View data is sent to video memory 850, and the raw image data in video memory 850 is available to ISP processors 810
It is for processing.Video memory 850 can be in memory 530, a part for memory 530, storage device or electronic equipment
Independent private memory, and may include DMA (Direct Memory Access, direct direct memory access (DMA)) feature.
When receiving from 834 interface of imaging sensor or from 840 interface of sensor or from video memory 850
During raw image data, ISP processors 810 can carry out one or more image processing operations, such as time-domain filtering.Figure after processing
As data can be transmitted to video memory 850, to carry out other processing before shown.ISP processors 810 are from image
Memory 850 receives processing data, and the processing data are carried out in original domain and in RGB and YCbCr color spaces
Image real time transfer.View data after the processing of ISP processors 810 may be output to display 870, and (display 870 may include to show
Display screen 550), so that user watches and/or by graphics engine or GPU (Graphics Processing Unit, graphics process
Device) further processing.In addition, the output of ISP processors 810 also can be transmitted to video memory 850, and display 870 can be from
Video memory 850 reads view data.In one embodiment, video memory 850 can be configured as realizing one or more
A frame buffer.In addition, the output of ISP processors 810 can be transmitted to encoder/decoder 860, so as to encoding/decoding image
Data.The view data of coding can be saved, and be decompressed before being shown in 870 equipment of display.Encoder/decoder
860 can be realized by CPU or GPU or coprocessor.
The definite statistics of ISP processors 810, which can be transmitted, gives control logic device Unit 820.For example, statistics can wrap
Include the image sensings such as automatic exposure, automatic white balance, automatic focusing, flicker detection, black level compensation, 832 shadow correction of lens
834 statistical information of device.Control logic device 820 may include the treatment element for performing one or more routines (such as firmware) and/or micro-
Controller, one or more routines according to the statistics of reception, can determine the control parameter and ISP processors of camera 830
810 control parameter.For example, the control parameter of camera 830 may include 840 control parameter of sensor (such as gain, exposure control
Time of integration of system, stabilization parameter etc.), camera flash control parameter, 832 control parameter of lens (such as focus on or zoom is used
Focal length) or these parameters combination.ISP control parameters may include to be used for automatic white balance and color adjustment (for example, at RGB
During reason) gain level and color correction matrix, and 832 shadow correction parameter of lens.
It it is below the step of realizing image pickup method with image processing techniques in Figure 22：
S212：100 auxiliary exposure of light compensating lamp is controlled to obtain the first image；
S214：The first image is handled to obtain the colour temperature of the light source of the first image；
S216：The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of the first image and light compensating lamp 100；
S218：The second image is obtained when light compensating lamp 100 is closed；
S222：The colour temperature of light source of second image to obtain the second image is handled as the second colour temperature of scene；
S224：The equivalent colour temperature of scene is determined according to the second colour temperature of the first colour temperature of scene and scene；With
S226：White balance processing is carried out to the second image according to the equivalent colour temperature of scene.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in that a non-volatile computer is readable to be deposited
In storage media, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium
Can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) etc..
Embodiment described above only expresses the several embodiments of the application, its description is more specific and detailed, but simultaneously
Therefore the limitation to the application the scope of the claims cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, on the premise of the application design is not departed from, various modifications and improvements can be made, these belong to the guarantor of the application
Protect scope.Therefore, the protection domain of the application patent should be determined by the appended claims.
Claims (18)
1. a kind of image pickup method, for computer equipment, it is characterised in that the computer equipment includes light compensating lamp, the bat
The method of taking the photograph comprises the following steps：
The light compensating lamp auxiliary exposure is controlled to obtain the first image；
Described first image is handled to obtain the colour temperature of the light source of described first image；
The first colour temperature of scene is determined according to the colour temperature of the colour temperature of the light source of described first image and the light compensating lamp；
The second image is obtained when the light compensating lamp is closed；
The colour temperature of light source of second image to obtain second image is handled as the second colour temperature of the scene；
The equivalent colour temperature of the scene is determined according to the second colour temperature of the first colour temperature of the scene and the scene；With
White balance processing is carried out to second image according to the equivalent colour temperature of the scene.
2. image pickup method according to claim 1, it is characterised in that the processing described first image is to obtain described the
Comprised the following steps before the step of colour temperature of the light source of one image：
Described first image is divided into multiple regions；
According to the histogram in each region judge the region whether be the light source for including described first image target area
Domain；
Judge whether adjacent multiple target areas；
There are adjacent multiple target areas are spliced into described first image during adjacent multiple target areas
Light source；With
There is no the light source that the target area is determined as to described first image during adjacent multiple target areas.
3. image pickup method according to claim 1, it is characterised in that the processing described first image is to obtain described the
The step of colour temperature of the light source of one image, comprises the following steps：
Highlight regions and middle bright area are determined according to the Luminance Distribution of the center of the light source of described first image radially；
By the primary color channels pixel average of the highlight regions subtract the primary color channels pixel average of the middle bright area with
Determine the color of the light source of described first image；With
The colour temperature of the light source of described first image is determined according to the color of the light source of described first image.
4. image pickup method according to claim 1, it is characterised in that the light compensating lamp is included with the first preset color temperature
First light compensating lamp and the second light compensating lamp with the second preset color temperature, the colour temperature of the light source according to described first image and institute
Comprise the following steps before stating the step of the colour temperature of light compensating lamp determines the first colour temperature of scene：
According to first preset color temperature, second preset color temperature, the working status of first light compensating lamp and described second
The working status of light compensating lamp determines the colour temperature of the light compensating lamp.
5. image pickup method according to claim 1, it is characterised in that the light compensating lamp has the first brightness, the scene
With the second brightness, the colour temperature of the light source according to described first image and the colour temperature of the light compensating lamp determine the first of scene
The step of colour temperature, comprises the following steps：
According to first brightness, second brightness, described first image the colour temperature of light source and the colour temperature of the light compensating lamp
Determine the first colour temperature of the scene.
6. image pickup method according to claim 1, it is characterised in that the processing second image is to obtain described the
Comprised the following steps before the step of the second colour temperature of the colour temperature of the light source of two images as the scene：
Second image is divided into multiple regions；
According to the histogram in each region judge the region whether be the light source for including second image target area
Domain；
Judge whether adjacent multiple target areas；
There are adjacent multiple target areas are spliced into second image during adjacent multiple target areas
Light source；With
There is no the light source that the target area is determined as to second image during adjacent multiple target areas.
7. image pickup method according to claim 1, it is characterised in that the processing second image is to obtain described the
The step of the second colour temperature of the colour temperature of the light source of two images as the scene, comprises the following steps：
Highlight regions and middle bright area are determined according to the Luminance Distribution of the center of the light source of second image radially；
By the primary color channels pixel average of the highlight regions subtract the primary color channels pixel average of the middle bright area with
Determine the color of the light source of second image；With
The colour temperature of the light source of second image is determined according to the color of the light source of second image.
8. image pickup method according to claim 1, it is characterised in that first colour temperature according to the scene and described
The step of second colour temperature of scene determines the equivalent colour temperature of the scene comprises the following steps：
Calculate the colour temperature difference of the first colour temperature of the scene and the second colour temperature of the scene；
Judge whether the colour temperature difference is less than preset difference value；
When the colour temperature difference is less than the preset difference value, first colour temperature, or second colour temperature, or described are determined
Equivalent colour temperature of the average value of color temperature and second colour temperature as the scene；With
When the colour temperature difference is greater than or equal to the preset difference value, into the light compensating lamp auxiliary exposure is controlled to obtain the
The step of one image.
9. a kind of filming apparatus, for computer equipment, it is characterised in that the computer equipment includes light compensating lamp, the bat
Taking the photograph device includes：
Control module, the control module are used to control the light compensating lamp auxiliary exposure to obtain the first image；
First processing module, the first processing module are used to handle described first image to obtain the light source of described first image
Colour temperature；
First determining module, first determining module are used for the colour temperature of the light source according to described first image and the light compensating lamp
Colour temperature determine the first colour temperature of scene；
Acquisition module, the acquisition module are used to obtain the second image when the light compensating lamp is closed；
Second processing module, the Second processing module are used to handle second image to obtain the light source of second image
Second colour temperature of the colour temperature as the scene；
Second determining module, second determining module are used for according to the first colour temperature of the scene and the second color of the scene
Temperature determines the equivalent colour temperature of the scene；With
3rd processing module, the 3rd processing module are used to carry out second image according to the equivalent colour temperature of the scene
White balance processing.
10. filming apparatus according to claim 9, it is characterised in that the filming apparatus includes：
First division module, first division module are used to described first image being divided into multiple regions；
First judgment module, first judgment module are used to whether judge the region according to the histogram in each region
It is the target area for the light source for including described first image；
Second judgment module, second judgment module are used to judge whether adjacent multiple target areas；
First concatenation module, first concatenation module are used for there are will be adjacent more during adjacent multiple target areas
A target area is spliced into the light source of described first image；With
3rd determining module, the 3rd determining module be used for there is no during adjacent multiple target areas by the mesh
Mark region is determined as the light source of described first image.
11. filming apparatus according to claim 9, it is characterised in that the first processing module includes：
First determination unit, first determination unit are used for according to the center of the light source of described first image radially
Luminance Distribution determines highlight regions and middle bright area；
First processing units, the first processing units are used to the primary color channels pixel average of the highlight regions subtracting institute
The primary color channels pixel average of middle bright area is stated with the color of the light source of definite described first image；With
Second determination unit, second determination unit are used to determine described first according to the color of the light source of described first image
The colour temperature of the light source of image.
12. filming apparatus according to claim 9, it is characterised in that the light compensating lamp includes having the first preset color temperature
The first light compensating lamp and the second light compensating lamp with the second preset color temperature, the filming apparatus includes：
4th determining module, the 4th determining module are used for according to first preset color temperature, second preset color temperature, institute
State the working status of the first light compensating lamp and the working status of second light compensating lamp determines the colour temperature of the light compensating lamp.
13. filming apparatus according to claim 9, it is characterised in that the light compensating lamp has the first brightness, the scene
With the second brightness, first determining module is used for according to first brightness, second brightness, described first image
The colour temperature of light source and the colour temperature of the light compensating lamp determine the colour temperature of the scene.
14. filming apparatus according to claim 9, it is characterised in that the filming apparatus includes：
Second division module, second division module are used to second image being divided into multiple regions；
3rd judgment module, the 3rd judgment module are used to whether judge the region according to the histogram in each region
It is the target area for the light source for including second image；
4th judgment module, the 4th judgment module are used to judge whether adjacent multiple target areas；
Second concatenation module, second concatenation module are used for there are will be adjacent more during adjacent multiple target areas
A target area is spliced into the light source of second image；With
5th determining module, the 5th determining module be used for there is no during adjacent multiple target areas by the mesh
Mark region is determined as the light source of second image.
15. filming apparatus according to claim 9, it is characterised in that the Second processing module includes：
3rd determination unit, the 3rd determination unit are used for according to the center of the light source of second image radially
Luminance Distribution determines highlight regions and middle bright area；
Second processing unit, the second processing unit are used to the primary color channels pixel average of the highlight regions subtracting institute
The primary color channels pixel average of middle bright area is stated with the color of the light source of definite second image；With
4th determination unit, the 4th determination unit are used to determine described second according to the color of the light source of second image
The colour temperature of the light source of image.
16. filming apparatus according to claim 9, it is characterised in that second determining module includes：
Computing unit, the computing unit are used for the colour temperature for calculating the first colour temperature of the scene and the second colour temperature of the scene
Difference；
Judging unit, the judging unit are used to judge whether the colour temperature difference is less than preset difference value；
5th determination unit, the 5th determination unit are used for when the colour temperature difference is less than the preset difference value, determine institute
The first colour temperature, or second colour temperature, or the average value of first colour temperature and second colour temperature are stated as the scene
Equivalent colour temperature；With
Into unit, the unit that enters is used for when the colour temperature difference is greater than or equal to the preset difference value, into control
The step of light compensating lamp auxiliary exposure is to obtain the first image.
17. one or more includes the non-volatile computer readable storage medium storing program for executing of computer executable instructions, when the calculating
When machine executable instruction is executed by one or more processors so that the processor perform claim requires any one of 1 to 8 institute
The image pickup method stated.
18. a kind of computer equipment, including memory and processor, computer-readable instruction is stored in the memory, institute
Instruction is stated when being performed by the processor so that the processor perform claim requires the shooting side any one of 1 to 8
Method.
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