CN109361907A - Method, apparatus, terminal and the storage medium of camera shooting night scene sky color - Google Patents
Method, apparatus, terminal and the storage medium of camera shooting night scene sky color Download PDFInfo
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- CN109361907A CN109361907A CN201811369488.XA CN201811369488A CN109361907A CN 109361907 A CN109361907 A CN 109361907A CN 201811369488 A CN201811369488 A CN 201811369488A CN 109361907 A CN109361907 A CN 109361907A
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- night scene
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- sky
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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
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
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- Studio Devices (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
The present invention relates to the methods of camera shooting night scene sky color, its implementation is as follows, obtain the night scene image for having sky, night scene image is divided into flat region and texture area, according to grey and the color contrast judgement flat region dead zone Zhong Tian, B gain adjustment only is carried out to day dead zone, it is individually handled for night scene sky portion, first image is split, pass through the judgement to sky again, partially blue processing is carried out just for sky portion, this can improve the inclined reddish yellow of existing disposed of in its entirety bring entirety photo or partially blue problem.There is the Scenery Imaging effect that will not influence other parts while good behaviour on high.
Description
Technical field
The present invention relates to technical field of image processing, more specifically to a kind of camera shooting night scene sky color
Method, apparatus, terminal and storage medium.
Background technique
In the prior art, camera processing of color when shooting photo is first to carry out AWB (AutoWhite
Balance color matrices correction) is carried out again, determines final color representation eventually by the R gain and B gain of AWB；
AWB passes through the R/G for demarcating each light source, and B/G parameter determines corresponding gray area range, eventually by natural environment
The range of each light source is fallen on to determine corresponding lighting environment, and passes through a series of ISP (Image Signal such as colour correction
Process) parameter processing is finally reached the purpose of color balance using final R gain and B gain.But this processing side
Formula is for night scene, if perhaps B gain can bring image whole partially red yellow or whole partially blue feelings for whole increase R gain
Condition.Disposed of in its entirety cannot bring ideal effect to the sky effect portion of night scene.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of camera shooting night
The method of red-spotted stonecrop sky color；
Additionally provide device, a kind of terminal and a kind of storage medium of a kind of camera shooting night scene sky color；
Additionally provide method, apparatus, terminal and the storage medium of a kind of camera shooting night scene sky color.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of method for constructing camera shooting night scene sky color, its implementation are as follows:
Step 1: obtaining the night scene image for having sky；
Step 2: night scene image is divided into flat region and texture area；
Step 3: according to grey and the color contrast judgement flat region dead zone Zhong Tian；
Step 4: only carrying out B gain adjustment to day dead zone.
The method of camera shooting night scene sky color of the present invention, wherein further include method in the first step, obtain
Before taking the night scene image, environment is judged whether to night, if extending the exposure of camera shooting to night according to environment light
Between light time, and increase camera gain.
The method of camera shooting night scene sky color of the present invention, wherein in the third step, the day dead zone is not
Comprising limbus, pixel variation is relatively gentle, and dark pixel is more.
The method of camera shooting night scene sky color of the present invention, wherein further include method in the 4th step:
Tone after carrying out B gain adjustment to day dead zone carries out judging whether to meet the requirements, and B gain is then re-started when undesirable
Adjustment.
The method of camera shooting night scene sky color of the present invention, wherein in the 4th step, judge whether to meet
The mode of standard is: the day dead zone B gain is adjusted, so that day dead zone histogram dynamic range adjusts, and according to histogram icon
Quasi- deviation judges image hierarchy.
A kind of device of camera shooting night scene sky color, according to the method for above-mentioned camera shooting night scene sky color,
Wherein, including image collection module and image processing module；
Described image obtains module, for obtaining the night scene image for having sky；
Described image processing module, for night scene image to be divided into flat region and texture area, according to grey and color ratio
To the flat region dead zone Zhong Tian is judged, B gain adjustment only is carried out to day dead zone.
The device of camera shooting night scene sky color of the present invention, wherein described image processing module judges flat
Day dead zone standard in area is: not including limbus, pixel variation is relatively gentle, and dark pixel is more.
The device of camera shooting night scene sky color of the present invention, wherein described image processing module is to day dead zone
After carrying out a B gain adjustment, tone adjusted is carried out judging whether to meet the requirements, then be carried out again when not being inconsistent standardization
B gain adjustment is to meeting the requirements.
A kind of terminal, including memory, processor and storage can transport in the memory and on the processor
Capable computer program, wherein the processor is realized when executing the computer program such as the step of the above method
A kind of computer readable storage medium, the computer-readable recording medium storage have computer program, wherein institute
It states and realizes when computer program is executed by processor such as the step of the above method.
The beneficial effects of the present invention are: obtain have sky night scene image, by night scene image be divided into flat region and
Texture area only carries out B gain adjustment to day dead zone, for night scene according to grey and the color contrast judgement flat region dead zone Zhong Tian
Sky portion is individually handled, and is first split to image, then by the judgement to sky, is carried out just for sky portion inclined
Indigo plant processing, this can improve the inclined reddish yellow of existing disposed of in its entirety bring entirety photo or partially blue problem.Have on high good
It will not influence the Scenery Imaging effect of other parts while performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below in conjunction with attached drawing and reality
Applying example, the invention will be further described, and the accompanying drawings in the following description is only section Example of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other accompanying drawings:
Fig. 1 is the method flow diagram of the camera shooting night scene sky color of present pre-ferred embodiments；
Fig. 2 is the device principle block diagram of the camera shooting night scene sky color of present pre-ferred embodiments.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Technical solution in example carries out clear, complete description, it is clear that and described embodiment is section Example of the invention, and
It is not all of embodiment.Based on the embodiment of the present invention, those of ordinary skill in the art are not before making the creative labor
Every other embodiment obtained is put, protection scope of the present invention is belonged to.
The night scene sky image processing method of present pre-ferred embodiments, as shown in Figure 1, its implementation is as follows:
S01: the night scene image for having sky is obtained；
S02: night scene image is divided into flat region and texture area；
S03: according to grey and the color contrast judgement flat region dead zone Zhong Tian；
S04: B gain adjustment only is carried out to day dead zone；
It is individually handled for night scene sky portion, first image is split, then pass through the judgement to sky, needle
Partially blue processing is carried out to sky portion, this can improve the inclined reddish yellow of existing disposed of in its entirety bring entirety photo or partially blue ask
Topic.There is the Scenery Imaging effect that will not influence other parts while good behaviour on high.
Preferably, further include method in the first step, before obtaining night scene image, judge environment whether to night according to environment light
Evening if extending the time for exposure of camera shooting to night, and increases camera gain；Before obtaining night scene image, first to camera
Prolonging exposure time is carried out for the darker feature of night environment and increases the adjustment of gain, helps to improve the entirety of image
Quality.
Preferably, in third step, day dead zone does not include limbus, and pixel variation is relatively gentle, and dark pixel is more；It presses
Plant standard like this to distinguish the day dead zone in flat region and other regions, the accurate identification day dead zone of energy.
Preferably, further include method in the 4th step: the tone after carrying out B gain adjustment to day dead zone judges whether
It meets the requirements, B gain adjustment is then re-started when undesirable；The B gain adjustment of day dead zone adjustment is automatically examined
Core adjustment, is convenient for automatic processing, while also avoiding manually adjusting the problem that inaccuracy is adjusted when B gain.
Preferably, in the 4th step, judge whether that standard compliant mode is: adjustment day dead zone B gain, so that day dead zone is straight
Square figure dynamic range adjustment, and image hierarchy is judged according to histogram criteria deviation.
A kind of device of camera shooting night scene sky color, as shown in Fig. 2, shooting night scene sky color according to above-mentioned camera
Color method, including image collection module 1 and image processing module 2；
Image collection module, for obtaining the night scene image for having sky；
Image processing module is sentenced for night scene image to be divided into flat region and texture area according to grey and color comparison
The disconnected dead zone flat region Zhong Tian, only carries out B gain adjustment to day dead zone；
It is individually handled for night scene sky portion, first image is split, then pass through the judgement to sky, needle
Partially blue processing is carried out to sky portion, this can improve the inclined reddish yellow of existing disposed of in its entirety bring entirety photo or partially blue ask
Topic.There is the Scenery Imaging effect that will not influence other parts while good behaviour on high.
Preferably, image processing module judges that the day dead zone standard in flat region is: not including limbus, pixel variation
It is relatively gentle, and dark pixel is more；The day dead zone and other regions in flat region are distinguished according to such standard, it can be accurate
Identify day dead zone.
Preferably, after image processing module carries out a B gain adjustment to day dead zone, tone adjusted is judged
Whether meet the requirements, then carries out B gain adjustment when not being inconsistent standardization again to meeting the requirements；To the B gain tune of day dead zone adjustment
Whole progress automatically audit adjustment, adjustment inaccuracy asks when being convenient for automatic processing, while also avoiding manually adjusting B gain
Topic.
A kind of terminal including memory, processor and stores the calculating that can be run in memory and on a processor
Machine program, processor are realized when executing computer program such as the step of the above method
A kind of computer readable storage medium, computer-readable recording medium storage have computer program, computer program
It realizes when being executed by processor such as the step of the above method.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of method of camera shooting night scene sky color, which is characterized in that implementation method is as follows:
Step 1: obtaining the night scene image for having sky；
Step 2: night scene image is divided into flat region and texture area；
Step 3: according to grey and the color contrast judgement flat region dead zone Zhong Tian；
Step 4: only carrying out B gain adjustment to day dead zone.
2. the method for camera shooting night scene sky color according to claim 1, which is characterized in that in the first step also
Including method, before obtaining the night scene image, environment is judged whether to night, if extending to night according to environment light
The time for exposure of camera shooting, and increase camera gain.
3. the method for camera shooting night scene sky color according to claim 1, which is characterized in that in the third step,
The day dead zone does not include limbus, and pixel variation is relatively gentle, and dark pixel is more.
4. the method for camera shooting night scene sky color according to claim 1, which is characterized in that in the 4th step,
Further include method: the tone after carrying out B gain adjustment to day dead zone carries out judging whether to meet the requirements, and then weighs when undesirable
It is new to carry out B gain adjustment.
5. the method for camera shooting night scene sky color according to claim 4, which is characterized in that in the 4th step,
Judging whether standard compliant mode is: the day dead zone B gain is adjusted, so that day dead zone histogram dynamic range adjusts, and
Image hierarchy is judged according to histogram criteria deviation.
6. a kind of device of camera shooting night scene sky color, -5 any cameras shoot night scene day according to claim 1
The method of empty color, which is characterized in that including image collection module and image processing module；
Described image obtains module, for obtaining the night scene image for having sky；
Described image processing module is sentenced for night scene image to be divided into flat region and texture area according to grey and color comparison
The disconnected dead zone flat region Zhong Tian, only carries out B gain adjustment to day dead zone.
7. the device of camera shooting night scene sky color according to claim 6, which is characterized in that described image handles mould
Block judges that the day dead zone standard in flat region is: not including limbus, pixel variation is relatively gentle, and dark pixel is more.
8. the device of camera shooting night scene sky color according to claim 6, which is characterized in that described image handles mould
After block carries out a B gain adjustment to day dead zone, tone adjusted is carried out judging whether to meet the requirements, when not being inconsistent standardization
B gain adjustment is then carried out again to meeting the requirements.
9. a kind of terminal, including memory, processor and storage can be run in the memory and on the processor
Computer program, which is characterized in that the processor is realized when executing the computer program as claim 1 to 5 is any
The step of item the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 5 of realization the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369488.XA CN109361907A (en) | 2018-11-16 | 2018-11-16 | Method, apparatus, terminal and the storage medium of camera shooting night scene sky color |
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| CN201811369488.XA CN109361907A (en) | 2018-11-16 | 2018-11-16 | Method, apparatus, terminal and the storage medium of camera shooting night scene sky color |
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| CN105761230A (en) * | 2016-03-16 | 2016-07-13 | 西安电子科技大学 | Single image defogging method based on sky region segmentation processing |
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| CN106791402A (en) * | 2016-12-23 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of mobile terminal photographic method and terminal |
| CN108024105A (en) * | 2017-12-14 | 2018-05-11 | 珠海市君天电子科技有限公司 | Image color adjusting method, device, electronic equipment and storage medium |
| CN108156435A (en) * | 2017-12-25 | 2018-06-12 | 广东欧珀移动通信有限公司 | Image processing method and device, computer readable storage medium and computer equipment |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394320A (en) * | 2014-11-26 | 2015-03-04 | 三星电子（中国）研发中心 | Image processing method, device and electronic equipment |
| CN105005966A (en) * | 2015-01-16 | 2015-10-28 | 西安电子科技大学 | Haze-removing algorithm of single image based on physical properties of yellow haze |
| CN106296746A (en) * | 2015-06-26 | 2017-01-04 | 联发科技股份有限公司 | Image processing method and image processor |
| CN105761230A (en) * | 2016-03-16 | 2016-07-13 | 西安电子科技大学 | Single image defogging method based on sky region segmentation processing |
| CN106791402A (en) * | 2016-12-23 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of mobile terminal photographic method and terminal |
| CN108024105A (en) * | 2017-12-14 | 2018-05-11 | 珠海市君天电子科技有限公司 | Image color adjusting method, device, electronic equipment and storage medium |
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Application publication date: 20190219 |