CN106507081A - A kind of image processing method and device - Google Patents
A kind of image processing method and device Download PDFInfo
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- CN106507081A CN106507081A CN201610889575.2A CN201610889575A CN106507081A CN 106507081 A CN106507081 A CN 106507081A CN 201610889575 A CN201610889575 A CN 201610889575A CN 106507081 A CN106507081 A CN 106507081A
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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
- H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
- H04N23/16—Optical arrangements associated therewith, e.g. for beam-splitting or for colour correction
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
The invention discloses a kind of image processing method and device, its method is comprised the following steps：Luminance compensation table of the record black and white camera for different-colour different colours；Obtain current environment colour temperature；According to current environment colour temperature, the colour brightness offset for obtaining black white image from the luminance compensation table needed under current environment colour temperature；By black and white camera and color camera, the black and white under Same Scene and coloured image is obtained；Colour brightness offset according to needed for the black white image is under current environment colour temperature, is modified to black white image brightness；And the revised black white image is merged with the coloured image.The present invention passes through, under different-colour, the sensitive color of black and white camera to be made to compensate accordingly, corrects the brightness exception of these color regions, alleviates black and white camera because to the abnormal problem of brightness caused by Color-sensitive.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of image processing method and device.
Background technology
With the fast development of mobile phone camera function in recent years, consumer to have more power camera demand gradually
Rise.The photographed scene that night scene is commonly used as user, its effect optimization can effectively lift the Consumer's Experience that camera is taken pictures, mesh
Before, night scene shooting style commonly used in the trade is：Using a colour imagery shot（RGB cameras）With black and white camera（MNO is imaged
Head）, the shooting effect of night scene is lifted by the image of two cameras shootings of fusion.As in night scene photographer, black and white is taken the photograph
As the brightness of head, details, noise can be better than colour imagery shot, because during image co-registration so that colour imagery shot is provided
Color, black and white camera provide brightness, details etc., so as to synthesize brightness, details and a noise all than colour imagery shot artwork
As good picture.But in current technique, black and white camera causes in some colors, black and white to ambient color temp. sensitive
The brightness of image can be partially dark or partially bright, and the image after causing to merge occurs in corresponding color that brightness is partially bright, saturation respectively
Degree is low, or the brightness higher situation of dark, saturation degree partially；When environment colour temperature changes from high color temperature to low colour temperature, black and white
In camera, blue region brightness changes to partially dark from overexposure, and red area is from secretly changing to partially overexposure.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, there is provided a kind of image processing method and device, its method
It is that the brightness for correcting these color regions is different by, under different-colour, making corresponding compensation to the sensitive color of black and white camera
Often, black and white camera is alleviated because to the abnormal problem of brightness caused by Color-sensitive.
The purpose of the present invention is achieved through the following technical solutions：A kind of image processing method, comprises the following steps：
Luminance compensation table of the record black and white camera for different-colour different colours；Obtain current environment colour temperature；According to current environment color
Temperature, the color-brightness offset value for obtaining black white image from the luminance compensation table needed under current environment colour temperature；By black
Bai Xiangji and color camera, obtain the black and white under Same Scene and coloured image；According to the black white image in current environment color
Color-brightness offset value needed for temperature is lower, is modified to black white image brightness；And the revised black white image is same
The coloured image is merged.
Color-the brightness offset value be by carrying out curve fitting to the data in the luminance compensation table after obtain.
According to current environment colour temperature, find in luminance compensation table closest to data as the color-brightness offset value.
Methods described also includes generating luminance compensation table, and generating luminance compensation table includes following sub-step：For with of the same colour
Card, obtains the colour chart picture of colored and black and white under multiple different-colours respectively；According to colored colour chart picture and black and white colour chart
Picture, draws the corresponding brightness offset value of black and white card graphic under different-colour.
Methods described also includes being carried out curve fitting according to obtained brightness offset value.
Included the step of calculating brightness offset value according to colored colour chart picture and black and white card graphic：By the colored colour atla
Image switchs to GTG colour chart picture；Contrast the GTG colour chart picture and the black and white card graphic, calculate colour atla picture each
The corresponding brightness offset value of black and white card graphic in color block.
Compensation Value Data comprising following color temperature light sources in the luminance compensation table：D75 light sources, D65 light sources, D50 light
Source, TL84 light sources, CWF light sources, A light sources and tengsten lamp.
Obtaining current environment colour temperature includes following sub-step：Current environment light is read by colour imagery shot and is irradiated to ash
Red green value and blue green value on card；According to red green value and blue green value, current environment is obtained by inquiring about corresponding color meter
Colour temperature.
The black white image brightness is modified including following sub-step：Judge each pixel in the coloured image
Color；According to the colouring information of corresponding pixel points in the color-brightness offset value and the coloured image, the black and white is obtained
The intensity modifier value of each pixel in image；Gamma correction is carried out to night scene black white image according to intensity modifier value.
Methods described also includes：The coloured image and the black white image are mated；During brightness correction,
It is modified only for the region for completing to mate, ignores the region that cannot mate；And by the black white image with the colour
When image is merged, merged only for the region for completing to mate, ignored the region that cannot mate.
The step of obtaining current environment colour temperature is completed simultaneously with the step of obtaining the black white image and the coloured image.
A kind of image processing apparatus, including:Logging modle, for recording black and white camera for different-colour different colours
Luminance compensation table；Colour temperature acquisition module, obtains current environment colour temperature；Offset acquisition module, according to current environment colour temperature, from institute
State；Image collection module,
By black and white camera and color camera, the black and white under Same Scene and coloured image is obtained；Correcting module, according to the artwork master
Color-brightness offset value as needed under current environment colour temperature, is modified to black white image brightness；And Fusion Module,
Black white image is merged with coloured image.
The invention has the beneficial effects as follows：Method in the present invention passes through under different-colour environment, sensitive to black and white camera
Color make corresponding compensate, so as to correct the brightness exception of these color regions, alleviate black and white camera to a great extent
Because to the abnormal problem of brightness caused by Color-sensitive.
Description of the drawings
Fig. 1 is the flow chart of one embodiment of image processing method in the present invention；
Fig. 2 is the schematic diagram of image processing apparatus in the present invention.
Specific embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
Described below.
Embodiment one
As shown in figure 1, a kind of image processing method, comprises the following steps：
Luminance compensation table of the record black and white camera for different-colour different colours.
Generating luminance compensation table includes following sub-step：For same colour atla, obtained under multiple different-colours respectively color
The colour chart picture of color and black and white；According to colored colour chart picture and black and white card graphic, black and white card graphic under different-colour is drawn
Corresponding brightness offset value.
Included the step of calculating brightness offset value according to colored colour chart picture and black and white card graphic：By the colored colour atla
Image switchs to GTG colour chart picture；Contrast the GTG colour chart picture and the black and white card graphic, calculate colour atla picture each
The corresponding brightness offset value of black and white card graphic in color block.
Methods described also includes being carried out curve fitting according to obtained brightness offset value.
Compensation Value Data comprising following color temperature light sources in the luminance compensation table：D75 light sources, D65 light sources, D50 light
Source, TL84 light sources, CWF light sources, A light sources and tengsten lamp.
Obtain current environment colour temperature.
Obtaining current environment colour temperature includes following sub-step：Current environment light is read by colour imagery shot and is irradiated to ash
Red green value and blue green value on card；According to red green value and blue green value, current environment is obtained by inquiring about corresponding color meter
Colour temperature.
The method that current environment colour temperature can also adopt other automatic or manuals to obtain environment colour temperature is obtained, for example, can be adopted
Current environment colour temperature is obtained with color temperature sensor.
According to current environment colour temperature, black white image is obtained from the luminance compensation table needed under current environment colour temperature
Color-brightness offset value.
Color-the brightness offset value be by carrying out curve fitting to the data in the luminance compensation table after obtain.
When obtaining color-brightness offset value, according to current environment colour temperature, find in luminance compensation table closest to data and make
For the color-brightness offset value.
By black and white camera and color camera, the black and white under Same Scene and coloured image is obtained.
The step of the step of acquisition current environment colour temperature is early than the acquisition black white image and the coloured image is held
OK.
Color-brightness offset value according to needed for the black white image is under current environment colour temperature, to black white image brightness
It is modified；And the revised black white image is merged with the coloured image.
The black white image brightness is modified including following sub-step：Judge each pixel in the coloured image
Color；According to the colouring information of corresponding pixel points in the color-brightness offset value and the coloured image, the black and white is obtained
The intensity modifier value of each pixel in image；Gamma correction is carried out to night scene black white image according to intensity modifier value.
Methods described also includes：The coloured image and the black white image are mated；During brightness correction,
It is modified only for the region for completing to mate, ignores the region that cannot mate；And by the black white image with the colour
When image is merged, merged only for the region for completing to mate, ignored the region that cannot mate.
Embodiment two
With the difference of embodiment one, the present embodiment is that the step of obtaining current environment colour temperature is later than the acquisition artwork master
The step of picture and the coloured image, executes.
Embodiment three
The present embodiment is the step of obtaining current environment colour temperature with the difference of embodiment one and obtains the black white image
Executed with the step of the coloured image simultaneously.
As shown in Fig. 2 a kind of image processing apparatus, including:Logging modle, for recording black and white camera for different-colour
The luminance compensation table of different colours；Colour temperature acquisition module, obtains current environment colour temperature；Offset acquisition module, according to working as front ring
Border colour temperature, the color-brightness offset value for obtaining black white image from the luminance compensation table needed under current environment colour temperature；Figure
As acquisition module, by black and white camera and color camera, the black and white under Same Scene and coloured image is obtained；Correcting module, root
According to the required color-brightness offset value under current environment colour temperature of the black white image, black white image brightness is modified；With
And Fusion Module, black white image is merged with coloured image.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change, then all should be in the protection domains of claims of the present invention without departing from the spirit and scope of the present invention
Interior.
Claims (12)
1. a kind of image processing method, it is characterised in that：Comprise the following steps：
Luminance compensation table of the record black and white camera for different-colour different colours；
Obtain current environment colour temperature；
According to current environment colour temperature, the face for obtaining black white image from the luminance compensation table needed under current environment colour temperature
Color-brightness offset value；
By black and white camera and color camera, the black and white under Same Scene and coloured image is obtained；
Color-brightness offset value according to needed for the black white image is under current environment colour temperature, is carried out to black white image brightness
Revise；And the revised black white image is merged with the coloured image.
2. image processing method according to claim 1, it is characterised in that the color-brightness offset value is by right
Data in the luminance compensation table are obtained after carrying out curve fitting.
3. image processing method according to claim 1, it is characterised in that according to current environment colour temperature, in luminance compensation
Find in table closest to data as the color-brightness offset value.
4. image processing method according to claim 1, it is characterised in that：Methods described also includes generating luminance compensation
Table, generating luminance compensation table includes following sub-step：
For same colour atla, the colour chart picture of colored and black and white is obtained under multiple different-colours respectively；
According to colored colour chart picture and black and white card graphic, the corresponding luminance compensation of black and white card graphic under different-colour is drawn
Value.
5. image processing method according to claim 4, it is characterised in that：Methods described is also included according to obtained bright
Degree offset carries out curve fitting.
6. image processing method according to claim 4, it is characterised in that according to colored colour chart picture and black and white colour chart
As including the step of calculating brightness offset value：
The colored colour chart picture is switched to GTG colour chart picture；
Contrast the GTG colour chart picture and the black and white card graphic, calculate black and white colour chart in colour atla picture each color block
As corresponding brightness offset value.
7. image processing method according to claim 1, it is characterised in that：Include following colour temperatures in the luminance compensation table
The compensation Value Data of light source：D75 light sources, D65 light sources, D50 light sources, TL84 light sources, CWF light sources, A light sources and tengsten lamp.
8. image processing method according to claim 1, it is characterised in that：Obtaining current environment colour temperature includes following sub-step
Suddenly：
Current environment light is read by colour imagery shot and is irradiated to the red green value in gray card and blue green value；
According to red green value and blue green value, current environment colour temperature is obtained by inquiring about corresponding color meter.
9. image processing method according to claim 1, it is characterised in that：Bag is modified to the black white image brightness
Include following sub-step：
Judge the color of each pixel in the coloured image；
According to the colouring information of corresponding pixel points in the color-brightness offset value and the coloured image, the black and white is obtained
The intensity modifier value of each pixel in image；
Gamma correction is carried out to night scene black white image according to intensity modifier value.
10. image processing method according to claim 9, it is characterised in that methods described also includes：
The coloured image and the black white image are mated；
During brightness correction, it is modified only for the region for completing to mate, ignores the region that cannot mate；And
When the black white image is merged with the coloured image, merged only for the region for completing to mate, ignored
The region that cannot mate.
11. image processing methods according to claim 1, it is characterised in that obtain current environment colour temperature the step of with obtain
The step of taking the black white image and the coloured image is while complete.
12. a kind of image processing apparatus, it is characterised in that include:
Logging modle, for recording luminance compensation table of the black and white camera for different-colour different colours；
Colour temperature acquisition module, obtains current environment colour temperature；
Offset acquisition module, according to current environment colour temperature, obtains black white image in current environment from the luminance compensation table
Color-brightness offset value needed under colour temperature；
Image collection module, by black and white camera and color camera, obtains the black and white under Same Scene and coloured image；
Correcting module, the color-brightness offset value according to needed for the black white image is under current environment colour temperature, to black white image
Brightness is modified；And Fusion Module, black white image is merged with coloured image.
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| CN201610889575.2A CN106507081B (en) | 2016-10-12 | 2016-10-12 | A kind of image processing method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846583A (en) * | 2017-10-27 | 2018-03-27 | 维沃移动通信有限公司 | A kind of image shadow compensating method and mobile terminal |
| WO2019137396A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Image processing method and device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6803949B1 (en) * | 1995-12-27 | 2004-10-12 | Canon Kabushiki Kaisha | Image sensing apparatus and method |
| CN1988628A (en) * | 2006-12-28 | 2007-06-27 | 上海广电（集团）有限公司中央研究院 | Self adaptive image display method for environment light |
| CN101080025A (en) * | 2007-06-18 | 2007-11-28 | 东莞黄江达裕科技电子厂 | A white balance adjustment method and system |
| KR20090020784A (en) * | 2007-08-24 | 2009-02-27 | 엘지전자 주식회사 | Apparatus and method of display |
| CN103986875A (en) * | 2014-05-29 | 2014-08-13 | 宇龙计算机通信科技(深圳)有限公司 | Image acquiring device, method and terminal and video acquiring method |
| JP2014165865A (en) * | 2013-02-27 | 2014-09-08 | Canon Inc | Image processing device and image processing method, program and recording medium |
| CN104486609A (en) * | 2015-01-26 | 2015-04-01 | 南京巨鲨显示科技有限公司 | Color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow |
| CN104581099A (en) * | 2014-12-04 | 2015-04-29 | 广东欧珀移动通信有限公司 | Shooting method and terminal |
| CN105049718A (en) * | 2015-07-06 | 2015-11-11 | 深圳市金立通信设备有限公司 | Image processing method and terminal |
| CN105208360A (en) * | 2015-09-23 | 2015-12-30 | 青岛海信移动通信技术股份有限公司 | Image preview method and device of intelligent terminal and terminal |
| CN105336307A (en) * | 2015-11-18 | 2016-02-17 | 深圳创维－Rgb电子有限公司 | Method and system for correcting gamma curve of display based on color temperature |
| TW201613336A (en) * | 2014-09-23 | 2016-04-01 | Hon Hai Prec Ind Co Ltd | Control system and method for taking pictures |
-
2016
- 2016-10-12 CN CN201610889575.2A patent/CN106507081B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6803949B1 (en) * | 1995-12-27 | 2004-10-12 | Canon Kabushiki Kaisha | Image sensing apparatus and method |
| CN1988628A (en) * | 2006-12-28 | 2007-06-27 | 上海广电（集团）有限公司中央研究院 | Self adaptive image display method for environment light |
| CN101080025A (en) * | 2007-06-18 | 2007-11-28 | 东莞黄江达裕科技电子厂 | A white balance adjustment method and system |
| KR20090020784A (en) * | 2007-08-24 | 2009-02-27 | 엘지전자 주식회사 | Apparatus and method of display |
| JP2014165865A (en) * | 2013-02-27 | 2014-09-08 | Canon Inc | Image processing device and image processing method, program and recording medium |
| CN103986875A (en) * | 2014-05-29 | 2014-08-13 | 宇龙计算机通信科技(深圳)有限公司 | Image acquiring device, method and terminal and video acquiring method |
| TW201613336A (en) * | 2014-09-23 | 2016-04-01 | Hon Hai Prec Ind Co Ltd | Control system and method for taking pictures |
| CN104581099A (en) * | 2014-12-04 | 2015-04-29 | 广东欧珀移动通信有限公司 | Shooting method and terminal |
| CN104486609A (en) * | 2015-01-26 | 2015-04-01 | 南京巨鲨显示科技有限公司 | Color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow |
| CN105049718A (en) * | 2015-07-06 | 2015-11-11 | 深圳市金立通信设备有限公司 | Image processing method and terminal |
| CN105208360A (en) * | 2015-09-23 | 2015-12-30 | 青岛海信移动通信技术股份有限公司 | Image preview method and device of intelligent terminal and terminal |
| CN105336307A (en) * | 2015-11-18 | 2016-02-17 | 深圳创维－Rgb电子有限公司 | Method and system for correcting gamma curve of display based on color temperature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846583A (en) * | 2017-10-27 | 2018-03-27 | 维沃移动通信有限公司 | A kind of image shadow compensating method and mobile terminal |
| CN107846583B (en) * | 2017-10-27 | 2020-09-01 | 维沃移动通信有限公司 | Image shadow compensation method and mobile terminal |
| WO2019137396A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Image processing method and device |
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