CN103021367B - Adaptive adjustment method of color chrominance of display device - Google Patents
Adaptive adjustment method of color chrominance of display device Download PDFInfo
- Publication number
- CN103021367B CN103021367B CN201210550880.0A CN201210550880A CN103021367B CN 103021367 B CN103021367 B CN 103021367B CN 201210550880 A CN201210550880 A CN 201210550880A CN 103021367 B CN103021367 B CN 103021367B
- Authority
- CN
- China
- Prior art keywords
- color
- pixel
- display device
- luminance
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Color Image Communication Systems (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention relates to the field of displays and discloses an adaptive adjustment method of color chrominance of a display device. The method specifically includes the following steps of firstly, subjecting a middle luminance gray scale of the display device to pure color debugging of three primary colors; secondly, reading red (R), green (G) and blue (B) luminance values of pixels of each frame of images, storing the luminance values into corresponding registers, and calculating a weighting luminance value of each pixel according to the R, G and B luminance values of each pixel; thirdly, increasing the maximum value of the R, G and B luminance values of current pixels and storing the maximum value into the corresponding registers when the weighting luminance value of the pixels, which is obtained from step 2, is larger than the middle luminance gray scale debugged in step 1; and reducing the maximum value of the R, G and B luminance values of current pixels, storing the maximum value into the corresponding registers, and displaying the maximum value when the weighting luminance value of the pixels, which is obtained from step 2, is smaller than the middle luminance gray scale debugged in step 1. Three colors under the same luminance are debugged by labor, and debugged (color) states (corresponding to debugging images and colors) are reduced. Color saturation debugging is finished, and color differentials are correspondingly compensated on the basis of different luminance levels.
Description
Technical field
The present invention relates to display device technical field, relate in particular to a kind of self-adapting regulation method of display device color hue.
Background technology
Coloured light three primary colors refer to red, green, blue three looks, the three primary colors of light, and mixing by a certain percentage can present various photochromic.Color TV screen is made up of three kinds of luminous color points of red, green, blue.According to different proportion and strong and weak mixing, can produce natural various color change by these three primary colors.Color is by brightness and the common expression of colourity.
The image quality of for example flat panel TV of display device or display is a very important index that judges its quality, is again a very important aspect for the colored debugging of image quality effect, the especially color TV of flat-panel monitor.Conventionally the content of debugging comprises brightness and colourity two aspects, and colourity is divided into again color harmony saturation degree.Taking 256 GTGs as example, pixel intensity refers to that the brightness value of pixel is between 0 to 255, higher near 255 pixel intensity, and lower near 0 brightness, remainder just belongs to middle tone.The differentiation of this brightness is a kind of definitely differentiation, and near 255 pixels are Gao Guang, and near 0 pixel is shadow, and middle tone is in 128 left and right.Saturation degree refers to gradation of color: for the colorama of same tone, saturation degree more dark colour is distincter purer in other words.For example: after adding white light, redness waters down for pink, its key colour or red, but saturation degree reduces; That is to say, the saturation degree of light color is lower than chromatic colour.
Concerning display device, the lifting of brightness and color saturation is also conflicting, and in the time that LCD TV is carried out image quality debugging, due to the luminance difference opposite sex of same color, in LCD TV, the color effect of different luminance levels also can be different.And final image quality is while having debugged, can only obtain a kind of data of luminance state for each color, for example: if green for the brightness of 128 GTGs debug effect quite after, to brighter luminance level, quite it has sneaked into white, although still there is the feature of green phase, but vividness has reduced, lightness has improved, and becomes light green; For very dark scene, quite sneak into black, vividness reduced, lightness is dimmed, becomes dirty-green.But movement also can only be debugged a register for same green, when light green is similar, dark green and grayish green just different, to image quality, debugging brings very large difficulty for this.
So at present color hue is debugged to the approximative phase that rests on color saturation, while debugging, choose picture as much as possible, by eye-observation, color is carried out to identification.Because saturation degree, the tone register of each color are unique, can only ensure to occur in picture that the color debugging of certain more luminance level is identical, the color of other luminance levels can only be similar to.Therefore in some brightness situation, color and model machine have very big difference, have greatly improved the difficulty of color debugging and have made the effect of image quality bad.If accurately debugging just need to all contrast debugging to each color,
Summary of the invention
The object of the invention is and image quality large for color adjustment method debugging difficulty of the prior art and affected greatly by commissioning staff's subjectivity, image quality effect can not get the technical matters of guarantee simultaneously, and a kind of self-adapting regulation method of color hue is provided.
Object of the present invention realizes by following technical proposals:
A self-adapting regulation method for display device color hue, it specifically comprises following steps: manually display device intermediate luminance GTG is carried out the pure color debugging of three kinds of primary colors 1.; 2. read R, G, the B brightness value of each pixel in every two field picture and deposit corresponding register in, and calculating the weighting brightness value of each pixel according to the R of each pixel, G, B value; 3. in the time that the weighting brightness value of the pixel obtaining in step 2 is greater than the intermediate luminance GTG that step 1 debugs, the maximal value increasing in current pixel R, G, B tri-looks also deposits corresponding register in; In the time that the weighting brightness value of the pixel obtaining in step 2 is less than the intermediate luminance GTG that step 1 debugs, reduces the maximal value in current pixel R, G, B tri-looks and deposit corresponding register in; 4. show on display device according to every two field picture pixel new R, G, B value.
Further, above-mentioned steps 1 is specially: use signal generator to export respectively three kinds of primary colors R, G of intermediate luminance GTG, the pure color image of B, input to respectively on display device to be debugged and contrast model machine, artificial brightness and the colorimetric parameter adjusted, make display device to be debugged consistent with contrast model machine, obtain three kinds of R, G, B-register numerical value that pure color color is corresponding under intermediate luminance GTG.
Further, above-mentioned intermediate luminance GTG is 127, and its total GTG is 0-255.
Further, the weighting brightness value of the each pixel of above-mentioned calculating is specially luminance weighted to the green in same pixel, redness and blue color range average, and green is multiplied by 59%, and redness is multiplied by 30%, and blueness is multiplied by 11%, then is added the brightness value that obtains weighting.
Further, the every raising of the weighting brightness value of pixel 5 rank in above-mentioned steps 3, by current saturation degree 2 rank of purifying.
By adopting above technical scheme, the invention has the beneficial effects as follows: manual debugging just only have three kinds of colors under same brightness, the color reduction of debugging: former color debugging will be debugged color saturation, color shades, the color intensity of 28 kinds of colors; Also need under different brightness, debug, and the present invention only debugs color saturation, color shades, the color intensity of 3 kinds of colors simultaneously.After having debugged for color saturation, for different luminance levels, colored difference is carried out to correspondence compensation; This programme compensates processing by the color saturation to input picture, color intensity, color shades, has ensured the dynamic conformance of the color effect of display.
Brief description of the drawings
Fig. 1 is the self-adapting regulation method process flow diagram of display device color hue of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with Figure of description and specific embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The process flow diagram of display device color hue self-adapting regulation method of the present invention as shown in Figure 1, it specifically comprises following steps.
1. manually display device intermediate luminance GTG is carried out the pure color debugging of three kinds of primary colors.Use signal generator export respectively three kinds of primary colors R(redness that intermediate luminance is 127 GTGs), G(green), B(blueness) pure color image, the pure red R127 B0 G0, pure green R0 G127 B0, the pure blue R0 G0 B127 that on display device to be debugged and contrast model machine, input respectively 127 GTGs (total GTG is 0-255) carry out colour debugging, artificial brightness and the colorimetric parameter adjusted, make display device to be debugged with contrast model machine basically identical after, obtain under middle GTG 127 GTG brightness more than three kinds of R G B-register numerical value that color is corresponding.On display device to be debugged and contrast input respectively the image that GTG brightness is above three kinds of pure colors of 127 on model machine, display effect on artificial cognition display device to be debugged, adjust brightness and colorimetric parameter (brightness, saturation degree, and colorimetric parameter), making display device to be debugged is consistent with contrast model machine people's in the time showing above three kinds of pure color images of 127 GTG brightness visual experience, the method of above-mentioned manual debugging is consistent with adjustment method conventional in prior art, just in prior art, need successively various color under different brightness all to be debugged, and the present invention only need to debug three of intermediate luminance kind of a primary colors.When in prior art, colored debugging is all a lot of picture of eye-observation, each color is adjusted gradually.Can make like this commissioning staff's workload larger.And in the present invention manual debugging just only have three kinds of colors under same brightness, the color reduction of debugging.Color debugging in the past will be debugged color saturation, color shades, the color intensity of 28 kinds of colors; Also need under different brightness, debug, and the present invention only debugs color saturation, color shades, the color intensity of 3 kinds of colors simultaneously.
2. read R, G, the B brightness value of each pixel in every two field picture and deposit corresponding register in, and calculating the weighting brightness value of pixel according to the R of each pixel, G, B value.Computing method are specially luminance weighted to the green in same pixel, redness and blue color range average, and green is multiplied by 59%, and redness is multiplied by 30%, and blueness is multiplied by 11%, then are added (being 100% altogether) and obtain the brightness value of weighting.
3. in the time that the weighting brightness value of the pixel obtaining in step 2 is greater than middle GTG 127 GTG that step 1 debugs, the maximal value increasing in current pixel R G B tri-looks also deposits corresponding register in; In the time that the weighting brightness value of the pixel obtaining in step 2 is less than middle GTG 127 GTG that step 1 debugs, reduces the maximal value in current pixel R G B tri-looks and deposit corresponding register in.For example,, when the every raising of weighting brightness value 5 rank of pixel, by current saturation degree 2 rank of purifying.Different because of gamut range, brightness, the contrast level parameter of different liquid crystal displays, saturation degree is purified and the exponent number of reduction also can be distinguished to some extent.These data those skilled in the art can set accordingly according to different types.Because all colors are all that combination based on R, G, tri-colors of B obtains.The generation of different colours just changed R wherein G the ratio of B, in the present invention, according to current weighting brightness value, automatically adjust R G the ratio of B.Make only to use 3 kinds of pure color patterns to debug, just can no longer debug other colors.System automatically according to the weighting brightness value of pixel adjust R G the ratio of B, to reach the self-adaptation adjustment of color hue.Like this in the time that input image lightness changes, be equivalent to correspondence and adjusted the color hue of image.Promote brightness, increased saturation degree, tone warms relatively; Reduce brightness, reduced saturation degree, tone turns cold relatively.
4. show on display device according to every two field picture pixel new R, G, B value.Display device shows R, G, the B value after adjusting according to step 3, carrys out the color characteristic of dynamic compensation video display apparatus according to the color saturation of the R of intermediate luminance, G, B, color intensity, color shades.
When the complete machine of the 3D32A7000I of the use liquid crystal display LC320EXN-FEP1 of LG company carries out image quality debugging, find that the color saturation of this screen is along with the decline of brightness changes very fast; After luminance raising, color saturation obviously declines.The present invention is according to the optical characteristics difference of liquid crystal display, the weighting brightness of each pixel in calculating input image in real time, and carry out the color characteristic of dynamic compensation video display apparatus according to the color saturation of the R of intermediate luminance, G, B, color intensity, color shades.By the solution of the present invention, after having debugged for color saturation, for different luminance levels, colored difference is carried out to correspondence compensation; This programme compensates processing by the color saturation to input picture, color intensity, color shades, has ensured the dynamic conformance of the color effect of display.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.
Claims (5)
1. a self-adapting regulation method for display device color hue, it specifically comprises following steps: 1. pair display device intermediate luminance GTG carries out the pure color debugging of three kinds of primary colors; 2. read R, G, the B brightness value of each pixel in every two field picture and deposit corresponding register in, and calculating the weighting brightness value of each pixel in image according to the R of each pixel, G, B value; 3. in the time that the weighting brightness value of the pixel obtaining in step 2 is greater than the intermediate luminance GTG that step 1 debugs, the maximal value increasing in current pixel R, G, B tri-looks also deposits corresponding register in; In the time that the weighting brightness value of the pixel obtaining in step 2 is less than the intermediate luminance GTG that step 1 debugs, reduces the maximal value in current pixel R, G, B tri-looks and deposit corresponding register in; 4. show on display device according to every two field picture pixel new R, G, B value.
2. the self-adapting regulation method of display device color hue as claimed in claim 1, it is characterized in that described step 1 is specially: use signal generator to export respectively the pure color image of three kinds of primary color red of intermediate luminance GTG, green, blueness, input to respectively on display device to be debugged and contrast model machine, artificial brightness and the colorimetric parameter adjusted, make display device to be debugged consistent with contrast model machine, obtain three kinds of R, G, B-register numerical value that pure color color is corresponding under intermediate luminance GTG.
3. the self-adapting regulation method of display device color hue as claimed in claim 2, is characterized in that described intermediate luminance GTG is 127, and its total GTG is 0-255.
4. the self-adapting regulation method of display device color hue as claimed in claim 3, it is characterized in that the weighting brightness value that calculates each pixel in described step 2 is specially luminance weighted to the green in same pixel, redness and blue color range average, green is multiplied by 59%, redness is multiplied by 30%, blueness is multiplied by 11%, then is added the weighting brightness value that obtains each pixel.
5. the self-adapting regulation method of display device color hue as claimed in claim 3, is characterized in that the every raising of weighting brightness value 5 rank of pixel in described step 3, by current saturation degree 2 rank of purifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550880.0A CN103021367B (en) | 2012-12-18 | 2012-12-18 | Adaptive adjustment method of color chrominance of display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550880.0A CN103021367B (en) | 2012-12-18 | 2012-12-18 | Adaptive adjustment method of color chrominance of display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103021367A CN103021367A (en) | 2013-04-03 |
| CN103021367B true CN103021367B (en) | 2014-11-26 |
Family
ID=47969903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210550880.0A Active CN103021367B (en) | 2012-12-18 | 2012-12-18 | Adaptive adjustment method of color chrominance of display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103021367B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554734A (en) * | 2018-05-31 | 2019-12-10 | 中兴通讯股份有限公司 | Display screen adjusting method and device and computer readable storage medium |
| CN110400548B (en) | 2019-07-05 | 2021-02-02 | 深圳市华星光电技术有限公司 | White balance adjusting system and method for display |
| CN112348759A (en) * | 2020-11-25 | 2021-02-09 | Oppo广东移动通信有限公司 | Image display method and apparatus, terminal and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000341716A (en) * | 1999-05-31 | 2000-12-08 | Matsushita Electric Ind Co Ltd | Gradation correction circuit and its correction method |
| KR100765751B1 (en) * | 2005-06-08 | 2007-10-15 | 삼성전자주식회사 | Method and apparatus for interpolation of interlaced CMYG color format |
| CN101193319A (en) * | 2006-11-29 | 2008-06-04 | 帆宣系统科技股份有限公司 | Gain decision method and device for gray-level white balance of display device |
| CN102542962A (en) * | 2012-02-07 | 2012-07-04 | 深圳市华星光电技术有限公司 | White balance adjustment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007288470A (en) * | 2006-04-17 | 2007-11-01 | Fuji Xerox Co Ltd | Unit and method for color adjustment, unit and method for generating color conversion parameter, unit and method for color conversion, color adjustment program, color conversion parameter generation program, color conversion program, and recording medium |
-
2012
- 2012-12-18 CN CN201210550880.0A patent/CN103021367B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000341716A (en) * | 1999-05-31 | 2000-12-08 | Matsushita Electric Ind Co Ltd | Gradation correction circuit and its correction method |
| KR100765751B1 (en) * | 2005-06-08 | 2007-10-15 | 삼성전자주식회사 | Method and apparatus for interpolation of interlaced CMYG color format |
| CN101193319A (en) * | 2006-11-29 | 2008-06-04 | 帆宣系统科技股份有限公司 | Gain decision method and device for gray-level white balance of display device |
| CN102542962A (en) * | 2012-02-07 | 2012-07-04 | 深圳市华星光电技术有限公司 | White balance adjustment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103021367A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105578094B (en) | A kind of image edge-blending processing system | |
| CN104575403B (en) | Display device, method for driving display device, and electronic device | |
| TWI393102B (en) | Reduced display method for color separation of liquid crystal display | |
| CN102394041B (en) | White balance adjustment method | |
| CN109979401A (en) | Driving method, driving device, display equipment and computer-readable medium | |
| CN107919099B (en) | Method for driving liquid crystal display, device and equipment | |
| CN1988628A (en) | Self adaptive image display method for environment light | |
| CN103383830B (en) | Method for viewing virtual display outputs | |
| US20110075043A1 (en) | Color shift solution for dynamic contrast ratio in a liquid crystal display | |
| TWI547931B (en) | Method for controlling display | |
| CN111968590B (en) | Picture display adjusting method and device, storage medium and display equipment | |
| CN102044230A (en) | Liquid crystal display device, color gamut conversion method thereof and color gamut conversion circuit | |
| CN106454303B (en) | RGBW image processing methods and device | |
| CN109246405A (en) | The method of adjustment and its system of the uniformity of image tone | |
| CN105282531A (en) | Low grayscale white balance control method and device | |
| Lin et al. | Color breakup suppression by local primary desaturation in field-sequential color LCDs | |
| CN103021367B (en) | Adaptive adjustment method of color chrominance of display device | |
| CN102542998B (en) | Gamma correction method | |
| CN106782347B (en) | Correct the method and device of LED backlight display white point | |
| CN105306917B (en) | Low gray level white balance control method, control system and display | |
| Song et al. | Assessment of image quality degraded by tone rendering distortion | |
| CN108932936A (en) | The adjusting method and display device of gray-scale intensity | |
| CN115798402B (en) | Pixel multiplexing-based brightness compensation method | |
| CN101833927B (en) | Self-adaptive control system of LED backlight source | |
| CN106328037A (en) | Drive method of four-color display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |