CN102426828A - Screen edge color adjusting method and device - Google Patents
Screen edge color adjusting method and device Download PDFInfo
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- CN102426828A CN102426828A CN2011102976645A CN201110297664A CN102426828A CN 102426828 A CN102426828 A CN 102426828A CN 2011102976645 A CN2011102976645 A CN 2011102976645A CN 201110297664 A CN201110297664 A CN 201110297664A CN 102426828 A CN102426828 A CN 102426828A
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Abstract
The invention discloses a screen edge color adjusting method, which comprises the steps of: S1, obtaining photographed images when a screen displays a preset image at each grey level; S2, setting up a corresponding relationship between a base color position of the screen in the photographed images and the practical base color position of the screen; S3, setting up a pixel grey value table which is completely corresponding to the preset images and setting a pixel grey value as an average value of all the internal pixel grey values; S4, adjusting the pixel grey values of all the edge regions in the pixel grey value table according to the photographed images; S5, assigning values to the adjusted pixel grey values of the edge regions in the pixel grey value table; and S6, sending the display data to the screen for displaying according to the pixel grey values recorded in the pixel grey value table. The invention also provides a screen edge color adjusting device. According to the screen edge color adjusting method and device disclosed by the invention, color adjustment precision is improved, adjustment complexity is reduced, and time taken for the color adjustment is also reduced.
Description
Technical field
The present invention relates to a kind of screen edge color adjustment method and device, belong to the Large Screen Display Technology field.
Background technology
The lifting that Along with people's is transmitted demand to display message, the application of large screen display have spreaded all over every field such as public's demonstration, communications and transportation dispatch control, meteorological monitoring, the monitoring of electric power telecommunications, fire fighting monitoring commander, military commanding.
But giant-screen generally is screen edge Show Color and screen center's zone Show Color exists big color difference, in order to make the color of screen more even, so need adjust the screen edge Show Color; The existing color adjustment technology; Mainly be to operate through optical modulation earlier, and then carry out electron gain and regulate operation, and the gain-adjusted action need is provided with adjusting manually; Not only time and effort consuming, and manual type also can't guarantee the precision of regulating; In addition, also having a kind of technology is that whole screen pixels value is adjusted, thereby the color of whole screen is become evenly, but whole screen pixels value is adjusted, and operand is very big and program is complicated, and it is very slow to cause regulating the speed.
Summary of the invention
In order to address the above problem, the present invention provides a kind of screen edge color adjustment method and device, the screen edge color is adjusted automatically, and improved and regulated the speed and precision.
A kind of screen edge color adjustment method may further comprise the steps:
S1: the photographic images when obtaining the preset image of each gray level of screen display;
S2: the corresponding relation of primary colours position of setting up primary colours position and the actual screen of screen in the said photographic images;
S3: set up the corresponding fully grey scale pixel value form of said preset image, the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
S4: the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels is adjusted according to said photographic images;
S5: the grey scale pixel value to the fringe region in the said adjusted grey scale pixel value form carries out assignment;
S6: according to the grey scale pixel value that writes down in the grey scale pixel value form after the assignment processing video data is sent to screen and shows.
A kind of screen edge color adjusting gear comprises:
The photographic images acquisition module, the photographic images when being used to obtain the preset image of each gray level of screen display;
Corresponding relation building module is used for setting up the corresponding relation of primary colours position of primary colours position and the actual screen of said photographic images screen;
The grey scale pixel value form is set up module, is used to set up the corresponding fully grey scale pixel value form of said preset image, and the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
Grey scale pixel value form adjusting module is used for according to said photographic images the grey scale pixel value of all fringe regions of the grey scale pixel value form of all gray levels being adjusted;
Grey scale pixel value assignment module is used for the grey scale pixel value of the fringe region of said adjusted grey scale pixel value form is carried out assignment;
Display module is used for according to the grey scale pixel value that the grey scale pixel value form after the assignment processing writes down video data being sent to screen and shows.
Compared with prior art, the photographic images of the preset image of the fringe region of technology of the present invention through at first obtaining each gray level of screen is set up the grey scale pixel value form; And said photographic images analyzed; From said photographic images, search the gray-scale value photographic images identical with the desired display gray level, preset according to this photographic images again gray level is adjusted said grey scale pixel value form; Data according to the grey scale pixel value form show then, thereby realize the colour brightness adjustment.The whole process of technology of the present invention has all realized robotization, has avoided the manual low problem of degree of accuracy of adjusting in the prior art, reduces the adjustment complexity simultaneously.In addition; The grey scale pixel value form is only preserved the grey scale pixel value of image border with the zone; Reduce data quantity stored and improved the read or write speed in the adjustment process simultaneously, and adopted the mode of the mutual assignment of the close fringe region of grey scale pixel value form, also reduced the time of color adjustment.
Description of drawings
Fig. 1 is the process flow diagram of screen edge color adjustment method of the present invention;
Fig. 2 is the synoptic diagram that obtains the photographic images of preset image through style of shooting;
Fig. 3 is the synoptic diagram of three kinds of primary colours space partition Pareto diagram pictures;
Fig. 4 is the corresponding relation synoptic diagram of primary colours position of primary colours position and the actual screen of screen in the photographic images of setting up;
Fig. 5 is the process flow diagram of an embodiment of adjustment process among the step S4;
Fig. 6 is the structural representation of screen edge color adjusting gear of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment screen edge color adjustment method of the present invention is described in detail.
As shown in Figure 1, screen edge color adjustment method of the present invention comprises the steps:
S1: the photographic images when obtaining the preset image of each gray level of screen display;
S2: the corresponding relation of primary colours position of setting up primary colours position and the actual screen of screen in the said photographic images;
S3: set up the corresponding fully grey scale pixel value form of said preset image, the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
S4: the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels is adjusted according to said photographic images;
S5: the grey scale pixel value to the fringe region in the said adjusted grey scale pixel value form carries out assignment;
S6: according to the grey scale pixel value that writes down in the grey scale pixel value form after the assignment processing video data is sent to screen and shows.
For clear more screen edge color adjustment method of the present invention, do more detailed the elaboration below in conjunction with preferred embodiments.
For said S1: the process of the photographic images when obtaining the preset image of each gray level of screen display; Preferably; As shown in Figure 2, make the preset image of each gray level of screen display, through camera 101 photographed screen 102; Obtain the photographic images of the preset image of each gray level of screen, and said photographic images is preserved.
Particularly, the photographic images that is obtained is as shown in Figure 3, and said preset image is for comprising the image of red (R), green (G), blue (B) three kinds of primary colours space partitions arrangements in the screen edge zone; Be red, green, blue, red, green, blue ... So be spaced, each primary colours size at interval can be set according to this patent user's actual conditions, and is more little at interval; Degree of accuracy is high more; In the present embodiment, the gap size of getting between each primary colours is 30 pixels, and the width preferable range of fringe region is the 40-80 pixel; In the present embodiment, getting width is 50 pixels.
All in preset image, screen display has 256 gray levels, then need take 256 images for red, green, blue, three primary colours, the photographic images of the screen 0-255 gray level of representing respectively with 0.bmp-255.bmp to take.
For said S2: the corresponding relation of primary colours position of setting up primary colours position and the actual screen of screen in the said photographic images; Particularly; As shown in Figure 4; Fringe region G1 in the corresponding actual screen of the fringe region K1 of screen red pixel in the photographic images, the fringe region G2 in the photographic images in the corresponding actual screen of the fringe region K2 of screen green pixel, the fringe region G3 in the photographic images in the corresponding actual screen of the fringe region K3 of screen blue pixel; So analogize, set up the corresponding relation of primary colours position of primary colours position and the actual screen of screen in all photographic images.Wherein, said corresponding relation is the corresponding relation of unit with the primary colours zone, need not the corresponding relation specific to each pixel.
For said S3: set up the corresponding fully grey scale pixel value form of said preset image; The process of the grey scale pixel value of each fringe region in the said grey scale pixel value form for the mean value of its inner all grey scale pixel values is set; Particularly; Corresponding relation and said preset image according to said step S2; Set up the grey scale pixel value form in said preset edge of image zone, and respectively the pixel average gray value of each primary colours of each fringe region is stored in the relevant position of grey scale pixel value form.
Screen display has 256 gray levels, therefore, sets up 256 forms respectively, the separately pixel average gray value in zone of three kinds of primary colours of a gray level of each form stores in image.For example, the average gray value of three kinds of primary colours pixels of the fringe region K1 of red pixel is 232 in the 240.bmp image, and then the fringe region K1 grey scale pixel value of red pixel just is recorded as 232 in the 240.bmp image.
For said S4: the process according to said photographic images is adjusted the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels particularly, comprises as follows:
Choose the fringe region in the said grey scale pixel value form of each gray level respectively; From said photographic images, find out in this fringe region position and grey scale pixel value and the identical photographic images of the said gray level of choosing, the gray level with this photographic images writes in the corresponding fringe region then.
For example; When the grey scale pixel value of the fringe region K1 of the grey scale pixel value form that will adjust gray level 240; Then in the corresponding K1 position of the grey scale pixel value form of the photographic images of all 0-255 gray levels, search and be shown as 240 photographic images in the gray-value image; The gray level of supposing this image is 248, then this gray level 248 is write among the fringe region K1 of the grey scale pixel value form that will adjust gray level 240, and promptly the grey scale pixel value of this fringe region position K1 is 248; So analogize, until the grey scale pixel value adjustment of the fringe region of accomplishing all grey scale pixel value forms.
For the flow process of adjustment process among the step S4, as shown in Figure 5, comprise the steps:
S401: choosing gray level is the grey scale pixel value form of n,
;
S402: from the said grey scale pixel value form of choosing, choose a fringe region;
S403: from said photographic images, find out in this fringe region position and the grey scale pixel value photographic images identical with said gray level n, it is in the corresponding fringe region of the grey scale pixel value form of n that the gray level a of this photographic images is write said gray level;
S404: judge whether to exist the fringe region of not choosing, if, return step S402, if not, get into step S405.
S405: judge whether to exist the grey scale pixel value form of not choosing, if, return step S401, if not, finish adjustment.
Because screen edge is when showing by preset image; There is color difference in the color of each gray level and desired display, through obtaining the photographic images of each gray level, sets up its grey scale pixel value form; To each fringe region position; Analyze through photographic images again, obtain the gray level of the pairing photographic images of gray-scale value of desired display, gray level is write in the grey scale pixel value form; Set up the relation that shows expectation value and the required gray-scale displayed value of screen, thereby accomplished adjustment process.
For the assignment procedure among the said S5, particularly, carry out mutual assignment between the pixel region near the grey scale pixel value form after the process step S4 that accomplishes each gray level handles; Promptly respectively the pixel of pixel in the fringe region of red in the grey scale pixel value form, blue, green three kinds of primary colours and close fringe region is carried out mutual assignment.
For example; The grey scale pixel value form of gray level 240; After having accomplished the adjustment of step S4; The grey scale pixel value that the grey scale pixel value of the fringe region position K1 of red pixel is 248, suppose the fringe region K2 of close green pixel is 244, the grey scale pixel value of the fringe region position K1 of close blue pixel is 239; The fringe region position K1 that then can assignment gives red pixel with the grey scale pixel value 244 of the fringe region position K3 of the grey scale pixel value 244 of the fringe region position K2 of the contiguous green pixel of the fringe region position K1 of red pixel and contiguous blue pixel; As green pixel gray-scale value and the blue pixel gray-scale value of the fringe region position K1 of red pixel, promptly the rgb value of assignment back edge regional location K1 is respectively 248,244,239.
Through adopting near the mode of the mutual assignment of the pixel region above-mentioned grey scale pixel value form; Need not repeatedly to change the primary colours of subregion in the preset image; But also only get the pixel average gray value in each primary colours subregion in the fringe region; Assignment also is to give same gray-scale value in the whole same primary colours subregion, has significantly reduced the time of color adjustment.
For said S6: the grey scale pixel value that writes down in the grey scale pixel value form after handling according to assignment is sent to screen with video data and shows; Particularly; The grey scale pixel value form of preservation after step S5 assignment is handled is sent to screen according to the grey scale pixel value that writes down in the grey scale pixel value form after the assignment processing with video data and shows.
Below in conjunction with accompanying drawing and embodiment screen edge color adjusting gear of the present invention is described in detail.
As shown in Figure 6, the screen edge color adjusting gear based on screen edge color adjustment method of the present invention comprises:
The photographic images acquisition module, the photographic images when being used to obtain the preset image of each gray level of screen display;
Corresponding relation building module is used for setting up the corresponding relation of primary colours position of primary colours position and the actual screen of said photographic images screen;
The grey scale pixel value form is set up module, is used to set up the corresponding fully grey scale pixel value form of said preset image, and the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
Grey scale pixel value form adjusting module is used for according to said photographic images the grey scale pixel value of all fringe regions of the grey scale pixel value form of all gray levels being adjusted;
Grey scale pixel value assignment module is used for the grey scale pixel value of the fringe region of said adjusted grey scale pixel value form is carried out assignment;
Display module is used for according to the grey scale pixel value that the grey scale pixel value form after the assignment processing writes down video data being sent to screen and shows.
For said photographic images acquisition module, be further used for making the preset image of each gray level of screen display, utilize the camera photographed screen to obtain the photographic images of the preset image of each gray level of screen, and said photographic images is preserved.
Set up module for institute's grey scale pixel value form; Be further used for setting up corresponding relation and the said preset image that module is set up according to said grey scale pixel value form; Set up the grey scale pixel value form in said preset edge of image zone, and respectively the pixel average gray value of each primary colours of each fringe region is stored in the relevant position of grey scale pixel value form.
For said grey scale pixel value form adjusting module; Be further used for choosing respectively the fringe region in the said grey scale pixel value form of each gray level; From said photographic images, find out in this fringe region position and grey scale pixel value and the identical photographic images of the said gray level of choosing, the gray level with this photographic images writes in the corresponding fringe region then.
In sum, technology of the present invention realizes the colour brightness adjustment through taking fringe region with style of shooting and comprise the photographic images of the preset image that three kinds of primary colours space partitions of red, green, blue arrange and analyzing.Whole process has realized robotization, has avoided manual setting to influence the problem of precision, has also reduced the complexity of adjusting simultaneously.
Preset edge of image zone has comprised three kinds of primary colours of space partition arrangement red, green, blue, rather than shows the image of each primary colours respectively; And adopt the close fringe region of grey scale pixel value form to carry out the mode of mutual assignment, need not repeatedly to change the primary colours of presetting subregion in the image; Through choosing the pixel average gray value in each primary colours subregion in the fringe region, assignment also is to give same gray-scale value in the whole same primary colours subregion, has greatly reduced the time of color adjustment.
The grey scale pixel value form is only preserved the pixel value of photographic images fringe region, need not to preserve the grey scale pixel value of whole captured image, has reduced data quantity stored, has improved read or write speed simultaneously.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. a screen edge color adjustment method is characterized in that, may further comprise the steps:
S1: the photographic images when obtaining the preset image of each gray level of screen display;
S2: the corresponding relation of primary colours position of setting up primary colours position and the actual screen of screen in the said photographic images;
S3: set up the corresponding fully grey scale pixel value form of said preset image, the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
S4: the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels is adjusted according to said photographic images;
S5: the grey scale pixel value to the fringe region in the said adjusted grey scale pixel value form carries out assignment;
S6: according to the grey scale pixel value that writes down in the grey scale pixel value form after the assignment processing video data is sent to screen and shows.
2. screen edge color adjustment method according to claim 1 is characterized in that, said S1: the process of the photographic images when obtaining the preset image of each gray level of screen display comprises:
Make the preset image of each gray level of screen display, obtain the photographic images of the preset image of each gray level of screen, and said photographic images is preserved through the mode of taking;
Wherein, said preset image is for comprising the image that three kinds of primary colours space partitions of red, green, blue are arranged in the screen edge zone.
3. screen edge color adjustment method according to claim 2; It is characterized in that; Said S3: set up the corresponding fully grey scale pixel value form of said preset image, the grey scale pixel value that each fringe region in the said grey scale pixel value form is set is that the process of the mean value of its inner all grey scale pixel values comprises:
Corresponding relation and said preset image according to said step S2; Set up the grey scale pixel value form in said preset edge of image zone, and respectively the pixel average gray value of each primary colours of each fringe region is stored in the relevant position of grey scale pixel value form.
4. screen edge color adjustment method according to claim 3 is characterized in that, said S4: the process of the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels being adjusted according to said photographic images comprises:
Choose the fringe region in the said grey scale pixel value form of each gray level respectively; From said photographic images, find out in this fringe region position and grey scale pixel value and the identical photographic images of the said gray level of choosing, the gray level with this photographic images writes in the corresponding fringe region then.
5. screen edge color adjustment method according to claim 4 is characterized in that, the assignment procedure among the said S5 comprises:
Respectively the pixel of pixel in the fringe region of red in the grey scale pixel value form, blue, green three kinds of primary colours and close fringe region is carried out mutual assignment.
6. screen edge color adjustment method according to claim 3 is characterized in that, said S4: the process of the grey scale pixel value of all fringe regions in the grey scale pixel value form of all gray levels being adjusted according to said photographic images comprises:
S401: choosing gray level is the grey scale pixel value form of n;
S402: from the said grey scale pixel value form of choosing, choose a fringe region;
S403: from said photographic images, find out in this fringe region position and the grey scale pixel value photographic images identical with said gray level n, it is in the corresponding fringe region of the grey scale pixel value form of n that the gray level a of this photographic images is write said gray level;
S404: judge whether to exist the fringe region of not choosing, if, return step S402, if not, get into step S405;
S405: judge whether to exist the grey scale pixel value form of not choosing, if, return step S401, if not, finish adjustment.
7. screen edge color adjustment method according to claim 5 is characterized in that, the gap size between the primary colours of said fringe region is 30 pixels, and the scope of the pixel wide of fringe region is the 40-80 pixel.
8. a screen edge color adjusting gear is characterized in that, comprising:
The photographic images acquisition module, the photographic images when being used to obtain the preset image of each gray level of screen display;
Corresponding relation building module is used for setting up the corresponding relation of primary colours position of primary colours position and the actual screen of said photographic images screen;
The grey scale pixel value form is set up module, is used to set up the corresponding fully grey scale pixel value form of said preset image, and the mean value of the grey scale pixel value of each fringe region in the said grey scale pixel value form for its inner all grey scale pixel values is set; Wherein, said fringe region is the table area of dividing along said grey scale pixel value form edge;
Grey scale pixel value form adjusting module is used for according to said photographic images the grey scale pixel value of all fringe regions of the grey scale pixel value form of all gray levels being adjusted;
Grey scale pixel value assignment module is used for the grey scale pixel value of the fringe region of said adjusted grey scale pixel value form is carried out assignment;
Display module is used for according to the grey scale pixel value that the grey scale pixel value form after the assignment processing writes down video data being sent to screen and shows.
9. screen edge color adjusting gear according to claim 8; It is characterized in that; Said grey scale pixel value form is set up module; Be further used for setting up corresponding relation and the said preset image that module is set up, set up the grey scale pixel value form in said preset edge of image zone, and respectively the pixel average gray value of each primary colours of each fringe region is stored in the relevant position of grey scale pixel value form according to said grey scale pixel value form.
10. screen edge color adjusting gear according to claim 8; It is characterized in that; Said grey scale pixel value form adjusting module; Be further used for choosing respectively the fringe region in the said grey scale pixel value form of each gray level, from said photographic images, find out in this fringe region position and grey scale pixel value and the identical photographic images of the said gray level of choosing, the gray level with this photographic images writes in the corresponding fringe region then.
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| WO2020093653A1 (en) * | 2018-11-07 | 2020-05-14 | 浙江宇视科技有限公司 | Color adjustment method, color adjustment device, electronic device and computer-readable storage medium |
| US11962917B2 (en) | 2018-11-07 | 2024-04-16 | Zhejiang Uniview Technologies Co., Ltd. | Color adjustment method, color adjustment device, electronic device and computer-readable storage medium |
| CN109949377A (en) * | 2019-03-08 | 2019-06-28 | 北京旷视科技有限公司 | Image processing method, device and electronic equipment |
| CN110875024A (en) * | 2019-11-29 | 2020-03-10 | 上海天马有机发光显示技术有限公司 | Display brightness adjusting method and device |
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