CN101047865A - Image process device and method for selecting image color graded - Google Patents
Image process device and method for selecting image color graded Download PDFInfo
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- CN101047865A CN101047865A CN 200610071432 CN200610071432A CN101047865A CN 101047865 A CN101047865 A CN 101047865A CN 200610071432 CN200610071432 CN 200610071432 CN 200610071432 A CN200610071432 A CN 200610071432A CN 101047865 A CN101047865 A CN 101047865A
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Abstract
This invention selects a corresponding image successive color program based on the rule of the gray scale of sub-pixels of each color of an input image to display the input image on a display with low bit depth.
Description
Technical field
The present invention relates to a kind of image process method, particularly a kind ofly select image color graded method.
Background technology
The color depth of image (color depth) is the employed figure place of each pixel that is decided by to be used for expressing in this image, that is the bit depth of pixel (bit depth).Generally speaking, the color depth of image is high more, and its image quality also can be careful more.
Generally speaking, the treatable bit depth of display (for example display floater of computer screen or PDA or the like) institute is limited.When display treatable bit depth be lower than the color depth of the image that desire shows; for example; when utilizing 6 display to show 8 image; regular meeting uses a kind of technology for image color graded (image dithering) of title, and the image that color depth is higher is presented on the lower display of bit depth.
Yet, on application, display manufacture finish after, can select a kind of image color graded method.Behind product turnout, the image color graded method of display just can't be adjusted again.Meaning, all images that display is received can only can not allow all images that best visual effect is all arranged but have a kind of image color graded method at present to handle it with a kind of image color graded method.
Summary of the invention
The present invention discloses a kind of image color graded method of selecting, the GTG value that comprises the sub-pixel of same color that a plurality of pixel comprises adjacent in each row with an image block compares, the GTG value that reaches as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents a predetermined rule, then adjusts one first count value.
Description of drawings
Fig. 1 is the functional block diagram of image processing apparatus of the present invention.
Fig. 2 is a schematic diagram of cutting apart input picture.
Fig. 3 is the schematic diagram of an image block among Fig. 2.
Fig. 4 is the schematic diagram of judging unit among Fig. 1.
Fig. 5 selects image color graded flow chart for the present invention.
Fig. 6 to Fig. 9 is respectively the schematic diagram of each image color graded program among Fig. 1.
Figure 10 to Figure 12 is respectively the schematic diagram that cooperates different GTG remainders with the image color graded program of Fig. 6.
The reference numeral explanation
10 image processing apparatus, 12 judging units
14 pass look processing unit 16 judge modules
18 comparison module a1 image blocks
1,2,3,4 counters
22,24,26,28 image color graded programs
Embodiment
The rule that the GTG of the sub-pixel of each color presents haply in the present invention elder generation calculating input image is used and is selected suitable image color graded program, is shown on the lower display of bit depth with the image that color depth is higher.
See also Fig. 1, Fig. 1 is the functional block diagram of image processing apparatus 10 of the present invention.The judging unit 12 of image processing apparatus 10 receives an input picture, and calculates the rule that the GTG of the sub-pixel of each color presents haply in a plurality of pixel datas in this input picture, to select to be fit to the image color graded program of this input picture.Image processing apparatus 10 pass the controlling signal of look processing unit 14 according to judging unit 12, in image color graded program 22-28, select corresponding image color graded program.
See also Fig. 2 and Fig. 3; Fig. 2 is a schematic diagram of cutting apart input picture, and Fig. 3 is the schematic diagram of image block a1 among Fig. 2.If input picture is divided into a plurality of image blocks, as shown in Figure 2, comprise a plurality of pixels (pixel) in each image block, as shown in Figure 3, image block a1 comprises a plurality of pixels, and each pixel is by three sub-pixels (sub-pixel): R, G, B are constituted, (R00 for example, G00 is to represent a pixel B00), and other analogizes it.The judging unit 12 of image processing apparatus 10 can be respectively in the horizontal direction and vertical direction judge GTG situation between the neighbor.
Illustrate at first how the present invention judges the GTG situation between the neighbor.Dotted portion with the row of first on the horizontal direction among Fig. 3 is an example, judging unit 12 is three left and right sides adjacent pixels relatively: (R00, G00, B00), (R01, G01 is B01) with (R02, G02, B02), if the sub-pixel of each color all meets horizontal GTG increasing or decreasing phenomenon in these three adjacent pixels, the GTG situation between these three neighbors is considered as horizontal GTG.
Horizontal GTG increases progressively phenomenon must meet following three judgement formulas:
R02＞R01＞R00；
G02＞G01＞G00；
B02＞B01＞B00。
Horizontal GTG decreasing phenomenon must meet following three judgement formulas:
R02＜R01＜R00；
G02＜G01＜G00；
B02＜B01＜B00。
If the GTG value of the sub-pixel of all same colors is all identical in these three adjacent pixels, the GTG situation between these three neighbors is considered as single horizontal GTG, and the judgement formula is as follows:
Single horizontal GTG must meet following three judgement formulas:
R02＝R01＝R00；
G02＝G01＝G00；
B02＝B01＝B00。
In like manner, dotted portion with the row of first on the vertical direction among Fig. 3 is an example, judging unit 12 is three left and right sides adjacent pixels relatively: (R00, G00, B00), (R10, G10, B10) with (R20, G20, B20), if the sub-pixel of each color all meets vertical GTG increasing or decreasing phenomenon in these three adjacent pixels, the GTG situation between these three neighbors is considered as vertical GTG.
Vertical GTG increases progressively phenomenon and must meet following three judgement formulas:
R20＞R10＞R00；
G20＞G10＞G00；
B20＞B10＞B00。
Vertical GTG decreasing phenomenon must meet following three judgement formulas:
R20＜R10＜R00；
G20＜G10＜G00；
B20＜B10＜B00。
If the GTG value of the sub-pixel of all same colors is all identical in these three adjacent pixels, the GTG situation between these three neighbors is considered as single vertical GTG, and the judgement formula is as follows:
Single vertical GTG must meet following three judgement formulas:
R20＝R10＝R00；
G20＝G10＝G00；
B20＝B10＝B00。
The present invention does not limit with three neighbors and judges the GTG situation, can four neighbors be a unit yet, and perhaps other number is a unit, visual application and designing.
See also Fig. 4; Fig. 4 is the schematic diagram of judging unit 12 among Fig. 1.Judging unit 12 comprises a judge module 16, a comparison module 18 and counter (counter) 1-4.The judge module 16 of judging unit 12 is judged the situation that presents vertical GTG, horizontal GTG, single horizontal GTG and single vertical GTG among the image block a 1 between neighbor earlier in above-mentioned mode, counts the number of different GTGs again by four calculator 1-4.Suppose that counter 1 is in order to the number that calculates vertical GTG and correspond to image color graded program 22; Counter 2 is in order to the number of calculated level GTG and correspond to image color graded program 24; Counter 3 is in order to the number that calculates single horizontal GTG and correspond to image color graded program 26; And counter 4 is in order to the number that calculates single vertical GTG and correspond to image color graded program 28.After having calculated the number of various GTG situations among the image block a1, the comparison module 18 of judging unit 12 then compares the numerical value among four counter 1-4.If the number of vertical GTG is a maximum, then judging unit 12 sends a controlling signal, passs look processing unit 14 with control and selects corresponding image color graded program 22, and image block a1 carries out image is passed look program 22.
Certainly, judging unit 12 control is passed look processing unit 14 and is selected the judgment mode of the image color graded program that is fit to not to be defined as to find out maximum, also can find out minimum value, perhaps utilize the judgement formula of four magnitude relationship between numerical value to decide, so the kind of image color graded program is also different because of different judgment modes with number in the image processing apparatus 10.
In addition, if image processing apparatus 10 has the design of frame buffer (frame buffer), can be earlier with row operation again after the temporary transient storage of all images data of a static frames, therefore judging unit 12 can omit calculator 4, single vertical GTG and single horizontal GTG are counted with calculator 3, as the situation of single GTG.
In addition, 10 pairs one still image carries out image of image processing apparatus are passed the mode of look program, the still image that can be one whole is to handle it with a kind of mode, and perhaps an image block is selected a kind of look program of passing, and perhaps a plurality of adjacent image pieces are selected a kind of look program of passing.
See also Fig. 5; Fig. 5 selects image color graded flow chart for image processing apparatus 10 of the present invention, and step is as follows:
Step 100: the judge module 16 of judging unit 12 is judged the situation that presents vertical GTG, horizontal GTG, single horizontal GTG and single vertical GTG among the image block a1 between neighbor, and adjusts corresponding counter 1-4;
Step 102: the comparison module 18 of judging unit 12 then compares the numerical value among four counter 1-4, passs look processing unit 14 with control and selects corresponding image color graded program 22-28;
Step 104: pass look processing unit 14 and select image color graded program, and the image carries out image is passed look;
Step 106: finish.
See also Fig. 6 to Fig. 9, be respectively the schematic diagram of image color graded program 22-28 among Fig. 1, wherein each grid is represented a pixel, occurs the order of view data on the digital 1-4 representative time.Suppose to utilize 6 display to show 8 image,, just, in 8 the image minimum two, present view data according to the GTG remainder.For instance, the GTG remainder is 1 o'clock, and the order of video data is 1,2,3,4 on the time; The GTG remainder is 2 o'clock, and the order of video data is (1,2), (3,4) on the time; The GTG remainder is 3 o'clock, and the order of video data is (2,3,4), (1,3,4), (1,2,4), (1,2,3) on the time.See also Figure 10 to Figure 12, be respectively the schematic diagram that cooperates GTG remainder 1-3 with the image color graded program 22 of Fig. 6.
Image color graded program used in the present invention is not limited to the image color graded program 22-28 of Fig. 6 to Fig. 9, and other image color graded program is also adopted by the present invention.
The present invention judges the rule that the GTG of the sub-pixel of each color in the image presents haply earlier, and the image color graded program of selecting again to be fit to is handled image, so that each image can present best visual effect.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (14)
1. select image color graded method for one kind, comprise:
The GTG value of the sub-pixel of adjacent same color that a plurality of pixel comprises compares in each row with an image block;
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents a predetermined rule, then adjusts one first count value; And
Carry out image color graded with the image color graded program that corresponds to this first count value.
2. the method for claim 1, other comprises:
The GTG value of the sub-pixel of adjacent same color that a plurality of pixel comprises compares in each row with this image block; And
If the GTG value with the sub-pixel of each color in a plurality of pixels adjacent in the delegation all presents this predetermined rule, then adjust one second count value.
3. method as claimed in claim 2, other comprises and carries out image color graded with the image color graded program that corresponds to this second count value.
4. method as claimed in claim 2, other comprises relatively this two count value.
5. the method for claim 1, wherein:
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents this predetermined rule, then adjust this first count value and be if in the same row in adjacent a plurality of pixels the GTG value of the sub-pixel of each color all present the increasing or decreasing phenomenon, then adjust this first count value.
6. the method for claim 1, wherein:
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents this predetermined rule, it is all identical as if the GTG value of the sub-pixel of all same colors in a plurality of pixels adjacent in the same row then adjusting this first count value, then adjusts this first count value.
7. method as claimed in claim 6, other comprises:
The GTG value of the sub-pixel of adjacent same color that a plurality of pixel comprises compares in each row with this image block; And
If all identical, then adjust this first count value with the GTG value of the sub-pixel of all same colors in a plurality of pixels adjacent in the delegation.
8. select image color graded method for one kind, comprise:
The GTG value of the sub-pixel of adjacent same color that a plurality of pixel comprises compares in each row with an image block;
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents one first predetermined rule, then adjusts one first count value;
The GTG value of the sub-pixel of adjacent same color that a plurality of pixel comprises compares in each row with this image block; And
If the GTG value with the sub-pixel of each color in a plurality of pixels adjacent in the delegation all presents one second predetermined rule, then adjust one second count value.
9. method as claimed in claim 8, wherein:
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents this first predetermined rule, then adjust this first count value and be if in the same row in adjacent a plurality of pixels the GTG value of the sub-pixel of each color all present the increasing or decreasing phenomenon, then adjust this first count value; And
If the GTG value with the sub-pixel of each color in a plurality of pixels adjacent in the delegation all presents this second predetermined rule, if then adjusting this second count value is all identical with the GTG value of the sub-pixel of all same colors in a plurality of pixels adjacent in the delegation, then adjusts this second count value.
10. method as claimed in claim 8, wherein:
GTG value as if the sub-pixel of each color in a plurality of pixels adjacent in the same row all presents this first predetermined rule, it is all identical as if the GTG value of the sub-pixel of all same colors in a plurality of pixels adjacent in the same row then adjusting this first count value, then adjusts this first count value; And
If the GTG value with the sub-pixel of each color in a plurality of pixels adjacent in the delegation all presents this second predetermined rule, then adjusting this second count value is all to present the increasing or decreasing phenomenon as if the GTG value with the sub-pixel of each color in a plurality of pixels adjacent in the delegation, then adjusts this second count value.
11. method as claimed in claim 8, other comprises and carries out image color graded with the image color graded program that corresponds to this first count value.
12. method as claimed in claim 8, other comprises and carries out image color graded with the image color graded program that corresponds to this second count value.
13. method as claimed in claim 8, other comprises relatively this two count value.
14. the image processing apparatus that can select image color graded program comprises:
One judging unit in order to receiving an input picture, and calculates the gray-scale distribution situation of a plurality of pixel datas in this input picture; And
One passs the look processing unit, in order to the gray-scale distribution situation according to this input picture that this judging unit is judged, selects an image color graded program, handles this input picture carries out image is passed look.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610071432A CN100594735C (en) | 2006-03-28 | 2006-03-28 | Image process device and method for selecting image color graded |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610071432A CN100594735C (en) | 2006-03-28 | 2006-03-28 | Image process device and method for selecting image color graded |
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| Publication Number | Publication Date |
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| CN101047865A true CN101047865A (en) | 2007-10-03 |
| CN100594735C CN100594735C (en) | 2010-03-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969557A (en) * | 2009-07-27 | 2011-02-09 | 索尼公司 | Image recording device, image recording method and program |
| CN101567089B (en) * | 2008-04-24 | 2011-12-28 | 成越科技股份有限公司 | Image color transferring device and method thereof |
| CN101667380B (en) * | 2008-09-04 | 2012-08-08 | 旭曜科技股份有限公司 | Method for sharing same dithering table and display panel driving method using same |
| CN101828399B (en) * | 2007-10-15 | 2013-06-26 | 高通股份有限公司 | Scalable video coding techniques for scalable bitdepths |
| US9311890B2 (en) | 2013-09-03 | 2016-04-12 | Hewlett-Packard Development Company, L.P. | Assigning display colors to achieve apparent desired colors |
| CN107646131A (en) * | 2014-11-04 | 2018-01-30 | 英特尔公司 | Shake for the view data to be shown |
| CN110675802A (en) * | 2019-11-14 | 2020-01-10 | 威创集团股份有限公司 | Brightness compensation method and device |
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2006
- 2006-03-28 CN CN200610071432A patent/CN100594735C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828399B (en) * | 2007-10-15 | 2013-06-26 | 高通股份有限公司 | Scalable video coding techniques for scalable bitdepths |
| CN101567089B (en) * | 2008-04-24 | 2011-12-28 | 成越科技股份有限公司 | Image color transferring device and method thereof |
| CN101667380B (en) * | 2008-09-04 | 2012-08-08 | 旭曜科技股份有限公司 | Method for sharing same dithering table and display panel driving method using same |
| CN101969557A (en) * | 2009-07-27 | 2011-02-09 | 索尼公司 | Image recording device, image recording method and program |
| CN101969557B (en) * | 2009-07-27 | 2013-03-06 | 索尼公司 | Image recording device, and image recording method |
| US9311890B2 (en) | 2013-09-03 | 2016-04-12 | Hewlett-Packard Development Company, L.P. | Assigning display colors to achieve apparent desired colors |
| CN107646131A (en) * | 2014-11-04 | 2018-01-30 | 英特尔公司 | Shake for the view data to be shown |
| CN110675802A (en) * | 2019-11-14 | 2020-01-10 | 威创集团股份有限公司 | Brightness compensation method and device |
| CN110675802B (en) * | 2019-11-14 | 2021-03-09 | 威创集团股份有限公司 | Brightness compensation method and device |
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|---|---|
| CN100594735C (en) | 2010-03-17 |
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