CN101640753B - Image processing method and image processing device - Google Patents
Image processing method and image processing device Download PDFInfo
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- CN101640753B CN101640753B CN2009101708134A CN200910170813A CN101640753B CN 101640753 B CN101640753 B CN 101640753B CN 2009101708134 A CN2009101708134 A CN 2009101708134A CN 200910170813 A CN200910170813 A CN 200910170813A CN 101640753 B CN101640753 B CN 101640753B
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Abstract
The invention discloses an image processing method and an image processing device which are used for solving the problems of larger distortion and poor display effect of 16bit pictures corresponding to real chromatic pictures obtained in the prior art. The method comprises the following steps: carrying out the following processing steps on each pixel in the real chromatic pictures one by one: obtaining a compensation pixel value, wherein the compensation pixel value is a pixel value compensated to the pixel by part of pixel values discarded at least one of other pixels except for the pixel is subjected to truncation processing according to a scheduled compensation rule; taking the sum of the obtained compensation pixel value and the pixel value of the pixel as the pixel value of the pixel after being modified; and carrying out truncation processing on the modified pixel value and obtaining the pixel value corresponding to the pixel after truncation.
Description
Technical field
The present invention relates to technical field of image processing, relate in particular to a kind of image processing method and a kind of image processing apparatus.
Background technology
The display effect of display screen is subjected to terminal processing capacity on the portable terminal of use embedded technology manufacturing, the restriction of factors such as screen size, can't show 24 (bit) true color pictures, therefore common pixel value with each pixel in the 24bit picture directly blocks, be treated to the picture of 16bit or 18bit, then 16bit after showing truncation on the portable terminal or the picture of 18bit.For example, with the 24bit pixel value truncation in the true color picture is that the process of 16bit pixel value is: give up for low 3 with low 2,8 bluenesss (B) component of low 3,8 greens (G) component of 8 redness (R) component in the 24bit pixel value, each pixel value in the 16bit picture after the processing comprises 5 R components, 6 G components and 5 B components.
Adopt above-mentioned picture treatment technology to lose partial color information in original true color picture, being equivalent to 8 kinds of comparatively approaching color map in original 24bit true color picture is with a kind of color, therefore can occur comparatively serious watermark effect distortion and color distortion aspect display effect.The figure place of the color component of giving up during truncation is many more, and the display effect after the processing is poor more.
Therefore, when on portable terminal, showing the picture by existing truncation technology acquisition distortion bigger, be difficult to the display effect that reaches satisfied.
Summary of the invention
The embodiment of the invention provides a kind of image processing method, in order to the 16bit that solves the true color picture correspondence that obtains in the prior art or the distortion of 18bit picture is big, the not good problem of display effect.
Accordingly, the embodiment of the invention also provides a kind of image processing apparatus.
The technical scheme that the embodiment of the invention provides is as follows:
A kind of image processing method comprises:
One by one each pixel in the true color picture is carried out following treatment step:
Obtain the compensation pixel value, described compensation pixel value is according to predetermined compensation rule, the pixel compensation value that will abandon in the time of will carrying out truncation at least 1 other pixel except that this pixel is given the pixel value of this pixel, described compensation rule is according to predetermined compensating proportion, it is benchmark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, second pixel of predetermined offset;
With the pixel value sum of the compensation pixel value that gets access to and this pixel pixel value as this pixel after revising;
Revised pixel value is carried out truncation, this pixel corresponding pixel value after obtaining to block.
A kind of image processing apparatus comprises:
The offset acquiring unit, be used for one by one each pixel of true color picture being carried out: obtain the compensation pixel value, described compensation pixel value is according to predetermined compensation rule, the pixel compensation value that will abandon in the time of will carrying out truncation at least one other pixel except that this pixel is given the pixel value of this pixel, described compensation rule is according to predetermined compensating proportion, it is benchmark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, second pixel of predetermined offset;
Determining unit is used for the pixel value of the pixel value sum of compensation pixel value that the offset acquiring unit is obtained and this pixel as this pixel after revising;
The truncation unit is used for the revised pixel value that determining unit is determined is carried out truncation, this pixel corresponding pixel value after obtaining to block.
The image processing scheme that the embodiment of the invention proposes is behind the picture that obtains correspondence after the truncation of true color picture, at each pixel, according to the predetermined backoff ratio, the partial pixel value of this pixel that abandons during with truncation compensates the pixel to this pixel periphery precalculated position, can effectively remedy the picture distortion that truncation causes by such scheme, improve the display effect of picture on the portable terminal.
Description of drawings
Fig. 1 is the main realization principle flow chart of the embodiment of the invention;
Fig. 2 is the schematic diagram of each pixel relative position relation in the embodiment of the invention;
Fig. 3 is the schematic diagram of a kind of predetermined backoff rule in the present embodiment;
Fig. 4 is the schematic diagram of another kind of predetermined backoff rule in the present embodiment;
The structural representation of the image processing apparatus that Fig. 5 provides for the embodiment of the invention.
Embodiment
Owing to abandon the part pixel value in the truncation process that 16bit, 18bit etc. are lower than the 24bit picture and will cause comparatively serious image fault phenomenon existing 24bit true color picture is treated to.The scheme that the embodiment of the invention proposes at each pixel in the picture, compensates the partial pixel value of this pixel of abandoning to 2 adjacent pixels of this pixel at least, has proposed feasible scheme for obtaining the better picture of display effect.
Be explained in detail to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
As shown in Figure 1, the main realization principle process of the embodiment of the invention is as follows:
One by one each pixel in the true color picture is carried out following treatment step:
Usually, the picture that shows on the portable terminal is 16bit picture or 18bit picture, below will be according to foregoing invention principle of the present invention, how to determine that according to 24bit true color picture 16bit and 18bit picture are example, introduce two embodiment in detail and come the main realization principle of the inventive method is explained in detail and illustrates.
Embodiment one
Because picture is made up of a large amount of pixels, present embodiment only to be example to the processing procedure of two pixels wherein, is introduced the image processing method of embodiment of the invention proposition.
Please refer to accompanying drawing 2, in present embodiment, the schematic diagram of each pixel relative position relation is represented each pixel with square, the width of each pixel with highly all be identical, represent the width or the height dimension of single pixel in the present embodiment with Δ d.Wherein pixel X1 is a pixel in the picture, and pixel X2 is for being benchmark with pixel X1, and horizontal offset is the pixel of Δ d; X3 is for being benchmark with pixel X1, and horizontal offset is the pixel of 2 Δ d; X4 is for being benchmark with pixel X1, is the pixel of Δ d in the opposite direction side-play amount of vertical direction; X5 is for being benchmark with pixel X1, and bias in the horizontal direction is that the opposite direction side-play amount of Δ d and vertical direction is the pixel of Δ d; X6 is for being benchmark with pixel X1, and bias in the horizontal direction is that the opposite direction side-play amount of 2 Δ d and vertical direction is the pixel of Δ d.
The pixel value of pixel X1 is (79 in 24bit true color picture, 15,7), the content of 3 bytes (24bit) memory space of storing X 1 pixel value is 010011110000111100000111, X1 is being carried out truncation, after promptly removing low 3 red components, low 2 green components, low 3 blue components, the pixel value of X1 is (72,12,0), the content of the 16bit memory space of the pixel value after storing X 1 truncation is 01001[000] 000011[00] 00000[000], the partial pixel value that is dropped in the truncation process is (7,3,7).
Please refer to accompanying drawing 3, be the schematic diagram of a kind of predetermined backoff rule in the present embodiment, it is benchmark that pixel X is given in 7/16 compensation of the partial pixel value that will abandon in the time of will carrying out truncation to pixel X, and horizontal offset is the pixel of Δ d; It is benchmark that pixel X is given in 3/16 compensation of the partial pixel value that abandons, and side-play amount is the pixel of Δ d on the opposite direction of vertical direction; It is benchmark that pixel X is given in 5/16 compensation of the partial pixel value that abandons, and horizontal offset is that side-play amount is the pixel of Δ d on the opposite direction of Δ d and vertical direction; It is benchmark that pixel X is given in 1/16 compensation of the partial pixel value that abandons, and horizontal offset is that side-play amount is the pixel of Δ d on the opposite direction of 2 Δ d and vertical direction.
Above-mentioned compensation rule is based on the image processing theory, determines after a large amount of picture samples are tested.
In the present embodiment, before X1 was carried out truncation, the pixel value of each pixel of X1～X6 was as shown in table 1.
Before table 1 couple X1 carries out truncation, the 24bit pixel value of each pixel
| ?R | G | B | |
| X1 | 79 | 15 | 7 |
| X2 | 77 | 7 | 3 |
| X3 | 77 | 7 | 3 |
| X4 | 77 | 7 | 3 |
| X5 | 77 | 7 | 3 |
| X6 | 77 | 7 | 3 |
During with the X1 truncation, after the ratio according to 7/16 is given X2 with the compensation of the partial pixel value (7,3,7) that abandons, the pixel value of X2 be (77+7*7/16,7+3*7/16,3+7*7/16); After ratio according to 3/16 is given X4 with the compensation of the partial pixel value (7,3,7) that abandons, the pixel value of X4 be (77+7*3/16,7+3*3/16,3+7*3/16); After ratio according to 5/16 is given X5 with the compensation of the partial pixel value (7,3,7) that abandons, the pixel value of X5 be (77+7*5/16,7+3*5/16,3+7*5/16); After ratio according to 1/16 is given X6 with the compensation of the partial pixel value (7,3,7) that abandons, the pixel value of X6 be (77+7*1/16,7+3*1/16,3+7*1/16).
After the partial pixel value that will abandon in the time will carrying out truncation to X1 according to above-mentioned compensation rule compensated to other pixels, the pixel value of each pixel was as shown in table 2 among X1～X6.
After table 2 couple X1 carries out truncation, X1 is abandoned part compensate to after other pixels the pixel value of each pixel
| R | G | B | |
| X1 | 72 | 12 | 0 |
| X2 | 80 | 8 | 6 |
| X3 | 77 | 7 | 3 |
| X4 | 78 | 8 | 4 |
| X5 | 79 | 8 | 5 |
| X6 | 77 | 7 | 3 |
For X2, before carrying out truncation, obtain other pixels of carrying out truncation before this earlier and give the compensation pixel value of self according to the compensation of predetermined backoff rule, for example X1 being carried out the truncation post-compensation, to give the compensation pixel value of self be (7*7/16,3*7/16,7*7/16), revised pixel value (80 will be obtained after compensation pixel value and the 24bit pixel value of self (77,7, the 3) addition, 8,6), more revised pixel value is carried out truncation, the pixel value of X2 is (80 after the truncation like this, 8,0); And do not compensate according to prior art, the 24bit pixel value (77,7,3) of X2 is directly carried out truncation after, the pixel value of X2 is (72,4,0).In the present embodiment, only coming from X1 with the compensation pixel value of pixel X2 is that example is introduced, and in fact, the compensation pixel value of X2 may come from the partial pixel value that abandons when a plurality of pixels are carried out truncation.
As seen, after adopting the above-mentioned earlier scheme that compensation is blocked again, the 16bit pixel value of the X2 that obtains is (80-77 with the difference of blocking preceding 24bit pixel value, 8-7, be (3 0-3), 1,-3), and adopt existing scheme of directly blocking, the 16bit pixel value of the X2 of acquisition is (72-77 with the difference of blocking preceding 24bit pixel value, 4-7,0-3) be (5 ,-3 ,-3), so compared with prior art, 16bit picture and the distortion between the true color 24bit picture that the scheme that adopts present embodiment to provide gets access to are less.
According to being starting point from the true color picture upper left corner, the order of handling line by line from left to right, each pixel in the true color picture carried out above-mentioned processing after, can obtain the 16bit picture that is suitable on portable terminal, showing of 24bit true color picture correspondence.Certainly, also can adopt other predetermined processing sequences to handle each pixel in the true color picture successively one by one.
In the present embodiment, adopt the display effect of the 16bit picture of above-mentioned processing method acquisition obviously to be better than adopting existing display effect of directly carrying out the 16bit picture of truncation acquisition.
Accompanying drawing 4 is the schematic diagram of the another kind of predetermined backoff rule of embodiment of the invention proposition, based on the compensation rule shown in the accompanying drawing 4, adopt with the similar scheme of above-mentioned image processing method the true color picture is handled, also can obtain display effect 16bit picture preferably.
Embodiment two
Present embodiment has been introduced based on the compensation rule shown in the accompanying drawing 3, the 24bit pixel value in the true color picture in the table 1 is treated to the detailed process of 18bit pixel value.
Pixel X1 in the accompanying drawing 2 is being carried out truncation, after removing low 2 red components, low 2 green components, low 2 blue components, the pixel value of X1 is (76,12,4), the content of the 18bit memory space of the pixel value after storing X 1 truncation is 010011[00] 000011[00] 000001[00], the partial pixel value that is dropped in the truncation process is (3,3,3).
Based on compensation rule as shown in Figure 3, during to the X1 truncation, after the ratio according to 7/16 is given X2 with the compensation of the partial pixel value (3,3,3) that abandons, the pixel value of X2 be (77+3*7/16,7+3*7/16,3+3*7/16); After ratio according to 3/16 is given X4 with the compensation of the partial pixel value (3,3,3) that abandons, the pixel value of X4 be (77+3*3/16,7+3*3/16,3+3*3/16); After ratio according to 5/16 is given X5 with the compensation of the partial pixel value (3,3,3) that abandons, the pixel value of X5 be (77+3*5/16,7+3*5/16,3+3*5/16); After ratio according to 1/16 is given X6 with the compensation of the partial pixel value (3,3,3) that abandons, the pixel value of X6 be (77+3*1/16,7+3*1/16,3+3*1/16).
After the partial pixel value that will abandon in the time will carrying out truncation to X1 according to above-mentioned compensation rule compensated to other pixels, the pixel value of each pixel was as shown in table 3 among X1～X6.
After table 3 couple X1 carries out truncation, X1 is abandoned part compensate to after other pixels the pixel value of each pixel
| R | G | B | |
| X1 | 76 | 12 | 4 |
| X2 | 78 | 8 | 4 |
| X3 | 77 | 7 | 3 |
| X4 | 78 | 8 | 4 |
| X5 | 78 | 8 | 4 |
| X6 | 77 | 7 | 3 |
For X2, before carrying out truncation, obtain other pixels of carrying out truncation before this earlier and give the compensation pixel value of self according to the compensation of predetermined backoff rule, for example X1 being carried out the truncation post-compensation, to give the compensation pixel value of self be (3*7/16,3*7/16,3*7/16), revised pixel value (78 will be obtained after compensation pixel value and the 24bit pixel value of self (77,7, the 3) addition, 8,4), more revised pixel value is carried out truncation, the pixel value of X2 is (76 after the truncation like this, 8,4); And do not compensate according to prior art, the 24bit pixel value (77,7,3) of X2 is directly carried out truncation after, the pixel value of X2 is (76,4,0).
As seen, after adopting the above-mentioned earlier scheme that compensation is blocked again, the 18bit pixel value of the X2 that obtains is (76-77 with the difference of blocking preceding 24bit pixel value, 8-7, be (1 4-3), 1,1), and adopt existing scheme of directly blocking, the 18bit pixel value of the X2 of acquisition is (76-77 with the difference of blocking preceding 24bit pixel value, 4-7,0-3) be (1 ,-3 ,-3), so compared with prior art, 18bit picture and the distortion between the true color 24bit picture that the scheme that adopts present embodiment to provide gets access to are less.
According to being starting point from the true color picture upper left corner, the order of handling line by line after each pixel execution processing in the true color picture, can obtain the 18bit picture that is suitable for showing of 24bit true color picture correspondence on portable terminal from left to right.Certainly, also can adopt other predetermined processing sequences to handle each pixel in the true color picture successively one by one.
In the present embodiment, adopt the display effect of the 18bit picture of above-mentioned processing method acquisition obviously to be better than adopting existing display effect of directly carrying out the 18bit picture of truncation acquisition.
The embodiment of the invention is being converted to 24bit true color picture when being suitable for 16bit that portable terminal shows or 18bit picture, behind the picture that obtains correspondence after the truncation of true color picture, at each pixel, according to the predetermined backoff ratio, the partial pixel value of this pixel that abandons during with truncation compensates the pixel to this pixel periphery precalculated position, can effectively reduce the picture distortion that truncation causes by said method, improve the display effect of picture on the portable terminal.
Correspondingly, the embodiment of the invention also provides a kind of image processing apparatus, and as shown in Figure 5, this device comprises offset acquiring unit 801, determining unit 802 and truncation unit 803, and is specific as follows:
Offset acquiring unit 801, be used for one by one each pixel of true color picture being carried out: obtain the compensation pixel value, described compensation pixel value is that the partial pixel value that will abandon in the time of will carrying out truncation to other pixels except that this pixel compensates the pixel value to this pixel according to predetermined compensation rule;
Determining unit 802 is used for the pixel value of the pixel value sum of compensation pixel value that offset acquiring unit 801 is obtained and this pixel as this pixel after revising;
Preferably, for the ease of offset acquiring unit 801, determining unit 802 and truncation unit 803 are follow-up other pixels except that this pixel are carried out above-mentioned treatment step, above-mentioned image processing apparatus can also comprise:
Memory cell is used to store the partial pixel value of this pixel that abandons when truncation unit 803 carries out truncation.
Preferably, above-mentioned image processing apparatus should be arranged in the equipment that personal computer etc. possesses higher data disposal ability and data storage capacities.
Preferably, above-mentioned image processing apparatus can also be based on multiple predetermined backoff rule, same true color picture is handled, selected to compare picture after the processing of distortion minimum then as the picture of lower-order digits such as corresponding 16bit picture of this true color picture or 18bit picture with this true color picture.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. an image processing method is characterized in that, comprising:
One by one each pixel in the true color picture is carried out following treatment step:
Obtain the compensation pixel value, described compensation pixel value is according to predetermined compensation rule, the pixel compensation value that will abandon in the time of will carrying out truncation at least 1 other pixel except that this pixel is given the pixel value of this pixel, described compensation rule is according to predetermined compensating proportion, it is benchmark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, second pixel of predetermined offset;
With the pixel value sum of the compensation pixel value that gets access to and this pixel pixel value as this pixel after revising;
Revised pixel value is carried out truncation, this pixel corresponding pixel value after obtaining to block.
2. the method for claim 1 is characterized in that, according to being starting point from the true color picture upper left corner, the order of handling is line by line carried out described treatment step to each pixel in the described true color picture one by one from left to right.
3. the method for claim 1 is characterized in that, the pixel value that abandons during described truncation comprises low 3 red color component value, low 2 green component values and low 3 blue component values.
4. the method for claim 1 is characterized in that, the pixel value that abandons during described truncation comprises low 2 red color component value, low 2 green component values and low 2 blue component values.
5. the method for claim 1 is characterized in that, according to the predetermined backoff ratio, it is benchmark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, and second pixel of predetermined offset specifically comprises:
It is benchmark that first pixel is given in 7/16 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is second pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 3/16 compensation of the pixel value that first pixel is abandoned, and the opposite direction side-play amount of vertical direction is the 3rd pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 5/16 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 1 Pixel Dimensions and vertical direction is the 4th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 1/16 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 2 Pixel Dimensions and vertical direction is the 5th pixel of 1 Pixel Dimensions.
6. the method for claim 1, it is characterized in that according to the predetermined backoff ratio, it is datum mark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, second pixel of predetermined migration position specifically comprises:
It is benchmark that first pixel is given in 8/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is second pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 4/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is the 3rd pixel of 2 Pixel Dimensions;
It is benchmark that first pixel is given in 2/42 compensation of the pixel value that first pixel is abandoned, and the opposite direction side-play amount of vertical direction is the 4th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 4/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 1 Pixel Dimensions and vertical direction is the 5th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 8/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 2 Pixel Dimensions and vertical direction is the 6th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 4/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 3 Pixel Dimensions and vertical direction is the 7th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 2/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 4 Pixel Dimensions and vertical direction is the 8th pixel of 1 Pixel Dimensions;
It is benchmark that first pixel is given in 1/42 compensation of the pixel value that first pixel is abandoned, and the opposite direction side-play amount of vertical direction is the 9th pixel of 2 Pixel Dimensions;
It is benchmark that first pixel is given in 2/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 1 Pixel Dimensions and vertical direction is the tenth pixel of 2 Pixel Dimensions;
It is benchmark that first pixel is given in 4/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 2 Pixel Dimensions and vertical direction is the 11 pixel of 2 Pixel Dimensions;
It is benchmark that first pixel is given in 2/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 3 Pixel Dimensions and vertical direction is the 12 pixel of 2 Pixel Dimensions;
It is benchmark that first pixel is given in 1/42 compensation of the pixel value that first pixel is abandoned, and the horizontal direction side-play amount is that the opposite direction side-play amount of 4 Pixel Dimensions and vertical direction is the 13 pixel of 2 Pixel Dimensions.
7. an image processing apparatus is characterized in that, comprising:
The offset acquiring unit, be used for one by one each pixel of true color picture being carried out: obtain the compensation pixel value, described compensation pixel value is according to predetermined compensation rule, the pixel compensation value that will abandon in the time of will carrying out truncation at least one other pixel except that this pixel is given the pixel value of this pixel, described compensation rule is according to predetermined compensating proportion, it is benchmark with the first pixel position that the pixel compensation value that will abandon in the time of will carrying out truncation to first pixel is given at least 1, second pixel of predetermined offset;
Determining unit is used for the pixel value of the pixel value sum of compensation pixel value that the offset acquiring unit is obtained and this pixel as this pixel after revising;
The truncation unit is used for the revised pixel value that determining unit is determined is carried out truncation, this pixel corresponding pixel value after obtaining to block.
8. device as claimed in claim 7 is characterized in that, also comprises:
Memory cell is used to store the pixel value of this pixel that abandons when the truncation unit carries out truncation.
9. device as claimed in claim 7 is characterized in that, described image processing apparatus is according to being starting point from the true color picture upper left corner, and the order of handling is line by line carried out each pixel in the described true color picture one by one and handled from left to right.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0775983A2 (en) * | 1995-11-21 | 1997-05-28 | Nintendo Co., Ltd. | Restoration filter for truncated pixels |
| CN2838168Y (en) * | 2005-10-19 | 2006-11-15 | 上海广电（集团）有限公司中央研究院 | Truncation error compensation device for image display |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0775983A2 (en) * | 1995-11-21 | 1997-05-28 | Nintendo Co., Ltd. | Restoration filter for truncated pixels |
| CN2838168Y (en) * | 2005-10-19 | 2006-11-15 | 上海广电（集团）有限公司中央研究院 | Truncation error compensation device for image display |
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