CN108428435B - The verifying display methods of one sub-pixel rendering - Google Patents
The verifying display methods of one sub-pixel rendering Download PDFInfo
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- CN108428435B CN108428435B CN201810268980.1A CN201810268980A CN108428435B CN 108428435 B CN108428435 B CN 108428435B CN 201810268980 A CN201810268980 A CN 201810268980A CN 108428435 B CN108428435 B CN 108428435B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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Abstract
The invention discloses the verifying display methods of sub-pixel rendering, step includes: that 1 couple of pixel size P × Q is the rendering processing that original image carries out sub-pixel, obtains the RGB gray scale value matrix of sub-pixel；The RGB gray scale value matrix is carried out rearrangement according to putting in order for Delta type sub-pixel in the way of left and right borrow sub-pixel by 2, obtains the RGB recombination gray scale value matrix of pixel size P × 2Q；3 are reduced into the RGB recombination gray scale value matrix of the pixel size P × 2Q image of pixel size P × 2Q, and the image that the original image and reduction obtain is compared display to complete to verify.The present invention can use standard RGB screen to show sub-pixel rendering treated picture, so as to verify the feasibility of the sub-pixel Rendering algorithms for display panel arrangement well.
Description
Technical field
The present invention relates to image procossing and field of display technology, more specifically a kind of to test for standard RGB screen
Demonstrate,prove the display methods of sub-pixel Rendering.
Technical background
Display is very widely used, and display equipment can be seen on the electronic equipment of mankind's daily use.
Traditional liquid crystal display and organic light emitting diode display is made of two-dimensional pixel array.Wherein each pixel is equal
Comprising according to certain tactic sub-pixel.The color of sub-pixel includes red (R), green (G), blue (B) etc..Each pixel
The color of the pixel is shown after sub-pixel colors mixing, to show color image on the display device.
Display field of today, the arrangement of subpixels of display panel have occurred that change.By taking AMOLED screen as an example, display
The arrangement of subpixels sequence of panel is no longer traditional R, G, B sequence.Common sub-pixel arrangement have Pentile type and
Delta type etc..Some display screen manufacturers possess the display screen of proprietary arrangement of subpixels sequence.This kind of non-traditional RGB arrangement
Display screen, there is miscellaneous sub-pixel arrangements, this just needs to study the calculation of the conversion from RGB to other dot structures
Method.One new pixel arrangement must have a sub-pixel rendering method.
Sub-pixel Rendering is generally used for the driving IC of non-traditional arrangement of subpixels display screen.Before engineering project
Phase can not show the picture of new arrangement of subpixels using traditional standard RGB display device.The verifying of sub-pixel Rendering at
For the problem of engineering early period, but relevant solution is not found at present.
Summary of the invention
The present invention is to solve not showing screen display in standard RGB by sub-pixel rendering treated sub-pixel data
The problem of, the verifying display methods of sub-pixel rendering is provided, to which RGB display screen can be used to show that sub-pixel rendering is handled
Picture afterwards, so as to verify the feasibility of the sub-pixel Rendering algorithms for display panel arrangement well.
The present invention adopts the following technical scheme that in order to solve the technical problem
The characteristics of verifying display methods of sub-pixel rendering of the invention is to carry out as follows:
Step 1 carries out sub-pixel rendering processing to the original image that pixel size is P × Q, obtains the RGB ash of sub-pixel
Angle value matrix；
Step 2, by left and right borrow sub-pixel in the way of by the RGB gray scale value matrix according to Delta type sub-pixel
It puts in order and carries out rearrangement, obtain the RGB recombination gray scale value matrix of pixel size P × 2Q；
The Delta type sub-pixel puts in order are as follows: in M × N number of sub-pixel arrangement architecture, any i-th row jth
Arrange a sub-pixel, i+1 row jth+1 arranges a sub-pixel, the i-th+2 row jth arranges+1 column height of sub-pixel and the i-th+3 row jth
The color of pixel is identical, i=1,2 ..., M-3, j=1,2 ..., N-1；
Step 3, the figure that the RGB recombination gray scale value matrix of the pixel size P × 2Q is reduced into pixel size P × 2Q
Picture, and the image that the original image and reduction obtain is compared into display to complete to verify.
The left and right that the characteristics of verifying display methods of sub-pixel rendering of the present invention lies also in the step 2 borrows
The mode of sub-pixel are as follows:
Step 2.1, by the RGB gray scale value matrix in even number line any one pixel be configured to RGB recombination gray scale
The block of pixels being made of in corresponding even number line two pixels in value matrix enables R of first pixel in the block of pixels
0 or 255 fillings of the gray value of the sum of the grayscale values G sub-pixel of pixel, and the gray value of B sub-pixel remains unchanged；Enable the picture
The gray value of the sum of the grayscale values G sub-pixel of the R sub-pixel of second pixel point remains unchanged in plain block, and the ash of B sub-pixel
0 or 255 fillings of angle value；And in the even number line of the RGB recombination gray scale value matrix, enable previous in any two adjacent pixel blocks
The R sub-pixel of first pixel of the gray value and the latter block of pixels of the B sub-pixel of the second pixel point of a block of pixels
The gray value of sum of the grayscale values G sub-pixel be 0 or 255；
Step 2.2, by the RGB gray scale value matrix in odd-numbered line any one pixel be configured to RGB recombination gray scale
The block of pixels being made of in corresponding odd-numbered line two pixels in value matrix enables R of first pixel in the block of pixels
The gray value of the gray value of pixel, G sub-pixel and B sub-pixel uses 0 or 255 fillings, enables second pixel in the block of pixels
The gray value of the R sub-pixel of point, the gray value of the sum of the grayscale values B sub-pixel of G sub-pixel remain unchanged.
Compared with the prior art, beneficial effects of the present invention and advantage are:
1, in the present invention, Delta type arrangement of subpixels structure is generally the sub-pixel arrangement of novel display panel.And
The present invention passes through the pixel number evidence for rearranging and extending tradition RGB, by the sub-pixel gray value after sub-pixel renders
Data realize putting in order for sub-pixel on novel display panel in a manner of the sub-pixel for borrowing adjacent pixel.Use biography
The sub-pixel of system RGB display screen simulates the arrangement of subpixels of new display panel, to realize in engineering project early period by using mark
Quasi- RGB display screen shows the image data of new panel, can achieve the approximate display effect for imitating new display panel.
2, sub-pixel Rendering is generally used for the driving IC of non-traditional arrangement of subpixels display screen.In driving chip
It design phase, can not examine whether a sub- pixel rendering technical solution is suitable for the Novel panel, and use traditional standard
RGB display device and the picture that can not show new arrangement of subpixels.And the present invention provides the verifying of sub-pixel rendering is aobvious
Show method, RGB display screen can be used to show sub-pixel rendering treated picture, so as to be verified well for display surface
The feasibility of the sub-pixel Rendering algorithms of plate arrangement.
3, the gray value data 255 being inserted into the present invention can effectively improve the reduction degree of picture.It is calculated in combination with rendering
The picture newly arranged after data and recovery after method, sub-pixel rendering compares verifying, can be good at examining being directed to and be somebody's turn to do
The feasibility of the sub-pixel Rendering algorithms of display panel arrangement.
Detailed description of the invention
Fig. 1 is the arrangement of subpixels structural schematic diagram of standard RGB display screen.
Fig. 2 is the display panel schematic diagram using Delta type arrangement of subpixels structure.
Fig. 3 is flow for displaying schematic diagram provided in an embodiment of the present invention.
Fig. 4 a is the odd-numbered line primary expansion schematic diagram that the present invention realizes.
Fig. 4 b is the even number line primary expansion schematic diagram that the present invention realizes.
Fig. 4 c is the primary expansion schematic diagram that the present invention realizes.
Fig. 5 a is original image used in one embodiment of the invention.
Fig. 5 b is one embodiment of the invention experimental result obtained.
Specific embodiment
Refering to fig. 1, Fig. 1 is the arrangement of subpixels structural schematic diagram of standard RGB display screen.In standard RGB arrangement of subpixels
In structure, red sub-pixel (R), green sub-pixels (G), blue subpixels (B) are arranged successively in order, and the sub-pixel of every row
It puts in order all the same.
Referring to Fig.2, Fig. 2 is the display panel schematic diagram using Delta type arrangement of subpixels structure.In Delta type picture
In plain arrangement architecture, red sub-pixel (R), green sub-pixels (G), blue subpixels (B) are arranged successively in particular order.
Delta type sub-pixel puts in order are as follows: in M × N number of sub-pixel arrangement architecture, any i-th row jth column sub-pixel,
I+1 row jth+1 arranges a sub-pixel, the i-th+2 row jth arranges a sub-pixel and the i-th+3 row jth+1 arranges the color phase of a sub-pixel
Together, i=1,2 ..., M-3, j=1,2 ..., N-1；Identical, the arrangement of subpixels of even number line of arrangement of subpixels sequence of odd-numbered line
It is identical.
It is the flow diagram of the verifying display methods of sub-pixel rendering provided in this embodiment refering to Fig. 3, Fig. 3.
The display methods mainly includes the following steps:
Step 1 starts and inputs a primitive frame image, carries out sub-pixel rendering to the original image that pixel size is P × Q
Processing, obtains the RGB gray scale value matrix of sub-pixel.It will be after the processing of sub-pixel Rendering using MATLAB or other tools
Sub-pixel gray value store at matrix or documentation form form；
Step 2, on standard RGB sub-pixel structure, by left and right borrow sub-pixel in the way of RGB gray scale value matrix pressed
Rearrangement is carried out according to putting in order for Delta type sub-pixel, obtains the RGB recombination gray scale value matrix of pixel size P × 2Q, and
The sub-pixel gray value not borrowed is filled using gray value data 0 or 255；
It is specific to borrow mode are as follows: by any one pixel is configured to RGB recombination in even number line in RGB gray scale value matrix
The block of pixels being made of in corresponding even number line two pixels in gray scale value matrix enables R of first pixel in block of pixels
0 or 255 fillings of the gray value of the sum of the grayscale values G sub-pixel of pixel, and the gray value of B sub-pixel remains unchanged；Enable block of pixels
The gray value of the sum of the grayscale values G sub-pixel of the R sub-pixel of middle second pixel point remains unchanged, and the gray value of B sub-pixel
With 0 or 255 fillings；And in the even number line of RGB recombination gray scale value matrix, previous block of pixels in any two adjacent pixel blocks is enabled
Second pixel point B sub-pixel gray value and the latter block of pixels first pixel R sub-pixel gray value
Gray value with G sub-pixel is 0 or 255；
By any one pixel is configured in RGB recombination gray scale value matrix accordingly in odd-numbered line in RGB gray scale value matrix
The block of pixels being made of in odd-numbered line two pixels enables the gray value of the R sub-pixel of first pixel in block of pixels, G
The gray value of pixel and B sub-pixel uses 0 or 255 fillings, enables gray value, the G of the R sub-pixel of second pixel point in block of pixels
The gray value of the sum of the grayscale values B sub-pixel of sub-pixel remains unchanged.
Delta type arrangement of subpixels structure is the non-standard RGB for needing to carry out image RGB data sub-pixel rendering processing
The structure of arrangement of subpixels.Holding sequence is identical while rearranging number of sub-pixels.Construct the sub-pixel of new display panel
The mode to put in order is the color sub-pixels by borrowing adjacent pixel.The sub-pixel for the original pixel not being borrowed
Data are filled using sub-pixel gray value 0 or 255.During extension when needing continuous filling number of sub-pixels to be greater than 3,
Using 255 replacement data 0 of data, a white pixel is added with this, to improve the picture luminance after restoring.
Step 3, the image that pixel size P × 2Q RGB recombination gray scale value matrix is reduced into pixel size P × 2Q, and will
The image that original image and reduction obtain compares display to complete to verify.
As shown in fig. 4 a, Fig. 4 a is the Extended Principle Diagram of the odd-numbered line of Delta type arrangement of subpixels structure.Pixel 1 in figure
With the pixel that pixel 3 is before not extending, each pixel includes three sub-pixels.Block of pixels 2 and block of pixels 4 are after extending in figure
Block of pixels, each block of pixels include two complete standard rgb pixels.The arrangement mode of block of pixels 2 and block of pixels 4 is will be
The arrangement mode presented on standard RGB display screen.When pixel 1 is extended to block of pixels 2, the R of first pixel in block of pixels 2,
G, B sub-pixel data is 0, and R, G, B sub-pixel data of second pixel are identical as R, G, B sub-pixel data in pixel 1.
When pixel 3 is extended to block of pixels 4, R, G, B sub-pixel data of first pixel in block of pixels 4 are 255, second pixel
R, G, B sub-pixel data it is identical as R, G, B sub-pixel data in pixel 3.
As shown in Figure 4 b, Fig. 4 b is the Extended Principle Diagram of the even number line of Delta type arrangement of subpixels structure.Pixel 1 in figure
With the pixel that pixel 3 is before not extending, each pixel includes three sub-pixels.Block of pixels 2 and block of pixels 4 are after extending in figure
Block of pixels, each block of pixels include two complete standard rgb pixels.The arrangement mode of block of pixels 2 and block of pixels 4 is will be
The arrangement mode presented on standard RGB display screen.When pixel 1 is extended to block of pixels 2, R, G of first pixel in block of pixels 2
Sub-pixel data is that 255, B sub-pixel data is identical as the B sub-pixel data in pixel 1.Second pixel in block of pixels 2
R sub-pixel, the data of G sub-pixel it is identical as the R sub-pixel in pixel 1, the data of G sub-pixel, the data of B sub-pixel are 0.
The data of R sub-pixel, G sub-pixel in block of pixels 4 in first pixel are the B picture in the data and pixel 3 of 0, B sub-pixel
Element value is identical.The value of R sub-pixel, G sub-pixel in block of pixels 4 in second pixel and R sub-pixel, G sub-pixel in pixel 3
Value it is identical, the value of B sub-pixel is 255.
As illustrated in fig. 4 c, Fig. 4 c is that the schematic diagram after extending completely is carried out to Delta type arrangement of subpixels structure.Picture in figure
Element 1 is the rgb pixel of a standard.It puts in order it can be seen that the sub-pixel arrangement after extension maintains original, well
The arrangement mode of required display panel is imitated.Continuous three sub-pixel datas are 255 one white pixel of composition when extension,
Continuous three sub-pixel datas are 0 i.e. one black picture element of composition.Expand using data 0 and 255 and will not influence original image
Color imbalance, and can effectively improve picture reduction after brightness.
It is after Fig. 5 b is the processing of sub-pixel Rendering algorithms, and to use this for original image (standard RGB picture) refering to Fig. 5 a
The picture that inventive method is shown.It can be seen from figure 5b that the present invention is to realize one by using two continuous pixels
The arrangement of subpixels of new pixel, thus picture had after being reduced it is a degree of dimmed.
In the embodiment of the present invention, the arrangement rule of odd-numbered line and even number line sub-pixel is Delta type picture shown in Fig. 2
Plain arrangement architecture.
Claims (1)
1. the verifying display methods of sub-pixel rendering, it is characterized in that carrying out as follows:
Step 1 carries out sub-pixel rendering processing to the original image that pixel size is P × Q, obtains the RGB gray value of sub-pixel
Matrix；
Step 2, by left and right borrow sub-pixel in the way of by the RGB gray scale value matrix according to the arrangement of Delta type sub-pixel
Sequence carries out rearrangement, obtains the RGB recombination gray scale value matrix of pixel size P × 2Q；
The Delta type sub-pixel puts in order are as follows: in M × N number of sub-pixel arrangement architecture, any i-th row jth column
Sub-pixel, i+1 row jth+1 arrange a sub-pixel, the i-th+2 row jth arranges a sub-pixel and the i-th+3 row jth+1 arranges a sub-pixel
Color it is identical, i=1,2 ..., M-3, j=1,2 ..., N-1；
Step 2.1, by the RGB gray scale value matrix in even number line any one pixel be configured to RGB recombination gray value square
The block of pixels being made of in corresponding even number line two pixels in battle array, enables the R sub-pixel of first pixel in the block of pixels
Sum of the grayscale values G sub-pixel 0 or 255 fillings of gray value, and the gray value of B sub-pixel remains unchanged；Enable the block of pixels
The gray value of the sum of the grayscale values G sub-pixel of the R sub-pixel of middle second pixel point remains unchanged, and the gray value of B sub-pixel
With 0 or 255 fillings；And in the even number line of the RGB recombination gray scale value matrix, previous picture in any two adjacent pixel blocks is enabled
The ash of the R sub-pixel of first pixel of the gray value and the latter block of pixels of the B sub-pixel of the second pixel point of plain block
The gray value of angle value and G sub-pixel is 0 or 255；
Step 2.2, by the RGB gray scale value matrix in odd-numbered line any one pixel be configured to RGB recombination gray value square
The block of pixels being made of in corresponding odd-numbered line two pixels in battle array, enables the R sub-pixel of first pixel in the block of pixels
Gray value, G sub-pixel and B sub-pixel gray value use 0 or 255 fillings, enable the R of second pixel point in the block of pixels
The gray value of sub-pixel, the gray value of the sum of the grayscale values B sub-pixel of G sub-pixel remain unchanged；
Step 3, the image that the RGB recombination gray scale value matrix of the pixel size P × 2Q is reduced into pixel size P × 2Q, and
The image that the original image and reduction obtain is compared into display to complete to verify.
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| CN111312169A (en) * | 2019-01-23 | 2020-06-19 | 深圳清华大学研究院 | Sub-pixel rendering system and method capable of reducing power consumption of display panel |
| CN110379370B (en) * | 2019-07-19 | 2020-10-23 | 合肥工业大学 | RGB-Delta type display panel sub-pixel rendering method based on threshold comparison |
| CN110599962B (en) * | 2019-09-23 | 2020-10-23 | 深圳清华大学研究院 | Rendering method of Delta type sub-pixel display panel with different color sequences |
| CN110853568B (en) * | 2019-11-29 | 2022-11-01 | 昆山国显光电有限公司 | Image processing method and apparatus, and storage medium |
| CN114203089B (en) * | 2021-12-15 | 2023-03-24 | 南京国兆光电科技有限公司 | Sub-pixel rendering method for RGB-Delta arrangement |
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