CN109859668A - A kind of image compensation method and its device of circle display panel - Google Patents
A kind of image compensation method and its device of circle display panel Download PDFInfo
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Abstract
The present invention provides the image compensation method and its device of a kind of round display panel.Round display panel image compensation method includes: pixel image input step, setting upper limit threshold and lower threshold step, pixel distance calculating step, calculates pixel compensation weight step, calculates compensated pixel gray level value step and the compensated pixel gray level value step of output.Image compensation device can realize the image compensation method of above-mentioned round display panel.The present invention can compensate for the pixel value of round display panel adjacent edges pixel, thus the crenellated phenomena that the pixel for eliminating or improving round display panel edge is shown by calculating pixel compensation weight and compensated pixel gray level value.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of image compensation methods and its dress of round display panel
It sets.
Background technique
With the development of technology and the improvement of people ' s living standards, intelligence wearing product becomes more popular.For
The factors such as beauty in appearance, many intellectual products are designed using rounding, such as smartwatch, intelligent glasses, and recently
" Liu Haiping " etc. of mobile phone prevalence, used display area are accordingly designed as round or portion arc.It is existing aobvious
Display screen is designed as rectangle mostly, and basic display unit pixel also uses rectangular design, non-rectangle when being manufactured using prior art
When display screen, such as round screen, the pixel of display screen marginal position and the edge of display screen cannot be completed to coincide, although shape is whole
Circle is shown as, but part is scrutinized and will appear crenellated phenomena.
As shown in Figure 1, for using the round display panel edge partial enlargement diagram of rectangular pixels, crenellated phenomena is bright
It is aobvious.Current existing solution, which is all based on pixel design, to be improved, and display is made for example, by using the pixel of hexagon
Screen, but the cabling of this hexagonal pixels is extremely complex, when using the production of this hexagonal pixels, yields is low, produces
It is at high cost.
Summary of the invention
In place of the above shortcoming and defect of the existing technology, the primary purpose of the present invention is that providing a kind of circle
The image compensation method and its device of display panel can by calculating pixel compensation weight and compensated pixel gray level value
The pixel value of round display panel adjacent edges pixel is compensated, so that the pixel eliminated or improve round display panel edge is shown
Crenellated phenomena.
To achieve the above object, a kind of image compensation method of round display panel, packet are provided in one embodiment of the invention
Include step:
Pixel image input step provides the pixel image of a round display panel, defines the round display panel figure
The pixel of the center of picture is centre point pixel, defines outermost edges for displaying images in the round display panel
Luminous pixel is marginal point pixel；
Upper limit threshold and lower threshold step are set, and setting upper limit threshold is R1It is R with lower threshold2, wherein R1>R2；It is fixed
The justice centre point pixel is located at the 1st row the 1st column, and the marginal point pixel is located at Nth row Nth column, the upper limit threshold R1For
The marginal point pixel to the centre point pixel distance；The lower threshold R2The circle is biased to for the marginal point pixel
The N-n row N-n column pixel of heart point pixel side to the centre point pixel distance, wherein the N > n, n >=1；
Pixel distance calculates step, calculates a selected pixel and the centre point pixel in the round display panel
Distance d；
Pixel compensation weight step is calculated, calculates and saves the upper limit threshold R1With lower threshold R2Picture is selected in range
The pixel compensation weight ra of element, its calculation formula is:
Wherein R1For the threshold value that is above limited, R2It is selected pixel and centre point picture for lower threshold, d
The distance of element, R1>d>R2；
Compensated pixel gray level value step is calculated, the original of pixel within the scope of each limit threshold value and lower threshold is calculated
Beginning grayscale value and the product of its pixel compensation weight are the corresponding benefit of pixel within the scope of each limit threshold value and lower threshold
Pixel gray level value after repaying, its calculation formula is imnew=ra × im, wherein im is pixel original gray-scale value, imnewFor pixel benefit
Grayscale value after repaying；
S6 exports compensated pixel gray level value step, corresponding to export picture within the scope of each limit threshold value and lower threshold
The compensated pixel gray level value of element is simultaneously shown.
Further, wherein the pixel distance calculates selected pixel and the center of circle of the round display panel in step
The method of distance d of point pixel includes:
If the coordinate of the centre point pixel is (x0, y0), the coordinate of the selected pixel is (x, y), then the selected picture
The calculation formula of element and centre point pixel distance d are as follows:
Further, wherein the calculating for calculating the selected pixel compensation weight ra in pixel compensation weight step
Formula further includes d >=R1And d≤R2When value, its calculation formula is:
Wherein R1For the threshold value that is above limited, R2It is selected pixel at a distance from centre point pixel for lower threshold, d.
Further, wherein the pixel includes R, G, B sub-pixel.
Further, wherein the pixel is arranged in array.
It is provided in further embodiment of this invention a kind of for implementing the compensation device of the image compensation method including defeated
Enter unit, operation memory module and output unit；Wherein on the achievable pixel image input step of the input unit and setting
Threshold value and lower threshold step are limited, pixel image and the setting upper limit threshold for inputting round display panel to be processed are R1
It is R with lower threshold2, and generate the first output signal and be sent to the operation memory module；The operation memory module can be complete
Pixel distance calculates step, calculates pixel compensation weight step and calculate compensated pixel gray level value step, for receiving
First output signal calculates the selected pixel at a distance from centre point pixel according to the content of first output signal
D, the selected pixel compensation weight ra and compensated pixel gray level value imnew, and result is generated into the second output signal hair
Give the output unit；The achievable compensated pixel gray level value step of output of the output unit, for receiving described the
Two output signals, the corresponding pixel gray level value exported within the scope of each limit threshold value and lower threshold after pixel compensation are simultaneously shown
Show.
Further, wherein the input unit is one of keyboard, mouse, touch screen or camera or combinations thereof.
Further, wherein the operation memory module includes arithmetic element and storage unit to implement operation respectively and deposit
Function is stored up, the arithmetic element is CPU, and the storage unit includes one of memory, hard disk or USB flash disk or combinations thereof.
Further, wherein the output unit is display.
Further, wherein wherein the input unit and output unit are combined using touch screen.
The technical effects of the invention are that a kind of round display panel image compensation method is provided, by calculating pixel
Weight and compensated pixel gray level value are compensated, can compensate for the pixel value of round display panel adjacent edges pixel, to eliminate
Or improve the crenellated phenomena that the pixel at round display panel edge is shown.Also, image compensation of the invention calculates simply, is convenient for
Chip is realized.
Detailed description of the invention
Fig. 1 is the round display panel edge partial enlargement diagram that the prior art uses rectangular pixels；
Fig. 2 is a kind of flow chart of the image compensation method of round display panel of an embodiment of the present invention；
Fig. 3 is a kind of marginal point pixel of round display panel of an embodiment of the present invention to the structure of centre point pixel
Schematic diagram；
Fig. 4 is a kind of round display panel edge partial enlargement diagram of an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of image compensation device of an embodiment of the present invention.
Component mark is as follows in figure:
1 selected pixel, 2 centre point pixels, 3 marginal point pixels, 4 image compensation devices,
5 input units, 6 operation memory modules, 7 output units.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, knot
Structure or characteristic can be incorporated in any suitable manner in one or more embodiments.In the following description, it provides perhaps
More details fully understand embodiment of the present disclosure to provide.It will be appreciated, however, by one skilled in the art that can
It is omitted with technical solution of the disclosure one or more in the specific detail, or others side can be used
Method, constituent element, device, step etc..In other cases, be not shown in detail or describe known solution to avoid a presumptuous guest usurps the role of the host and
So that all aspects of this disclosure thicken.The similar unit of structure is with being given the same reference numerals in the figure.
It please refers to shown in Fig. 2, Fig. 3, a kind of image compensation method of round display panel is provided in one embodiment of the invention,
Comprising steps of
S1 pixel image input step provides the pixel image of a round display panel, defines the round display panel
The pixel of the center of image is centre point pixel 2, defines outermost for displaying images in the round display panel
The pixel of edge-lit is marginal point pixel 3；
Upper limit threshold and lower threshold step is arranged in S2, and setting upper limit threshold is R1It is R with lower threshold2, wherein R1>R2；
It defines the centre point pixel 2 and is located at the 1st row the 1st column, the marginal point pixel 3 is located at Nth row Nth column, the upper limit threshold
R1For the marginal point pixel 3 to the distance of the centre point pixel 2；The lower threshold R2For the marginal point pixel 3 deviation
The N-n row N-n column pixel of 2 side of centre point pixel to the centre point pixel 2 distance, wherein the N > n, n
≥1；
S3 pixel distance calculates step, calculates a selected pixel 1 and the centre point picture in the round display panel
The distance d of element 2；
Wherein, the selected pixel 1 of the round display panel and the method for 2 distance d of centre point pixel include: set described in
The coordinate of centre point pixel 2 is (x0, y0), the coordinate of any selected pixel 1 is (x, y), then the selected pixel 1 and circle
The calculation formula of the distance d of heart point pixel 2 is
S4 calculates pixel compensation weight step, calculates and saves the upper limit threshold R1With lower threshold R2It is selected in range
The pixel compensation weight ra of pixel 1, its calculation formula isWherein R1For the threshold value that is above limited, R2For lower limit
Threshold value, d are selected pixel 1 at a distance from centre point pixel 2, R1>d>R2；
Wherein, for convenience adjust display radius size (i.e. the size of d) or make rounded indication chart as edge more
Smoothly reduce R1And R2Value, while avoiding the R of setting1The pixel of areas outside shows that the selected pixel 1 compensates weight ra
Calculation formula further include d >=R1And d≤R2When value, its calculation formula is:
Wherein R1For the threshold value that is above limited, R2It is selected pixel at a distance from centre point pixel for lower threshold, d.
S5 calculates compensated pixel gray level value step, calculates and selectes picture within the scope of each limit threshold value and lower threshold
The original gray-scale value of element 1 and the product of its pixel compensation weight are each limit threshold value R1With lower threshold R2Choosing in range
Determine the corresponding compensated pixel gray level value of pixel 1, its calculation formula is imnew=ra × im, wherein im is pixel original gray-scale
Value, imnewFor the grayscale value after pixel compensation；
S6 exports compensated pixel gray level value step, corresponding to export each limit threshold value R1With lower threshold R2Range
The compensated pixel gray level value of interior selected pixel 1 simultaneously shows image according to compensated pixel gray level value.
It please refers to shown in Fig. 4, is display effect schematic diagram of the invention.
Wherein, the selected pixel 1 includes R, G, B sub-pixel, i.e. red sub-pixel, green sub-pixels, blue subpixels.
The selected pixel 1 is arranged in array.
It please refers to shown in Fig. 5, is provided in further embodiment of this invention a kind of for implementing the image compensation method
Compensation device 4, including input unit 5, operation memory module 6 and output unit 7；The wherein achievable S1 picture of the input unit 5
Plain image input step and S2 setting upper limit threshold and lower threshold step, for inputting the picture of round display panel to be processed
Sketch map picture and setting upper limit threshold are R1It is R with lower threshold2, and generate the first output signal and be sent to the operation storage mould
Block 6；The achievable S3 pixel distance of the operation memory module 6 calculates step, S4 calculates pixel compensation weight step and S5 is calculated
Compensated pixel gray level value step, for receiving first output signal, according to the content meter of first output signal
It calculates the selected pixel 1 and compensates weight ra and compensated pixel ash with 2 distance d of centre point pixel, the selected pixel 1
Rank value imnew, and result is generated into the second output signal and is sent to the output unit 7；The achievable S6 of the output unit 7 is defeated
Compensated pixel gray level value step out, it is corresponding to export each limit threshold value R for receiving second output signal1With
Lower threshold R2The compensated pixel gray level value of pixel 1 is selected in range and image is shown according to compensated pixel gray level value.
It is worth noting that, defining the centre point pixel 2 is located at the 1st row the 1st column, the marginal point pixel 3 is located at N
Row Nth column, the upper limit threshold R1For the marginal point pixel 3 to the distance of the centre point pixel 2；The lower threshold R2
The N-n row N-n column pixel of 2 side of centre point pixel is biased to the centre point pixel 2 for the marginal point pixel 3
Distance, wherein the N > n, n >=1.The setting upper limit threshold is R1It is R with lower threshold2Mode can be manually,
The operation memory module 6 is transferred to be configured after unified standard being formed by test.Choosing the centre point pixel 2
When, selection as far as possible chooses the marginal point pixel 3 and is located at round display panel positioned at the center position of round display panel
Edge, but the upper limit threshold R can also be carried out according to display demand1Range adjustment, i.e., round display panel ragged edge
Not as the marginal point pixel 3, can reach prevents round display panel outermost edge part from having the case where not showing for edge point,
Circular image can be preferably shown as.
Wherein, the input unit 5 is one of keyboard, mouse, touch screen or camera or combinations thereof.
Wherein, the operation memory module 6 includes arithmetic element and storage unit to implement operation and store function respectively,
The arithmetic element is CPU, and the storage unit includes one of memory, hard disk or USB flash disk or combinations thereof.The arithmetic element
It can be realized and calculate a selected pixel 1 in the round display panel and the 2 distance d of centre point pixel, calculating and protect
Deposit the upper limit threshold R1With lower threshold R2The pixel compensation weight ra of pixel 1 is selected in range and calculates each limit
Threshold value R1With lower threshold R2The original gray-scale value of pixel 1 is selected in range and the product of its pixel compensation weight is each institute
State limit threshold value R1With lower threshold R2The corresponding compensated pixel gray level value im of pixel 1 is selected in rangenew。
Wherein, the output unit 7 is display.
Wherein, the input unit and output unit are combined using touch screen.
The technical effects of the invention are that a kind of round display panel image compensation method is provided, by calculating pixel
Weight and compensated pixel gray level value are compensated, can compensate for the pixel value of round display panel adjacent edges pixel, to eliminate
Or improve the crenellated phenomena that the pixel at round display panel edge is shown.Also, image compensation of the invention calculates simply, is convenient for
Chip is realized.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of image compensation method of circle display panel, which is characterized in that comprising steps of
Pixel image input step provides the pixel image of a round display panel, defines the round display panel image
The pixel of center is centre point pixel, and it is luminous to define outermost edges for displaying images in the round display panel
Pixel be marginal point pixel；
Upper limit threshold and lower threshold step are set, and setting upper limit threshold is R1It is R with lower threshold2, wherein R1>R2；Definition institute
It states centre point pixel and is located at the 1st row the 1st column, the marginal point pixel is located at Nth row Nth column, the upper limit threshold R1It is described
Marginal point pixel to the centre point pixel distance；The lower threshold R2The centre point is biased to for the marginal point pixel
The N-n row N-n column pixel of pixel side to the centre point pixel distance, wherein the N > n, n >=1；
Pixel distance calculates step, calculates the selected pixel in the round display panel at a distance from the centre point pixel
d；
Pixel compensation weight step is calculated, calculates and saves the upper limit threshold R1With lower threshold R2Pixel is selected in range
Pixel compensation weight ra, its calculation formula is:
Wherein R1For upper limit threshold, R2For lower threshold, d be selected pixel and centre point pixel away from
From R1>d>R2；
Compensated pixel gray level value step is calculated, the original ash of pixel within the scope of each limit threshold value and lower threshold is calculated
Rank value and the product of its pixel compensation weight are within the scope of each limit threshold value and lower threshold after the corresponding compensation of pixel
Pixel gray level value, its calculation formula is imnew=ra × im, wherein im is pixel original gray-scale value, imnewAfter pixel compensation
Grayscale value；
Compensated pixel gray level value step is exported, it is corresponding to export pixel benefit within the scope of each upper limit threshold and lower threshold
Pixel gray level value after repaying simultaneously shows image according to compensated pixel gray level value.
2. the image compensation method of circle display panel as described in claim 1, which is characterized in that the pixel distance calculates
The selected pixel of the round display panel and the method for centre point pixel distance d in step include:
If the coordinate of the centre point pixel is (x0, y0), the coordinate of the selected pixel is (x, y), then the selected pixel with
The calculation formula of the distance d of centre point pixel are as follows:
3. the image compensation method of circle display panel as described in claim 1, which is characterized in that the calculating pixel compensation
The calculation formula of the selected pixel compensation weight ra in weight step further includes d >=R1And d≤R2When value, meter
Calculate formula are as follows:Wherein R1For the threshold value that is above limited, R2It is choosing for lower threshold, d
Pixel is determined at a distance from centre point pixel.
4. the image compensation method of circle display panel as described in claim 1, which is characterized in that the pixel include R, G,
B sub-pixel.
5. the image compensation method of circle display panel as described in claim 1, which is characterized in that the pixel is arranged in array
Cloth.
6. a kind of for implementing the compensation device of image compensation method according to claim 1, which is characterized in that including defeated
Enter unit, operation memory module and output unit；
The wherein achievable pixel image input step of the input unit and setting upper limit threshold and lower threshold step, for defeated
The pixel image and setting upper limit threshold for entering round display panel to be processed are R1It is R with lower threshold2, and it is defeated to generate first
Signal is sent to the operation memory module out；
The achievable pixel distance of operation memory module calculates step, calculates pixel compensation weight step and calculate compensated
Pixel gray level value step calculates the choosing according to the content of first output signal for receiving first output signal
Determine pixel and centre point pixel distance d, the selected pixel compensation weight ra and compensated pixel gray level value imnew, and
Result is generated into the second output signal and is sent to the output unit；
The achievable compensated pixel gray level value step of output of output unit is right for receiving second output signal
The pixel gray level value within the scope of each limit threshold value and lower threshold after pixel compensation should be exported and according to compensated pixel
Grayscale value shows image.
7. image compensation device as claimed in claim 6, which is characterized in that wherein the input unit is keyboard, mouse, touching
Touch one of screen or camera or combinations thereof.
8. image compensation device as claimed in claim 6, which is characterized in that wherein the operation memory module includes operation list
To implement operation and store function respectively, the arithmetic element is CPU for member and storage unit, the storage unit include memory,
One of hard disk or USB flash disk or combinations thereof.
9. image compensation device as claimed in claim 6, which is characterized in that wherein the output unit include display and/
Or printer.
10. image compensation device as claimed in claim 6, which is characterized in that the wherein input unit and output unit group
It is combined using touch screen.
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