Generation method for gamma mapping table
A generation method and technology of corresponding tables, applied in the direction of instruments, static indicators, etc., can solve the problems of increasing the manufacturing cost of the display, reducing the speed of the display, etc.
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Embodiment 1
[0015] Please refer to figure 1 , which is a flowchart of a method for generating a gamma correspondence table according to the first embodiment of the present invention. The method for generating the gamma correspondence table is used in a display. First, select a plurality of original grayscale values [x(1),...,x(2 m )], m is a positive integer, such as 8. In step 102, the corresponding original gray scale values [x(1), . . . , x(2) are calculated according to the gamma curve m )] n-bit corrected grayscale values [y(1),...,y(2 m )], n is a positive integer, such as 10. These corrected grayscale values [y(1), ..., y(2 m )] are the original grayscale values [x(1),...,x(2 m )] corresponds to the gamma correspondence of the gamma curve, and the corrected grayscale value y(i) is equal to ((x(i) / (2 m -1)) γ ×(2 n -1)), wherein, i=1~2 m , γ is the gamma coefficient.
[0016] Next, in step 104, the difference (y(i+1)−y(i)) between two adjacent corrected gray sca...
Embodiment 2
[0019] Please refer to figure 2 , which is a flowchart of a method for generating a gamma correspondence table according to the second embodiment of the present invention. The method for generating the gamma correspondence table is used in the display. First, select a plurality of original grayscale values [x(1),...,x(2 m )], m is a positive integer, such as 8. In step 202, according to the first gamma curve, calculate the corresponding original gray scale values [x(1), . . . , x(2 m )] n-bit correction reference value [y 1 (1),...,y 1 (2 m )], n is a positive integer, such as 10. At the same time, according to the second gamma curve, calculate the corresponding original grayscale values [x(1),...,x(2 m )] n-bit corrected grayscale value [y 2 (1),...,y 2 (2 m )], these calibration reference values [y 1 (1),...,y 1 (2 m )] are the original grayscale values [x(1),...,x(2 m )] corresponding to the gamma correspondence of the first gamma curve, these corre...
Embodiment 3
[0023] Please refer to image 3 , which is a flowchart of a method for generating a gamma correspondence table according to the third embodiment of the present invention. The method for generating the gamma correspondence table is used in a display. First, select a plurality of original grayscale values [x(1),...,x(2 m )], m is a positive integer, such as 8. In step 302, the corresponding original grayscale values [x(1), . . . , x(2) are calculated according to the gamma curve m )] n-bit corrected grayscale values [y(1),...,y(2 m )], n is a positive integer, such as 10. These corrected grayscale values [y(1), ..., y(2 m )] are the original grayscale values [x(1),...,x(2 m )] corresponds to the gamma correspondence of the gamma curve, and the corrected grayscale value y(i) is equal to ((x(i) / (2 m -1)) γ ×(2 n -1)), wherein, i=1~2 m , γ is the gamma coefficient.
[0024] Next, in step 304, the gray-scale difference w(i)={(y(i+1)-y(i)), i=1, 3,... } or {(y(i)...
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