A Method for Estimated Gray Scale Curve of Liquid Crystal Display by Human Vision
A liquid crystal display and human vision technology, applied in the field of color science and technology, can solve the problems that ordinary users cannot operate, and achieve the effect of simple display personalization
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Embodiment 1
[0066]Taking a liquid crystal display with a digital drive value of 8 bits as an example, the steps of visually estimating the gray scale curve (TRC) of this display with the human eye are described in detail as follows:
[0067] (1) Programming development such as Figure 4 interface software. The software can realize all the functions in step (1) of the content of the invention. The first line of the software interface displays 9 identical halftone patterns, the second line displays 9 different monochrome patterns, the RGB digital value of the second line image from left to right is the same as that of the fifth image (screen center) RGB digital value The magnitude relationship is -4, -3, -2, -1, +1, +2, +3, +4, so that the left and right four images can help the human eye to compare, and finally determine the fifth image ( The center of the screen) RGB value; the software can realize the increase or decrease of the single-channel RGB value through the "↑" and "↓" keys on ...
Embodiment 2
[0085] Embodiment 2: steps one and two are the same as embodiment 1. The difference is that the mathematical model in step three adopts the GOG model. The GOG model of the red (R) channel is:
[0086] R ( d R ) = ( k g , R d R + k o , R ) γ R , ( k ...
Embodiment 3
[0096] Embodiment 3: step one and two are the same as embodiment 1. The difference is that the mathematical model in step three adopts the S-curve model. The S-curve model of the red (R) channel is:
[0097] R ( d R ) = A r d R α r d R β r + C r - - - ( 10 )
[0098] where A r 、α r , β r 、C r is the undetermined coefficient, d R Normalizes the amount of display digital drive for the R channel, R(d R ) is the normalized brightness for the R channel. The R channel has 8 kinds of halftone patterns, which can correspond to the above 8 sets of equations. It is known that R(d R ) a...
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