Method and system for dynamic backlight local control liquid crystal display
A local control and liquid crystal display technology, applied to static indicators, instruments, etc., can solve the problems of reducing image contrast and color saturation, black images are not black, etc.
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[0069] Example 1
[0070] see figure 1 , the present invention discloses a dynamic backlight local control liquid crystal display method, the method includes the following steps:
[0071] [Step S1] Input the video signal image.
[0072] [Step S2] Calculate the pixel brightness of the input image.
[0073] The color image is represented by RGB three colors, and there are many methods for calculating the brightness of the color image. The present invention takes the maximum value of the RGB value as the brightness: I=MAX(R, G, B), where MAX is the maximum value. value operation.
[0074] [Step S3] Calculate the local brightness representative value of the input image.
[0075] The step S3 includes the following steps:
[0076] Step S31, count the brightness histogram of the input image, start from the maximum brightness level, and accumulate the number of pixels of all brightness levels between the current brightness level and the maximum brightness level; if the accumulate...
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