Method for correcting multi-segmented Gamma curve
A curve correction, curve technology, applied in the direction of cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of poor definition, poor consistency, poor image layering, etc., to achieve high definition and excessive image color. Uniform, fine-grained effect
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[0030] The number of Gamma gray levels corresponding to the Gamma curve of the flat-panel TV is 256 levels. Refer to Figure 1, the horizontal axis is the number of Gamma gray levels of the multi-segment Gamma curve, and the vertical axis is the brightness percentage of the multi-segment Gamma curve (expressed as a percentage). The Gamma curve is divided into three parts according to the range of different Gamma gray levels:
[0031] Dark gray scale part: the Gamma curve segment from the origin to point A, the corresponding Gamma gray scale number is 0-128, and the Gamma curve coefficient is taken as 2.3;
[0032] Bright gray scale part: Gamma curve segment from point B to point C, the number of gray scales is 180-255, and the Gamma curve coefficient is 1.9;
[0033] The middle part: the Gamma curve segment from point A to point B, the number of Gamma gray scales is 129 to 179. The Gamma curve segment from point A to point B is divided into multiple segments, and t...
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