Method and apparatus for processing display color signal

Details Method and apparatus for processing display color signal Method and apparatus for processing display color signal

G - Physics

09

G

375/4, 350/57

G09G 5/04 (2006.01) G09G 5/02 (2006.01) H04N 1/64 (2006.01) H04N 9/64 (2006.01)

Patent

CA 1333421

A color video signal processing method and apparatus wherein compressed display data of each pixel is formed of color identification code and color satura- tion data relative to the color or luminance of one pixel having the maximum saturation change in comparison with an adjacent pixel, and the original color data is reproduced from such display data. Furthermore, a plurality of representative colors are prepared per value of specific color, and the optimal color is selected per pixel to provide display data. A distri- bution of color appearance frequencies is employed for determining the representative colors, and such colors are so selected as to have the maximum color distances from one another.

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