Color signal emphasizing/de-emphasizing circuit

Details Color signal emphasizing/de-emphasizing circuit Color signal emphasizing/de-emphasizing circuit

G - Physics

09

G

375/4, 354/236.1

G09G 5/02 (2006.01) H04N 1/62 (2006.01)

Patent

CA 2016168

A color signal emphasizing/de-emphasizing method and apparatus for outputting image data scanned from the target image in every pixel on a color print or a color display by means of three principle color signals. These method and apparatus are intended to obtain a desired hue variation or color saturation by emphasizing/de-emphasizing one of the three principle color signals. The three principle colors are classified into a primary color portion signal, a secondary color portion signal and tertiary color portion signal. These designated signals of color portions are respectively multiplied by color coefficients predetermined for each designated signal. Finally, a corrected color signal is obtained by summing up these multiplied signals in every principle color.

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