Color signal emphasizing/de-emphasizing circuit
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United States of America Patent
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-
Dec 31, 1991
Grant Date -
N/A
app pub date -
May 4, 1990
filing date -
May 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A color signal emphasizing/de-emphasizing method and apparatus are 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. This 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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Cited Art Landscape
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