Color detecting circuit
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United States of America Patent
Stats
-
Jul 28, 1992
Grant Date -
N/A
app pub date -
Aug 8, 1990
filing date -
Aug 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the invention, in order to correct only the hue of specific region of color correction of an image processing circuit for a television receiver or the like, using color detecting means for detecting specific color, color signals are inputted and two arbitrary demodulation axes are obtained, and only negative component or positive component is extracted respectively from the output signals of the two means and the logic product of the extracted output signals is obtained. On the other hand, the output of the color detecting means is controlled in response to the signal level of the prescribed color signal, and then adding is performed to the prescribed color signal and the color correction is performed.
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Cited Art Landscape
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