Device for correcting contours in an image and use of such a device in a color television camera
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United States of America Patent
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May 31, 1988
Grant Date -
N/A
app pub date -
Jun 3, 1986
filing date -
Jun 5, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device is provided for correcting the contours in an image comprising in the green channel a contour extraction circuit followed by a circuit for processing these contours. It also comprises in the red channel a second contour extraction circuit followed by a second circuit for processing the contours. A validation circuit only validates the contour signal coming from the red channel when the red level is relatively high with respect to the green level. In this case, the red contour signal is superimposed on the contour from the green channel for correcting the contours of the three chrominance channels, by means of a mixing circuit.
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