Picture processing apparatus has a pixel judgment circuit and a pixel
correction circuit. The pixel judgment circuit includes a target pixel
detection circuit for detecting a target pixel having a peak level from
the input picture signal, and an edge detection circuit for detecting
edges, each present at a distance of n pixels (n.gtoreq.1) preceding and
succeeding the target pixel. Further, the pixel correction circuit has a
correction coefficient selection circuit, wherein a peak level correction
coefficient is selected according to an output from the target pixel
detection circuit, and an edge correction coefficient is selected
according to an edge detection output. With the picture processing
apparatus, a level of the target pixel is corrected and an edge of the
input picture signal is corrected with the pixels of the input picture
signal being corrected according to the peak level correction coefficient
and the edge correction coefficient.
