Circuit arrangement for enhancing the sharpness of video signal

Details Circuit arrangement for enhancing the sharpness of video signal Circuit arrangement for enhancing the sharpness of video signal

1983-06-24

1986-04-08

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358166, H04N 964, H04N 514, H04N 5208

Patent

active

045816310

ABSTRACT:
In order to enhance the sharpness of edges, the incoming video signal, for example a color-difference signal, is stored upon the occurrence of an edge until the end of the transition with the value occuring before the edge appeared. The transition interval is determined in that the video signal is differentiated and passed through a threshold device. At the end of the transition interval, a change-over is effected to the new signal value.

REFERENCES:
patent: 4296433 (1981-10-01), Rzeszewski

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