Sharpness control for a television image

Details Sharpness control for a television image Sharpness control for a television image

1990-10-01

1992-06-09

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358162, H04N 5208

Patent

active

051212099

ABSTRACT:
A video signal processing system includes a signal interpolator associated with time compression/expansion apparatus. The interpolator is preceded by a high frequency peaking network which responds to a variable control signal representative of a desired amount of displayed image sharpness. In a disclosed embodiment the peaking network responds to a control signal which is a function of a distance between image pixels, and a variable signal from a viewer adjustable image sharpness control.

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