Contour correction apparatus and contour correction method

Details Contour correction apparatus and contour correction method Contour correction apparatus and contour correction method

1992-04-29

1993-09-07

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358162, H04N 514, H04N 5208

Patent

active

052434273

ABSTRACT:
A contour correction apparatus that includes memory for storing inverse correction values of a contour correction control signal in a reference table and a D/A converter for converting the inverse correction signal value output from the memory to an analogue signal. The apparatus improves the non-linear characteristic of the contour correction control quantity obtained. This control quantity controls the variation in the preshoot or overshoot added to a video signal according to the magnitude of a high-frequency component and the amount of correlation between horizontal scanning lines of the video signal, thereby obtaining a linear control characteristic.

REFERENCES:
patent: 4654709 (1987-03-01), Umezawa

Affiliated with

Also associated with

Rating

Contour correction apparatus and contour correction method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Contour correction apparatus and contour correction method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contour correction apparatus and contour correction method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-491823