Contour correction apparatus and method

Details Contour correction apparatus and method Contour correction apparatus and method

1998-08-05

2000-07-11

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Transition or edge sharpeners

382266, H04N 521

Patent

active

060880651

ABSTRACT:
In a contour correction apparatus, a first sample is selected from among at least five plural samples of an input digital video signal as an indication of an upper limit value. The plural samples correspond to neighboring pixels respectively. The first sample has a value greater than a center value among values of the plural samples. A second sample is selected from among at least the five plural samples as an indication of a lower limit value. The second sample has a value smaller than the center value among the values of the plural samples. High-frequency signal components are generated with respect to a center sample among the plural samples. The high-frequency signal components are added to the center sample among the plural samples to generate an addition-resultant signal. A value of the addition-resultant signal is limited to within a range between the upper limit value and the lower limit value.

REFERENCES:
patent: 5293541 (1994-03-01), Ito
patent: 5467145 (1995-11-01), Limberg
patent: 5469225 (1995-11-01), Hong
patent: 5668606 (1997-09-01), Okamoto et al.
patent: 5695126 (1997-12-01), Hong
patent: 5912702 (1999-06-01), Sudo
patent: 5959693 (1999-09-01), Wu et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-547165