Image de-ringing filter

Details Image de-ringing filter Image de-ringing filter

2008-05-23

2009-08-04

Kassa, Yosef (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S260000, C382S275000, C358S003260, C358S003270

Reexamination Certificate

active

07570834

ABSTRACT:
An image de-ringing filter system and method are provided. The method comprises: accepting image pixels; collecting data from a first group of pixels neighboring a test pixel; in response to the first group data, deciding if the test pixel includes image ringing artifacts; collecting data from a second group of pixels neighboring the test pixel; in response to the second group data, generating a filtered value (FV); and, replacing the test pixel actual value with FV. Typically, collecting data from the first and second group of pixels includes the performance of a mathematical operation. For example, a matrix may be defined for the multiplication of the first group of pixels. Values of pixels on a first side of the coordinate axis may be subtracted from pixels on a second side of the coordinate axis, opposite of the first side. Then, the difference is compared to a threshold.

REFERENCES:
patent: 5581371 (1996-12-01), Spaulding et al.
patent: 5819035 (1998-10-01), Devaney et al.
patent: 6115503 (2000-09-01), Kaup
patent: 6539060 (2003-03-01), Lee et al.
patent: 6728414 (2004-04-01), Chang et al.
patent: 7003174 (2006-02-01), Kryukov et al.

Affiliated with

Also associated with

Rating

Image de-ringing filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image de-ringing filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image de-ringing filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4054046