Filter for combined de-ringing and edge sharpening

Details Filter for combined de-ringing and edge sharpening Filter for combined de-ringing and edge sharpening

2006-02-21

2006-02-21

Mehta, Bhavesh M. (Department: 2621)

Image analysis

Image enhancement or restoration

Image filter

C382S266000

Reexamination Certificate

active

07003173

ABSTRACT:
A filter for post-processing digital images and videos, having an edge mapper, a pixel sorter, and an adaptive filter that simultaneously performs de-ringing and edge sharpening. The combined filter is computationally simpler than known methods and can achieve removal of ringing artifacts and sharpening of true edges at the same time. The present invention also includes a preferred method of simultaneously de-ringing and edge sharpening digital images and videos.

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