Apparatus for removing false contour and method thereof

Details Apparatus for removing false contour and method thereof Apparatus for removing false contour and method thereof

2006-03-03

2010-02-09

Johns, Andrew W (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S264000, C382S266000

Reexamination Certificate

active

07660484

ABSTRACT:
An apparatus and method for removing a false contour are provided. The apparatus includes a false contour region detector which detects a false contour region formed in a flat region of similar pixel values; an edge and detail region detector which detects an edge region and a detail region of the input image; a detector which detects the flat region by removing the edge region and the detail region of the false contour region; and a smoothing part which smoothes the flat region with the false contour by shuffling the similar pixel values of the flat region with pixels of the detected false contour region. The method includes detecting a false contour region; detecting an edge region and a detail region; detecting a flat region with the false contour; and smoothing the flat region with the false contour by shuffling the similar pixel values.

REFERENCES:
patent: 2004/0080517 (2004-04-01), Song et al.
patent: 2003-15587 (2003-01-01), None
patent: 2003-157045 (2003-05-01), None
patent: 2001-0064125 (2001-07-01), None

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