Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 17, 2006
Patent Application Number
10341909
Date Filed
January 14, 2003
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a method of processing digital images comprising pixel blocks, said method comprising a step of detecting blocking artifacts (41) between two adjacent blocks (Bj,bk), and a step of filtering (43) the pair of adjacent blocks. The method according to the invention further comprises a filter decision step (42) based on a comparison between luminance values of the pixels of the two adjacent blocks and a reference function representing a difference of minimum luminance values that can be seen by an observer as a function of an average luminance area of the image in order to determine whether a difference of luminance between the blocks is either or not visible to an observer.
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