Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 1, 2008
Patent Application Number
10626726
Date Filed
July 25, 2003
Patent Primary Examiner
Patent abstract
A semiconductor integrated circuit includes a differential calculating unit which obtains a differential between a value of a pixel of interest and values of surrounding pixels contained in an image signal supplied from an image sensor, a dead-zone generating unit which defines a predetermined range of pixel values, and a comparison unit which checks whether the differential falls outside the predetermined range, wherein contour enhancement is applied to the pixel of interest in response to a determination by the comparison unit that the differential falls outside the predetermined range.
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