Circuit and method for contour enhancement

Details Circuit and method for contour enhancement Circuit and method for contour enhancement

2008-04-01

2008-04-01

Tran, Nhan T. (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S241000, C348S222100, C348S625000, C382S266000, C358S003270

Reexamination Certificate

active

10626726

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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