Patent ID: 7433534

Claim:
An edge emphasizing circuit, comprising: a filter which performs a filtering process on pixel data of a noted pixel forming raw image data representative of an object scene image so as to output processed pixel data; a first creator which creates edge emphasizing data by subjecting to a weighted adding process the pixel data of the noted pixel forming the raw image data and the processed pixel data; a second creator which creates luminance data based on the raw image data; an adder which adds the edge emphasizing data created by said first creator to the luminance data created by said second creator; a detector which detects a degree of an edge of a portion of the object scene image including the noted pixel out of the object scene image based on the pixel data of the noted pixel and pixel data of surround pixels which surround the noted pixel; and a controller which controls said first creator based on a detection result of said detector such that a weighting amount added to the processed pixel data increases as the degree of the edge of the portion of the object scene image decreases.