Patent ID: 7456876

Claim:
An image processing circuit, comprising: a color sensitivity correction circuit which adds or subtracts a predetermined offset to or from a pixel signal obtained, for each column, by amplifying photoelectric conversion signals of pixels, and multiplies a result of the addition or subtraction by a predetermined gain, said pixels having a photoelectric conversion element respectively and being arranged in column and row directions, wherein said predetermined offset includes a first offset, which is set according to each color, and a second offset, which is set according to a plurality of columns, and wherein said color sensitivity correction circuit comprises an offset generation section, which compares pixel signals for each column with a reference value corresponding to brightness of at least one frame of an image, dynamically generates the second offset according to the result of the comparison, and updates the dynamically generated second offset as the second offset, wherein said reference value is determined based on a gain of an amplifier for amplifying said pixel signals corresponding to at least one frame of an image.