Patent ID: 8860853

Claim:
An image signal correcting device comprising: at least a color mixing corrector that receives an image signal arising from photoelectric conversion by a color imaging element, and corrects a color mixing component included in the image signal; a storage unit that stores a color mixing correction coefficient set in advance for each of a plurality of areas segmented in matching with an imaging plane of the color imaging element; a shading corrector that receives the image signal corrected by the color mixing corrector, and carries out pixel shading correction for the corrected image signal; and wherein the color mixing corrector approximates the color mixing correction coefficient read out from the storage unit by interpolation to acquire a color mixing rate at a necessary pixel position in color mixing correction, and corrects the color mixing component by using the acquired color mixing rate; and wherein the color mixing corrector carries out color mixing correction by performing a multiply-accumulate operation of acquired color mixing rates and input image signals and executing subtraction processing of an input image signal and a result of the multiply-accumulate operation.