An image signal processing device includes: a color mixture correction circuit correcting color mixture among pixels arranged in the row and column directions, having plural light receiving units which perform photoelectric conversion and including filters dividing light incident on respective plural light receiving units into plural color components, wherein the color mixture correction circuit performs correction processing to a signal value of a target pixel of color mixture correction by associating respective signal values of neighboring pixels adjacent to the target pixel of color mixture correction with correction parameters unique to an address of each signal.