An image processing device includes: a crosstalk amount calculating unit for calculating an evaluation value of crosstalk amount included in an output signal from a pixel to be corrected in an imaging device; a crosstalk correction coefficient calculating unit for calculating a crosstalk correction coefficient based on the evaluation value output from said crosstalk amount calculating unit; and a crosstalk correcting unit for eliminating crosstalk amount included in an output signal of said pixel to be corrected, using said crosstalk correction coefficient, wherein the crosstalk correcting unit subtracts, from an output signal of a pixel to be corrected, a value obtained by multiplying the output signal of a pixel adjacent to said pixel to be corrected by said crosstalk correction coefficient, thereby eliminating amount of crosstalk.