An image processing device includes a motion predicting unit that detects, from a criteria image and a reference image, the motion vector of each of blocks constituting an image, a motion compensating unit that generates a motion-compensated image by performing motion compensation on the reference image, using the motion vectors, a correction value calculating unit that calculates a correction value for correcting the pixel value of a current pixel in a current block in the motion-compensated image based on a boundary difference value between the criteria image and the motion-compensated image, and an adding unit that adds the correction value to the pixel value of the current pixel in the motion-compensated image.