The image processing device according to the present invention comprises: a first image acquisition device which acquires a portrait image, a first color conversion processing device which subjects the acquired portrait image to a first color conversion, a second image acquisition device which acquires a non-portrait image relating to the portrait image, a second color conversion processing device which subjects the non-portrait image to a second color conversion that is different from the first color conversion, an image superimposing device which superimposes the portrait image which is subjected to the first color conversion and the non-portrait image which is subjected to the second color conversion, and an image output device which outputs the superimposed image.