An endoscope device includes: an normal light image acquisition unit that acquires an normal light image； a special light image acquisition unit that acquires a special light image； a blended image generation unit that generates a blend image by combining one color component image from among a plurality of color component images constituting the normal light image and the special light image； and a superimposed image generation unit that generates a color superimposed image by combining the blended image with another color component image. The blended image generation unit generates the blended image by replacing a part of the pixels of the one color component image with the corresponding pixels of the special light image such that they are blended in a substantially uniform distribution over the entire blended image.
