The present invention provides an image processing device that has an arrangement of first pixels for generating first color signals of a first luminance component which is the luminance component of white illumination light including light of red, green, and blue wavelength bands, second pixels for generating second color signals of a second luminance component which is the luminance component of narrow band illumination light, and third pixels for generating third color signals of a color component different from the first and second luminance components, with the density of the first pixels being higher than the densities of the second and third pixels, and that generates an image signal having a color signal of each color component by interpolating the signal of the missing color component on the basis of the color signals generated by each of the pixels, wherein the image processing device further comprises: a specific frequency component extraction unit which extracts a specific frequency component signal having a predetermined spatial frequency component from the color signal of the first luminance component out of the color signals of each of the color components generated by interpolation and a specific frequency component addition unit which adds the specific frequency component signal extracted by the specific frequency component extraction unit to the color signal of a color component that is different from the first luminance component.La présente invention concerne un dispositif de traitement dimage qui comporte un agencement de premiers pixels pour générer des premiers signaux de couleur dune première composante de luminance qui est la composante de luminance de lumière déclairage blanche comprenant une lumière de bandes de longueur donde rouge, verte et bleue, des deuxièmes pixels pour générer des deuxièmes signaux de couleur dune deuxième composante de luminance qui est la composante de luminance de lumière déclairage à bande étroite, et des troisiè
