This disclosed image processing device, in an embodiment, comprises an illumination unit, which, in a polarized light image capture mode, sequentially projects, upon a photographic subject, a first illumination light in a state of being polarized in a first direction, and a second illumination light in a state of being polarized in a second direction which intersects with the first direction, and in a non-polarized light image capture mode, projects a non-polarized illumination light upon the subject. The illumination unit sequentially projects the first and second illumination lights such that a wavelength region of the first illumination light and a wavelength region of the second illumination light have non-overlapping portions. The image processing device further comprises: polarized light image capture elements； and a polarized light mosaic processing unit which, in the polarized light image capture mode, obtains a first polarized light image when the first illumination light is projected upon the photographic subject, and a second polarized light image when the second illumination light is projected upon the photographic subject, and in the non-polarized light image capture mode, obtains a non-polarized light image when the non-polarized illumination light is projected upon the photographic subject. A depression region is detected in the surface of the photographic subject on the basis of the first and/or the second polarized light image, and an image is formed wherein the depression region is enhanced.La présente invention porte sur un dispositif de traitement d'image, selon un mode de réalisation, qui comprend une unité d'éclairage, qui, selon un mode de capture d'image en lumière polarisée, projette de manière séquentielle, sur un sujet photographique, une première lumière d'éclairage dans un état de polarisation dans une première direction, et une seconde lumière d'éclairage dans un état de polarisation dans une seconde direction qui intersecte la première
