Patent ID: 8570369

Claim:
An image processing device, comprising: a reflected light image acquiring unit that acquires a reflected light image of an observed region, the reflected light image being obtained from light reflected from the observed region; a fluorescent light image acquiring unit that acquires a fluorescent light image of the observed region, the fluorescent light image being obtained from fluorescent light that is generated from the observed region by excitation light; a variation detecting unit that detects a variation component of the reflected light image on the basis of an old reflected light image of the observed region and the reflected light image, the old reflected light image and the reflected light image being acquired by the reflected light image acquiring unit; a correction process unit that performs a correction process on a luminance value of the reflected light image, taking the variation component into account; and a normalization process unit that performs a normalization process on a luminance value of the fluorescent light image, using the luminance value of the reflected light image on which the correction process is performed by the correction process unit; wherein the fluorescent light image is an image different from the reflected light image; and wherein the correction process unit sets higher the corrected luminance value of the reflected light image with an increase in the variation component, and sets lower the corrected luminance value of the reflected light image with a decrease in the variation component.