Abstract: The present invention is directed to an imaging system which corrects colors of taken images of objects at practical speed and displays the image colors correctly. The imaging system comprises an imaging device (23) for taking a color image and a lens (21), and a reflection surface (18) is provided within the maximum field of view (Vm, Vm) to diffuse-reflect an image of an object (Ob) so that it impinges upon the imaging device (23) through the lens (21). Each main coordinates (Xmi, Ymi) of a direct image obtained as an object point (P) on the object (Ob) is imaged on the imaging device (23) is assigned to corresponding sub-coordinates (Xni, Yni) of an indirect image of the object point (P) formed from the reflection surface (18) on the imaging device (23). The R, G, B components in pixels at the individual main coordinates are respectively divided by the same components at the corresponding sub-coordinates to provide a color-corrected image.