An image processing apparatus includes: a dividing processing circuit configured to divide an imaging signal that is obtained by capturing an image of inside of a subject into a first base component and a detail component, the first base component corresponding to an illumination component of an object, the detail component corresponding to a reflectance component of the object； a color enhancement processing circuit configured to generate a second base component by performing a color enhancement process on the first base component, the color enhancement process being a process of increasing color gradation of a mucosa color in a predetermined color space； and a synthesizing circuit configured to synthesize the second base component and the detail component to output a synthesized signal.
