An abnormal candidate area determination section which determines a candidate region of an abnormal portion from an image of the lumen of the living body image obtained and an abnormal region determination unit, based on the shape information of the candidate region and the peripheral region correlation shape information, determines whether an abnormal candidate region is found.
To provide an image processing apparatus and the like, can be accurately identify anomalies portion and other objects of the same type have the color information of the abnormal portion. The image processing apparatus (1) includes: an abnormal candidate area determination section (110) which determines a candidate region of an abnormal portion from an image of the lumen of the living body image obtained; Zhou Bian region determining unit (120) which determines a candidate region a Zhou Bian region; shape information calculating unit (130) which calculates a candidate region and Zhou Bian region shape information in the depth direction of the screen; and an abnormal region determination unit (140), based on the shape information of the candidate region and the peripheral region correlation shape information, determines whether an abnormal candidate region.