An endoscope apparatus includes a detecting section to which an observation image of a subject is sequentially inputted, the detecting section being configured to detect a characteristic region in the observation image based on a predetermined feature value concerning the observation image, and an emphasis processing section configured to apply, when the characteristic region is continuously detected in the detecting section, emphasis processing of a position corresponding to the characteristic region to the observation image of the subject inputted after elapse of a first predetermined time period from a time when the characteristic region is detected.
