A plurality of images of an observation target are consecutively acquired with time intervals, coordinates of an observation position are identified in each image, and a plurality of corresponding points, which are pixel positions at which a image and a previously captured image correspond, are detected, wherein in this endoscope apparatus, when the coordinates of the observation position cannot be identified in the image, the coordinates of the observation position identified in the previously captured image are transformed to coordinates in a coordinate system of the image, and a direction of the transformed coordinates of the observation position with respect to the image center is calculated and is displayed together with the image.
