PROBLEM TO BE SOLVED: To provide an endoscope apparatus and the like, which maintains a region of interest at a proper luminance level.SOLUTION: The endoscope apparatus includes an image acquisition unit, a region of interest setting unit 413, and a dimming control unit 416. The image acquisition unit acquires a captured image including a subject image obtained by irradiating a subject with illumination light from a light source unit. The region of interest setting unit 413 sets the region of interest for the captured image. The dimming control unit 416 controls the light quantity of illumination light on the basis of the set region of interest. The region of interest setting unit 413 calculates a feature amount on the basis of the captured image and sets the region of interest on the basis of an area having a predetermined feature amount.SELECTED DRAWING: Figure 32COPYRIGHT: (C)2016,JPO&INPIT【課題】注目領域を適正な明るさに維持することが可能な内視鏡装置等を提供する。【解決手段】内視鏡装置は、光源部からの照明光を被写体に照射することにより得られた被写体像を含む撮像画像を取得する画像取得部と、撮像画像に対して注目領域を設定する注目領域設定部413と、設定された注目領域に基づいて、照明光の光量を調光制御する調光制御部416と、を含む。注目領域設定部413は、撮像画像に基づいて特徴量を算出し、所定の特徴量を有する領域に基づいて注目領域を設定する。【選択図】図32