PROBLEM TO BE SOLVED: To provide an endoscope apparatus capable of detecting a position of a specific area formed on a subject by measured auxiliary light by appropriately controlling a quantity of light of the measured auxiliary light, an operation method for the same, and a program for the endoscope apparatus.SOLUTION: A position of a specific area formed by measured auxiliary light on a subject is identified on the basis of a first captured image obtained by capturing a subject illuminated by illumination light and the measured auxiliary light. A quantity of the measured auxiliary light is controlled on the basis of at least one or more of an observation distance showing a distance from the subject, a quantity of the illumination light, and the position of the specific area.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】計測補助光の光量を適切に制御することによって、計測補助光により被写体上に形成される特定領域の位置を検出可能にすることができる内視鏡装置及びその作動方法並び内視鏡装置用プログラムを提供する。【解決手段】照明光及び計測補助光によって照明された被写体を撮像して得られる第１撮像画像に基づいて、被写体上において計測補助光によって形成される特定領域の位置を特定する。被写体との距離を示す観察距離、照明光の光量、又は特定領域の位置のうち少なくとも１以上に基づいて、計測補助光の光量を制御する。【選択図】図３
