PROBLEM TO BE SOLVED: To improve the color reproducibility of an endoscope device which uses narrowband light of a plurality of wavelengths for illumination light.SOLUTION: The endoscope device includes a light emission part 48 for emitting illumination light composed of a plurality of narrowband light to an observation object, an imaging element 58 for detecting reflective scattered light from the observation object to output an imaging signal, and an image processing circuit 62 for processing the imaging signal. The image processing circuit 62 includes a wavelength missing area spectral intensity information estimation part 64 for associating the peak wavelength of the narrowband light included in each color sensitivity area with the intensity of the reflective scattered light detected by an optical detection element of the imaging element 58 corresponding to the color sensitivity area to derive narrowband light scattered light spectral intensity information about each color sensitivity area of the imaging element 58, and estimating the wavelength missing area spectral intensity information on the basis of the narrowband light scattered light spectral intensity information, and a wavelength missing area correction processing part 66 for performing wavelength mission area correction processing so as to come close to an image signal obtained when irradiating illumination light with no wavelength mission area on the basis of the narrowband light spectral intensity information and the wavelength mission area spectral intensity information.COPYRIGHT: (C)2016,JPO&INPIT【課題】複数の波長の狭帯域光を照明光に用いた内視鏡装置の色再現性を向上させる。【解決手段】内視鏡装置は、複数の狭帯域光により構成された照明光を観察対象物に射出する光射出部４８と、観察対象物からの反射散乱光を検出して撮像信号を出力する撮像素子５８と、撮像信号を処理する画像処理回路６２を備えている。画像処理回路６２は、撮像素子５８の各色感度領域について、その色感度領域に含まれる狭帯域光のピーク波長と、その色感度領域に対応する撮像素子５８の光検出要素が検出する反射散乱光の強度とを関連付けて狭帯域光分光強度情報を導出し、これに基づいて波長欠落領域分光強度情報を推定する波長欠落領域分光強度情報推定部６４と、狭帯域光分光強度情報と波長欠落領域分光強度情報に基づいて、波長欠落領域のない照明光を照射したときに得られる画像信号に近づけるように、波長欠落領域補正処理を行う波長欠落領域補正処理部６６を有している。【選択図】図１
