PROBLEM TO BE SOLVED: To provide an endoscope apparatus in which a user does not need to adjust irradiation light quantity intentionally, and a captured image which is bright and has stable tint can always be obtained without being limited by an imaging distance with respect to the observation of the structure or components of living bodies, such as a surface layer fine blood vessel.SOLUTION: The endoscope apparatus includes: a first light source section 32 that irradiates first narrowband light a second light source section 34 that irradiates second narrowband light or broadband light a light source control unit 48 which controls the irradiation and irradiation light quantity, respectively an imaging unit 26 which obtains a captured image, using return light from an object, to output captured image information a luminance value calculating unit 50 which calculates the luminance value of the captured image a light source light quantity changing unit 55 which changes the irradiation light quantity according to the luminance value a white balance adjustment value calculating unit 57 which calculates a white balance adjustment value for taking the white balance of the captured image from the changed irradiation light quantities and a gain adjusting unit 59 which adjusts the gain so that the white balance of the captured image becomes a basis white balance.COPYRIGHT: (C)2012,JPO&INPIT【課題】表層微細血管等の生体の構造・成分の観察に関して、意図的に照射光量を調整する必要なく、撮像距離に限らず、明るくかつ色味が安定した撮像画像を得ることができる内視鏡装置を提供する。【解決手段】第1の狭帯域光を照射する第1の光源部32と、第2の狭帯域光又は広帯域光を照射する第2の光源部34と、照射及び照射光量をそれぞれ制御する光源制御手段48と、被写体からの戻り光により撮像画像を撮像し、撮像画像情報を出力する撮像手段26と、撮像画像の輝度値を算出する輝度値算出手段50と、輝度値に応じて照射光量を変更する光源光量変更手段55と、変更された照射光量から撮像画像のホワイトバランスを取るためのホワイトバランス調整値を算出するホワイトバランス調整値算出手段57と、撮像画像のホワイトバランスが基準となるホワイトバランスとなるようにゲインを調整するゲイン調整手段59と、を有する。【選択図】図1
