PROBLEM TO BE SOLVED: To enable a more accurate index value to be acquired by reducing an error attributed to the scattering.SOLUTION: An analyzer includes a light source device, an image pick-up device for imaging a biological tissue illuminated with light generated by the light source device and creating color image data, an index calculation part for calculating an index X indicating a feature amount Q of the biological tissue based on the color image data, and a feature amount acquisition part for acquiring the feature amount Q based on the index X. The feature amount acquisition part includes a contribution degree calculation part for calculating a contribution degree C of the scattering to spectral characteristics of the biological tissue based on monochrome image data of at least two colors included in the color image data, and acquires the feature amount Q based on the index X and the contribution degree C.SELECTED DRAWING: Figure 9【課題】散乱に起因する誤差を低減し、より精度の高い指標値の取得を可能にする。【解決手段】本発明の一実施形態に係る分析装置は、光源装置と、光源装置が発生する光により照明された生体組織を撮像してカラー画像データを生成する撮像素子と、カラー画像データに基づいて、生体組織の特徴量Ｑを示す指標Ｘを計算する指標計算部と、指標Ｘに基づいて、特徴量Ｑを取得する特徴量取得部と、を備え、特徴量取得部が、カラー画像データに含まれる少なくとも２色の単色画像データに基づいて、生体組織の分光特性への散乱の寄与度Ｃを計算する寄与度計算部を備え、指標Ｘ及び寄与度Ｃに基づいて特徴量Ｑを取得する。【選択図】図９
