PROBLEM TO BE SOLVED: To provide a skin color analyzer for an animal or a plant that can compensate the sensitivities of an RGB image sensor that differ between camera manufacturers, or an error due to an angle formed by a light source and a subject.SOLUTION: A white paper sheet is put on the skin of an animal or a plant, a reflection luminance and an area of each RGB component on the paper sheet are measured to compensate the influence of sensor sensitivity and a light source spectrum of an image sensor, and changes in the reflection luminance due to an angle formed by a light source and a subject are compensated. As a result, the skin color analyzer can output a blotch/freckle extraction image that is vivid and accurate, and a transitive graph of blotch/freckle areas by density, with respect to the human skin, and can output a maturity degree signal in a carotene-type drying process of agricultural and marine products such as leaf tobacco, a shiitake mushroom, and laver, or a maturity degree signal in a maturing process of agricultural products containing an anthocyanin or in a drying process thereof.COPYRIGHT: (C)2013,JPO&INPIT【課題】動植物各社カメラメーカー毎の異なるRGBイメージセンサ感度のバラツキや、光源と被写体の角度る誤差を補正可能な肌色解析装置を提供する【解決手段】動植物の肌に白い紙を貼り、その紙のRGB各成分の反射輝度と面積を計測することでイメージセンサのセンサ感度と光源スペクトルの影響を補正し、かつ光源と被写体の角度による反射輝度の変化を補正することにより、人肌では鮮明で確度の高いシミ、ソバカス抽出画像とシミ、ソバカスの濃度別面積の推移グラフや、葉煙草、椎茸、海苔など農水産物のカロテン型乾燥過程又は、アントシアニンを含む農産物の成熟過程、又はその乾燥過程の完熟強度信号を出力することが出来る。【選択図】図1
