Image Analysis Method, Image Analysis Device, Program, And Recording Medium

Abstract: Provided are an image analysis method, an image analysis device, a program, and a recording medium, which enable easy elimination of an influence due to distribution of illuminance when capturing an image of a target object. The present invention involves: acquiring first image data obtained by capturing, at a first sensitivity, an image of a target object which emits, when external energy is imparted thereto, a color in accordance with the amount of the external energy; acquiring second image data obtained by capturing an image of the target object at a second sensitivity different from the first sensitivity; calculating the ratio of an image signal value indicated by the first image data with respect to an image signal value indicated by the second image data; and estimating the amount of external energy imparted to the target object on the basis of a correspondence relationship between the ratio and the amount of external energy and the result of calculation of the ratio in the calculation step.

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