Patent ID: 8902466

Claim:
An image capturing device comprising: a reference chart including a plurality of patches; an image capturing unit configured to capture an image of an image-capturing range containing the reference chart and an object outside of the image capturing device, and to output two-dimensional image data of the image; an illuminating unit configured to illuminate the image-capturing range of the image capturing unit; an extracting unit configured to extract a background region of the patches of the reference chart from the two-dimensional image data output by the image capturing unit, the background region being in a predetermined color; an interpolating unit configured to interpolate image data regions of the patches in the two-dimensional image data output by the image capturing unit by assuming that the regions of the patches are in the predetermined color; a storage unit configured to store therein, as correction data, interpolating data that is interpolated by the interpolating unit; a correcting unit configured to correct the image data output by the image capturing unit by using the correction data; and a calculating unit configured to calculate a colorimetric value of the object based on the image data of the regions of the patches and image data of a region of the object contained in the image data corrected by the correcting unit.