摘要 |
A bidirectional texture function image as a bidirectional reflectance distribution function for each pixel of a target object is input. An average bidirectional reflectance distribution function within at least a partial region of the bidirectional texture function image data, a power of the bidirectional reflectance distribution function of each pixel of the bidirectional texture function image data, and a peak position of each pixel of the bidirectional texture function image data are stored in a storage apparatus as information indicating the bidirectional reflectance distribution function for each pixel. |