1. A data processing apparatus, comprising: a generating section for generating, in response to an applied model parameter, a three-dimensional shape model and a texture image related to respective portions of the three-dimension shape model; a receiving section receiving an input two-dimension image; a modulating section for modulating said input two-dimensional image into said three-dimension shape model; and a calculating section for calculating a parameter in accordance with the modulated two-dimensional image and applying the calculated parameter to said generating section.