Patent ID: 7315309

Claim:
A color-information processing method for displaying a three-dimensional object of color distribution based on sample points, said method comprising: a color-distribution-information input step, of inputting color coordinate values in a second color system corresponding to sample points in a first color system; a viewpoint information setting step, of setting viewpoint information according to a user instruction; a range setting step, of setting a range in color distribution corresponding to the sample points, according to a user instruction; a step of selecting sample points corresponding to the range from the sample points in the first color system and obtaining the color coordinate values in the second color system corresponding to the selected sample points; a generation step of generating surface information of the three-dimensional object based on the obtained color coordinate values in the second color system corresponding to the selected sample points and generating color information of the surface of the three-dimensional object based on the obtained color coordinate values in the second color system corresponding to the selected sample points; and a display step of displaying the three-dimensional object corresponding to the viewpoint information based on the surface information of the three-dimensional-object and the color information of the surface, wherein the sample points are regularly placed in the form of a grid in the first color system, wherein the surface information of the three-dimensional object consists of triangles, and wherein each triangle corresponds to one combination of the triangles selected, such that a volume of the three-dimensional object is increased, from two combinations of triangles generated in each of minimum quadrangles formed by the selected sample points.