IMAGE PROCESSING METHOD FOR REALIZING QUICK BUMP MAPPING, IMAGE PROCESSING DEVICE, COMPUTER PROGRAM, AND SEMICONDUCTOR DEVICE

摘要

An image processing apparatus capable of bump mapping at high speed regardless of fineness of an image.

The image processing apparatus includes a normal vector mapping section 101 for dividing a surface of an object into a plurality of divided surfaces and generating a first normal vector pointing to the vertical direction of each of the divided surfaces, a luminance value mapping section 105 for replacing the first normal vector of each divided surface with a luminance value associated with one of a predetermined number of second normal vectors, each associated with a different luminance value, which is most analogous in characteristic to the first normal vector, and a graphic processor 106 for shading each divided surface according to the replaced luminance value.