Patent ID: 8265417
Filing Date: 2012-09-11
Classification: G06T

Abstract:
1. An image processing apparatus, comprising: luminous intensity information separating means for separating input image information from an input image into global luminous intensity information and local luminous intensity information; shadow component generating means for generating a shadow component of the input image on the basis of the local luminous intensity information; image compositing means for generating output image information by adding shadow image information to the input image information, with the shadow image information being generated from the shadow component and from a value based on the input image information; normal vector computing means for computing a luminous intensity gradient of the local luminous intensity information as a normal vector with respect to an object surface in the input image, light vector computing means for computing, on the basis of the local luminous intensity information, a light vector that indicates the direction of a light source, and normalized inner product processing means for computing the shadow component on the basis of the normalized inner product between the normal vector and the light vector.