A novel edge detector based on light refraction law

In this paper, light refraction law based a novel edge detection algorithm was described. In the proposed method, center pixel deemed a light source. Neighbor pixels are deemed different environments refracted the light. The minimum value of ratio of these different environments refraction indices qualifies the edge knowledge of center pixels. Edges are determined rigorously in the image through this designed method. As compared with classical method, there isn't very complex computing in this method.