Degradation Process Simulation Model for Image Enhancement

Through simulating the process of image degradation, a new model for image enhancement is proposed in this paper, the new model has explained and realized the theory of Color constancy, here it is called DPSM (degradation process simulation model). Then an algorithm based on DPSM to do image enhancement is proposed, an illumination image removal process and a contrast upgrading process are included in this algorithm. Some experimental results of the proposed algorithm as well as results of some algorithms based on Retinex are listed, applications of the algorithm to various color images yield promising results.