Multi-level interactive image enhancement algorithm based on fuzzy relaxation iterative procedure
Wang Cheng-ru · Optical Technique · 2009
The study of mapping function is the key of image enhancement algorithms,such as fuzzy relaxation technique establishes mapping function by using fuzzy function and iterative procedure,so the controlled image enhancement processing can be achieved by setting the feasible fuzzy relaxation parameters.In order to enhance different hierarchical image content at the same time and realize controllable image enhancement,multi-level interactive iterative fuzzy relaxation image enhancement algorithm is proposed.The fuzzy relaxation parameters of sub-level are chosen by analyzing the image histogram of sub-level.Fuzzy relaxation iterative function is established.Each sub-level image is enhanced with fuzzy relaxation iterative function,until when iterative processing reach suitable times and the results perform well.The experimental results demonstrate that this algorithm is feasible and valid and can receive better enhancement results in many situations.