A multiresolution approach to color image restoration and parameter estimation using homotopy continuation method
Pradipta Kumar Nanda, K. Sunil Kumar, S. Ghokale, U.B. Desai · Proceedings - International Conference on Image Processing · 2002
We address the problem of color image restoration. We model the image as a Markov random field (MRF) and propose a restoration algorithm in a multiresolution framework. The incorporation of multiresolution technique significantly reduces the computational complexity of the restoration algorithm. The energy function at each resolution being non-convex, is minimized using the simulated annealing algorithm. The parameters which describe the MRF model at each resolution are computed a priori using the homotopy continuation method. Simulation results are presented to validate the proposed scheme.