Two Layers Format Algorithm of P-M Equation in Image Filtering
Yang Li · Journal of Sichuan University of Science & Engineering · 2014
The image processing based on PDE method is an emerging field developed over the past decade.In recent years,the partial differential equations have achieved extraordinary effect in the characterization of graphics evolution,feature analysis and other aspects,while the problem of low calculation efficiency has appeared in the use of these methods.Therefore,how to massively improve the fast numerical calculation of differential equation involved in image processing becomes an important problem in digital image processing.Based on the classical image processing method of Perona Malik( PM) equation,the two layers finite difference scheme is constructed by combing the explicit and implicit expression to improve the speed of solving.A large number of numerical results show that the two layers constructed is simple and effective.