Abstract：Based on traditional filters and omnidirectional multiple structuring elements, a class of effective image detail preserving filters——omnidirectional multistage combination filters——are proposed in this paper. In the design stage of these filters, different filter units can be chosen automatically in accordance with different image regions, so that all kinds of filter units can be used effectively. A standard test image is filtered in noisy environment. The results of simulation show that the new filter performs better in noise suppressing and detail preserving.
1 Visa Koivun en.A Robust Nonlinear Filter for Image Restoration.IEEE Trans on Image Processing,1995,4(5) 2 赵继印,陈贺新等.全方位二维多级中值滤波器.仪器仪表学报,1993,14(1) 3 Nieminen Dekk a Heinonen,Yrjo Neavo.A New Class of Detail-preserving Filters for Image Processing.IEEE Trans on Pattern Analys is and Machine Intelligence,1987,PAMI-9(1)
