A new class of multichannel image processing filters

|In this paper, a novel lter structure is introduced for multispectral image processing, the vector median-rational hybrid lter's (VMRHF's), which constitute an extension of the nonlinear rational type hybrid lters called medianrational hybrid lter's (MRHF's) recently introduced for 1-D and 2-D signal processing. The VMRHF is a two-stages lter, which exploits in an e ective way the features of the vector median lter (VM) and those of the vector rational operator (VRF). Experimental results show that the new VMRHF outperforms signi cantly widely known nonlinear lters for multispectral image processing such as the vector median lter and the class of the directional distance (DD) lters for all criteria used. KEYWORDS| Color image processing, Vector Rational Filters, Vector Median Filters, Vector Median-Rational Hybrid Filters.