mm-band radar image filtering with texture information preservation

Studies the texture preserving properties for different simple basic filters (of DPF and NSF types) in order to provide a possibility of using one of them in the filtering scheme for texture region processing. These properties have been analyzed both quantitatively and visually. The filters analyzed were the following: the noise suppressing filters (NSFs) - mean, median, and L/sub pq/ filters; the detail preserving filters (DPFs) - the standard sigma filter and the local statistical Lee filter.