A 2-D IIR NEURAL HYBRID FILTER FOR IMAGE-PROCESSING

A two-dimensional (2-D) IIR neural hybrid (2DINH) filter is proposed f or image processing. This 2DINH filter consists of the cascade connect ion of a 2-D IIR linear filter followed by a neural filter. The propos ed filter can be applied to smoothing for the images corrupted with Ga ussian noise and/or impulsive noise and to edge detection for the imag es corrupted with Gaussian noise. The parameters of a neural filter ar e adjustable by a learning algorithm to adapt itself to the property o f an image to be processed. Finally, some examples are given to illust rate the utility of the proposed filter.