Image processing by a coupled non-linear oscillator system

A new algorithm of image processing based on the appropriate solutions of a spatially discrete non-linear oscillator system is presented. This is based on the onset of pattern formation arising in the FitzHugh-Nagumo system with weak-coupled activation and strong-coupled inhibition. The proposed model offers to extract segment or outline of input signals and to be a high performance as noise that is noise reduction and contrast enhancement by noise. Then we discuss the difference between the discrete system of the coupled nonlinear oscillators and continuous reaction-diffusion system.