Multispectral Image Denoising Using Optimized Vector NLM Filter.

In this paper, we present a Stein's Unbiased Risk Estimator SURE approach for Non-Local Mean filter to denoise multispectral images. We extend this filter to the vector case in order to take advantage from the additional spectral information brought by the multispectral imaging system. Experimental results show that the proposed optimized vector non-local mean filter OVNLM presented good denoising performance compared to several other approaches.