We propose a new measure, the method noise, to evaluate and compare the performance of digital image denoising methods. We first compute and analyze this method noise for a wide class of denoising algorithms, namely the local smoothing filters. Second, we propose a new algorithm, the nonlocal means (NL-means), based on a nonlocal averaging of all pixels in the image. Finally, we present some experiments comparing the NL-means algorithm and the local smoothing filters.


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    Title :

    A non-local algorithm for image denoising


    Contributors:
    Buades, A. (author) / Coll, B. (author) / Morel, J.-M. (author)


    Publication date :

    2005-01-01


    Size :

    295957 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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