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Mean Shift versus Fast Restoration.

The Mean Shift competes very well against Fast Restorations, in very noisy situations.
Fast Restorations take less time, and are more effective when we do not want to flatten the images.
    Original image(1024x518). : The Titanic taken from an original picture in a Belgium newspaper, December 1912.
    AOS Perona Fast Restoration(RGB): 4 iterations, tau=5, sigma=1, contrast=1, time=36s, with SSE1 9.28s
    Mean Shift with space sigma=8, range sigma=8, time=109s
    Mean Shift with space sigma=16, range sigma=16, time=443s