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An efficient non local approach for noise reduction in natural images

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Figure

figure, pixel s2 has similar gray level value but the weight   w(r, s2) = 0
Table 3.2 Comparison of various image at  Poisson Noise (σ=15) Noise Image Normal Method Base Paper
Fig 3.6 Comparison of various image at Poisson Noise (σ=10)

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