Fig. 3
An illustration with two graphs labeled a and b showing GMM approximations of Laplacian and multimodal p.d.f.s with underlying GMM components.

(Color online) Original noise distribution and a GMM approximation: (a) Laplacian p.d.f. and its approximation using a four-component GMM; and (b) A multimodal p.d.f. and its three-component GMM approximation.

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