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. Author manuscript; available in PMC: 2014 Aug 26.
Published in final edited form as: IEEE Trans Image Process. 2008 Nov;17(11):2089–2101. doi: 10.1109/tip.2008.2004796

Fig. 7.

Fig. 7

Performance comparison of OAGSM/NC against other methods for (a) Lena, (b) Barbara, and (c) Boats images. Plotted points are differences in PSNR between various methods and the OAGSM/NC method. Circles (●) = 3D Collaborative Filtering, Dabov et al. [30], Squares(■) = KSVD, Elad and Aharon [28], Triangles (▲) and Boulanger [29], Stars (★) = Field of Experts, Roth and Black [27].