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. Author manuscript; available in PMC: 2009 Nov 27.
Published in final edited form as: IEEE Trans Image Process. 2009 May 27;18(10):2221–2229. doi: 10.1109/TIP.2009.2024064

Fig. 5.

Fig. 5

Results obtained with the SRAD and SBF filters and the proposed filters on real intraoperative brain images. The OBNLM filter efficiently removes the speckle while enhancing the edges and preserving the image structures.