Fig. 8From: Improved preclassification non local-means (IPNLM) for filtering of grayscale images degraded with additive white Gaussian noiseBoxplot performance comparison of a MAE, b PSNR, c SSIM, and d processing time for the performance between the IPNLM Threshold1,2 algorithm and NL-means-based filters algorithms in the case of degraded images with different noise levels AWGNBack to article page