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Table 4 Comparison of PSNR (dB) of reconstructed image “Penguin” with different number of measurements

From: Clustering K-SVD for sparse representation of images

Methods Patch size 6×6 Patch size 8×8
  m = 9 m = 12 m = 15 m = 18 m = 14 m = 20 m = 26 m = 32
K-SVD 17.85 19.42 20.40 21.16 17.02 19.21 20.27 21.08
Method in [28] 17.53 19.37 20.34 21.12 17.06 19.20 20.21 21.10
Method in [29] 25.45 26.69 27.40 28.02 25.13 26.50 27.22 27.97
CK-SVD 27.48 28.79 29.61 30.34 27.19 28.60 29.65 30.53
SwCK-SVD 27.87 29.22 29.94 30.63 27.63 29.00 29.98 30.86
DCK-SVD 27.60 29.01 29.75 30.42 27.44 28.80 29.72 30.55