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Table 2 Comparison of PSNR (dB) of reconstructed image “Elephant” with different number of measurements and different patch sizes

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 20.04 21.97 23.16 23.70 19.85 21.83 23.14 23.92
Method in [28] 19.89 21.90 22.82 23.53 19.78 21.66 22.91 23.77
Method in [29] 26.06 26.83 27.24 27.69 25.73 26.80 27.32 27.75
CK-SVD 27.23 27.89 28.38 28.60 26.95 27.74 28.40 28.81
SwCK-SVD 27.65 28.82 28.79 28.97 27.21 28.24 28.70 29.03
DCK-SVD 27.44 27.92 28.51 28.78 27.07 27.93 28.45 28.90