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Table 1 The PSNR of each method for removing text coverage (Unit: dB)

From: Image restoration based on sparse representation using feature classification learning

  BSCB TV DCT K-SVD NLPB Proposed method
Baboon 43.17 44.30 44.57 44.89 43.81 44.76
Barbara 45.92 47.14 47.34 48.25 47.39 48.17
Cameraman 45.34 46.91 45.72 45.59 46.87 45.63
Couple 45.12 46.71 46.67 46.53 46.33 46.71
House 45.59 48.30 47.43 49.21 49.76 50.11
Lena 44.76 46.17 46.91 47.13 46.44 47.19