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Table 4 The SSIM of each method for removing scratches

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

  BSCB TV DCT K-SVD NLPB Proposed method
Baboon 0.97895 0.98435 0.98444 0.98474 0.98329 0.98661
Barbara 0.98765 0.99214 0.99129 0.99346 0.99322 0.99467
Cameraman 0.98690 0.99225 0.99234 0.99261 0.99406 0.99367
Couple 0.98716 0.99133 0.99122 0.99370 0.99033 0.99456
House 0.98886 0.99395 0.99322 0.99470 0.99618 0.99667
Lena 0.98833 0.99150 0.98993 0.99328 0.99161 0.99246