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Table 6 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 0.99640 0.99771 0.99795 0.99811 0.99746 0.99808
Barbara 0.99700 0.99854 0.99919 0.99935 0.99922 0.99929
Cameraman 0.99588 0.99770 0.99748 0.99826 0.99817 0.99836
Couple 0.99711 0.99854 0.99866 0.99896 0.99813 0.99898
House 0.99695 0.99880 0.99851 0.99900 0.99895 0.99934
Lena 0.99526 0.99762 0.99794 0.99889 0.99841 0.99881