BM3DSAPCA_couple.tif : PSNR = 32.19  FSIM = 0.9710  SSIM = 0.8761 

NCSR_couple.tif : PSNR = 31.95  FSIM = 0.9675  SSIM = 0.8693 

EPLL_couple.tif : PSNR = 31.83  FSIM = 0.9694  SSIM = 0.8692 

LSSC_couple.tif : PSNR = 32.06  FSIM = 0.9698  SSIM = 0.8739 

couple.tif : PSNR = Inf  FSIM = 1.0000  SSIM = 1.0000 

