σ=40.80

Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	17.99dB PSNR, 0.577 SSIM	21.31dB PSNR, 0.736 SSIM	21.88dB PSNR, 0.697 SSIM	19.75dB PSNR, 0.662 SSIM	21.48dB PSNR, 0.696 SSIM	22.18dB PSNR, 0.749 SSIM	21.82dB PSNR, 0.723 SSIM	18.46dB PSNR, 0.663 SSIM	19.86dB PSNR, 0.651 SSIM
	18.67dB PSNR, 0.434 SSIM	23.97dB PSNR, 0.699 SSIM	22.71dB PSNR, 0.651 SSIM	22.88dB PSNR, 0.640 SSIM	24.25dB PSNR, 0.663 SSIM	24.68dB PSNR, 0.700 SSIM	23.87dB PSNR, 0.681 SSIM	24.46dB PSNR, 0.673 SSIM	23.60dB PSNR, 0.618 SSIM
	17.37dB PSNR, 0.358 SSIM	24.56dB PSNR, 0.599 SSIM	20.70dB PSNR, 0.589 SSIM	23.15dB PSNR, 0.546 SSIM	21.26dB PSNR, 0.582 SSIM	25.51dB PSNR, 0.596 SSIM	23.93dB PSNR, 0.589 SSIM	20.25dB PSNR, 0.562 SSIM	22.62dB PSNR, 0.586 SSIM
	15.36dB PSNR, 0.451 SSIM	21.03dB PSNR, 0.610 SSIM	22.08dB PSNR, 0.572 SSIM	20.86dB PSNR, 0.566 SSIM	21.97dB PSNR, 0.579 SSIM	22.94dB PSNR, 0.643 SSIM	22.53dB PSNR, 0.610 SSIM	19.74dB PSNR, 0.573 SSIM	22.18dB PSNR, 0.554 SSIM
	17.34dB PSNR, 0.684 SSIM	19.27dB PSNR, 0.798 SSIM	20.00dB PSNR, 0.772 SSIM	18.14dB PSNR, 0.683 SSIM	19.26dB PSNR, 0.730 SSIM	20.22dB PSNR, 0.813 SSIM	19.91dB PSNR, 0.789 SSIM	18.78dB PSNR, 0.729 SSIM	18.81dB PSNR, 0.698 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	15.81dB PSNR, 0.486 SSIM	21.05dB PSNR, 0.625 SSIM	15.78dB PSNR, 0.539 SSIM	21.69dB PSNR, 0.566 SSIM	19.99dB PSNR, 0.588 SSIM	22.99dB PSNR, 0.652 SSIM	22.58dB PSNR, 0.612 SSIM	22.22dB PSNR, 0.574 SSIM	21.17dB PSNR, 0.490 SSIM
	16.49dB PSNR, 0.502 SSIM	22.22dB PSNR, 0.713 SSIM	22.97dB PSNR, 0.698 SSIM	19.09dB PSNR, 0.659 SSIM	22.67dB PSNR, 0.696 SSIM	23.24dB PSNR, 0.743 SSIM	22.88dB PSNR, 0.719 SSIM	21.85dB PSNR, 0.669 SSIM	19.75dB PSNR, 0.641 SSIM
	15.13dB PSNR, 0.678 SSIM	18.85dB PSNR, 0.860 SSIM	19.72dB PSNR, 0.849 SSIM	16.24dB PSNR, 0.711 SSIM	18.60dB PSNR, 0.827 SSIM	19.47dB PSNR, 0.874 SSIM	19.14dB PSNR, 0.861 SSIM	16.74dB PSNR, 0.747 SSIM	15.99dB PSNR, 0.694 SSIM
	17.36dB PSNR, 0.554 SSIM	23.12dB PSNR, 0.800 SSIM	23.90dB PSNR, 0.824 SSIM	22.34dB PSNR, 0.788 SSIM	23.91dB PSNR, 0.819 SSIM	23.89dB PSNR, 0.822 SSIM	23.89dB PSNR, 0.823 SSIM	23.78dB PSNR, 0.830 SSIM	21.51dB PSNR, 0.770 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	17.11dB PSNR, 0.456 SSIM	23.93dB PSNR, 0.708 SSIM	24.17dB PSNR, 0.675 SSIM	23.36dB PSNR, 0.672 SSIM	24.50dB PSNR, 0.694 SSIM	24.67dB PSNR, 0.717 SSIM	24.50dB PSNR, 0.709 SSIM	23.77dB PSNR, 0.697 SSIM	23.99dB PSNR, 0.666 SSIM
	17.51dB PSNR, 0.480 SSIM	23.61dB PSNR, 0.721 SSIM	22.56dB PSNR, 0.688 SSIM	22.95dB PSNR, 0.673 SSIM	23.91dB PSNR, 0.712 SSIM	24.37dB PSNR, 0.730 SSIM	23.94dB PSNR, 0.714 SSIM	23.57dB PSNR, 0.713 SSIM	23.43dB PSNR, 0.666 SSIM
	17.44dB PSNR, 0.498 SSIM	23.33dB PSNR, 0.742 SSIM	24.22dB PSNR, 0.801 SSIM	25.06dB PSNR, 0.811 SSIM	26.06dB PSNR, 0.850 SSIM	25.24dB PSNR, 0.810 SSIM	25.92dB PSNR, 0.839 SSIM	24.53dB PSNR, 0.844 SSIM	25.60dB PSNR, 0.817 SSIM
	13.92dB PSNR, 0.429 SSIM	21.00dB PSNR, 0.605 SSIM	21.99dB PSNR, 0.553 SSIM	18.71dB PSNR, 0.519 SSIM	22.04dB PSNR, 0.555 SSIM	22.75dB PSNR, 0.638 SSIM	21.99dB PSNR, 0.592 SSIM	21.40dB PSNR, 0.550 SSIM	20.84dB PSNR, 0.510 SSIM
	15.36dB PSNR, 0.451 SSIM	21.03dB PSNR, 0.610 SSIM	22.08dB PSNR, 0.572 SSIM	20.07dB PSNR, 0.538 SSIM	21.97dB PSNR, 0.579 SSIM	22.91dB PSNR, 0.640 SSIM	22.53dB PSNR, 0.610 SSIM	20.76dB PSNR, 0.580 SSIM	22.14dB PSNR, 0.574 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	17.17dB PSNR, 0.540 SSIM	22.72dB PSNR, 0.768 SSIM	20.45dB PSNR, 0.786 SSIM	20.05dB PSNR, 0.726 SSIM	23.05dB PSNR, 0.764 SSIM	23.26dB PSNR, 0.775 SSIM	23.09dB PSNR, 0.776 SSIM	19.38dB PSNR, 0.733 SSIM	21.45dB PSNR, 0.712 SSIM
	16.72dB PSNR, 0.566 SSIM	22.03dB PSNR, 0.766 SSIM	20.37dB PSNR, 0.757 SSIM	21.47dB PSNR, 0.735 SSIM	21.79dB PSNR, 0.767 SSIM	22.91dB PSNR, 0.790 SSIM	22.50dB PSNR, 0.776 SSIM	21.89dB PSNR, 0.768 SSIM	21.22dB PSNR, 0.730 SSIM
	16.47dB PSNR, 0.560 SSIM	22.23dB PSNR, 0.766 SSIM	20.84dB PSNR, 0.762 SSIM	21.86dB PSNR, 0.733 SSIM	22.13dB PSNR, 0.771 SSIM	23.14dB PSNR, 0.787 SSIM	22.88dB PSNR, 0.781 SSIM	23.18dB PSNR, 0.778 SSIM	21.56dB PSNR, 0.731 SSIM
	16.50dB PSNR, 0.379 SSIM	24.35dB PSNR, 0.642 SSIM	22.68dB PSNR, 0.665 SSIM	23.60dB PSNR, 0.637 SSIM	23.97dB PSNR, 0.683 SSIM	25.73dB PSNR, 0.686 SSIM	25.50dB PSNR, 0.676 SSIM	25.48dB PSNR, 0.679 SSIM	24.31dB PSNR, 0.636 SSIM
	19.34dB PSNR, 0.475 SSIM	20.60dB PSNR, 0.505 SSIM	21.33dB PSNR, 0.444 SSIM	21.21dB PSNR, 0.387 SSIM	21.19dB PSNR, 0.421 SSIM	20.91dB PSNR, 0.449 SSIM	21.49dB PSNR, 0.450 SSIM	18.56dB PSNR, 0.399 SSIM	22.06dB PSNR, 0.437 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	18.52dB PSNR, 0.450 SSIM	20.61dB PSNR, 0.500 SSIM	20.09dB PSNR, 0.443 SSIM	20.42dB PSNR, 0.388 SSIM	20.09dB PSNR, 0.426 SSIM	20.76dB PSNR, 0.436 SSIM	21.08dB PSNR, 0.440 SSIM	19.82dB PSNR, 0.393 SSIM	21.95dB PSNR, 0.428 SSIM
	18.40dB PSNR, 0.501 SSIM	21.52dB PSNR, 0.586 SSIM	18.03dB PSNR, 0.525 SSIM	19.32dB PSNR, 0.494 SSIM	21.19dB PSNR, 0.531 SSIM	23.19dB PSNR, 0.558 SSIM	20.36dB PSNR, 0.548 SSIM	23.43dB PSNR, 0.540 SSIM	21.32dB PSNR, 0.545 SSIM
	17.63dB PSNR, 0.489 SSIM	22.02dB PSNR, 0.664 SSIM	19.15dB PSNR, 0.500 SSIM	21.77dB PSNR, 0.552 SSIM	22.22dB PSNR, 0.596 SSIM	23.46dB PSNR, 0.662 SSIM	23.19dB PSNR, 0.634 SSIM	22.69dB PSNR, 0.588 SSIM	21.23dB PSNR, 0.455 SSIM
	15.46dB PSNR, 0.523 SSIM	21.10dB PSNR, 0.681 SSIM	21.48dB PSNR, 0.611 SSIM	19.81dB PSNR, 0.648 SSIM	22.73dB PSNR, 0.681 SSIM	23.20dB PSNR, 0.733 SSIM	23.08dB PSNR, 0.717 SSIM	22.15dB PSNR, 0.701 SSIM	21.63dB PSNR, 0.626 SSIM
	17.73dB PSNR, 0.356 SSIM	22.93dB PSNR, 0.520 SSIM	21.90dB PSNR, 0.525 SSIM	24.31dB PSNR, 0.520 SSIM	22.49dB PSNR, 0.548 SSIM	24.64dB PSNR, 0.570 SSIM	22.57dB PSNR, 0.549 SSIM	24.40dB PSNR, 0.540 SSIM	24.06dB PSNR, 0.527 SSIM
	17.98dB PSNR, 0.317 SSIM	23.03dB PSNR, 0.483 SSIM	18.93dB PSNR, 0.448 SSIM	23.84dB PSNR, 0.441 SSIM	21.77dB PSNR, 0.474 SSIM	25.51dB PSNR, 0.499 SSIM	22.86dB PSNR, 0.477 SSIM	22.96dB PSNR, 0.445 SSIM	18.15dB PSNR, 0.451 SSIM
	18.45dB PSNR, 0.362 SSIM	23.31dB PSNR, 0.716 SSIM	23.14dB PSNR, 0.754 SSIM	19.88dB PSNR, 0.668 SSIM	20.89dB PSNR, 0.722 SSIM	25.15dB PSNR, 0.736 SSIM	23.74dB PSNR, 0.720 SSIM	18.73dB PSNR, 0.706 SSIM	21.12dB PSNR, 0.679 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	17.18dB PSNR, 0.637 SSIM	19.21dB PSNR, 0.747 SSIM	19.57dB PSNR, 0.637 SSIM	17.88dB PSNR, 0.602 SSIM	19.01dB PSNR, 0.624 SSIM	19.97dB PSNR, 0.743 SSIM	19.56dB PSNR, 0.692 SSIM	17.66dB PSNR, 0.640 SSIM	18.27dB PSNR, 0.570 SSIM
	17.78dB PSNR, 0.594 SSIM	19.80dB PSNR, 0.667 SSIM	19.64dB PSNR, 0.623 SSIM	19.84dB PSNR, 0.610 SSIM	20.00dB PSNR, 0.598 SSIM	20.91dB PSNR, 0.698 SSIM	20.52dB PSNR, 0.652 SSIM	20.15dB PSNR, 0.654 SSIM	19.07dB PSNR, 0.546 SSIM
	18.80dB PSNR, 0.543 SSIM	20.30dB PSNR, 0.623 SSIM	21.18dB PSNR, 0.598 SSIM	21.61dB PSNR, 0.625 SSIM	21.76dB PSNR, 0.671 SSIM	22.53dB PSNR, 0.688 SSIM	21.71dB PSNR, 0.688 SSIM	21.87dB PSNR, 0.654 SSIM	21.18dB PSNR, 0.583 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	17.68dB PSNR, 0.295 SSIM	24.29dB PSNR, 0.526 SSIM	28.11dB PSNR, 0.701 SSIM	24.82dB PSNR, 0.656 SSIM	27.76dB PSNR, 0.720 SSIM	27.63dB PSNR, 0.718 SSIM	27.55dB PSNR, 0.706 SSIM	26.85dB PSNR, 0.699 SSIM	27.06dB PSNR, 0.680 SSIM
	12.21dB PSNR, 0.190 SSIM	27.06dB PSNR, 0.522 SSIM	17.73dB PSNR, 0.568 SSIM	25.67dB PSNR, 0.525 SSIM	23.12dB PSNR, 0.570 SSIM	29.17dB PSNR, 0.583 SSIM	22.97dB PSNR, 0.566 SSIM	20.69dB PSNR, 0.560 SSIM	23.09dB PSNR, 0.574 SSIM
	18.68dB PSNR, 0.520 SSIM	22.24dB PSNR, 0.669 SSIM	17.75dB PSNR, 0.692 SSIM	21.06dB PSNR, 0.611 SSIM	21.11dB PSNR, 0.700 SSIM	22.68dB PSNR, 0.654 SSIM	22.12dB PSNR, 0.710 SSIM	21.56dB PSNR, 0.652 SSIM	20.49dB PSNR, 0.610 SSIM
	19.06dB PSNR, 0.333 SSIM	24.26dB PSNR, 0.592 SSIM	26.07dB PSNR, 0.607 SSIM	24.44dB PSNR, 0.594 SSIM	25.73dB PSNR, 0.627 SSIM	25.97dB PSNR, 0.647 SSIM	25.71dB PSNR, 0.631 SSIM	25.87dB PSNR, 0.634 SSIM	24.86dB PSNR, 0.601 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	15.02dB PSNR, 0.254 SSIM	24.79dB PSNR, 0.513 SSIM	25.71dB PSNR, 0.622 SSIM	24.82dB PSNR, 0.579 SSIM	26.91dB PSNR, 0.632 SSIM	27.38dB PSNR, 0.656 SSIM	27.27dB PSNR, 0.637 SSIM	26.38dB PSNR, 0.621 SSIM	24.43dB PSNR, 0.597 SSIM
	18.54dB PSNR, 0.294 SSIM	24.34dB PSNR, 0.498 SSIM	25.96dB PSNR, 0.543 SSIM	25.80dB PSNR, 0.531 SSIM	25.82dB PSNR, 0.567 SSIM	26.64dB PSNR, 0.571 SSIM	25.92dB PSNR, 0.571 SSIM	26.30dB PSNR, 0.555 SSIM	21.78dB PSNR, 0.540 SSIM
	15.92dB PSNR, 0.472 SSIM	20.79dB PSNR, 0.595 SSIM	21.82dB PSNR, 0.511 SSIM	19.55dB PSNR, 0.500 SSIM	21.85dB PSNR, 0.504 SSIM	21.73dB PSNR, 0.595 SSIM	22.05dB PSNR, 0.537 SSIM	22.00dB PSNR, 0.520 SSIM	21.48dB PSNR, 0.470 SSIM
	18.25dB PSNR, 0.300 SSIM	23.99dB PSNR, 0.492 SSIM	22.23dB PSNR, 0.503 SSIM	24.37dB PSNR, 0.475 SSIM	23.64dB PSNR, 0.507 SSIM	25.86dB PSNR, 0.550 SSIM	23.93dB PSNR, 0.519 SSIM	23.12dB PSNR, 0.490 SSIM	25.29dB PSNR, 0.507 SSIM
	17.21dB PSNR, 0.425 SSIM	21.63dB PSNR, 0.534 SSIM	22.33dB PSNR, 0.421 SSIM	22.62dB PSNR, 0.463 SSIM	23.05dB PSNR, 0.471 SSIM	23.39dB PSNR, 0.536 SSIM	23.16dB PSNR, 0.500 SSIM	23.07dB PSNR, 0.480 SSIM	21.89dB PSNR, 0.428 SSIM
	19.56dB PSNR, 0.367 SSIM	22.87dB PSNR, 0.514 SSIM	23.09dB PSNR, 0.477 SSIM	22.84dB PSNR, 0.503 SSIM	24.47dB PSNR, 0.531 SSIM	24.71dB PSNR, 0.558 SSIM	24.37dB PSNR, 0.541 SSIM	21.64dB PSNR, 0.507 SSIM	21.00dB PSNR, 0.478 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	18.99dB PSNR, 0.496 SSIM	21.11dB PSNR, 0.579 SSIM	21.23dB PSNR, 0.481 SSIM	20.98dB PSNR, 0.491 SSIM	21.25dB PSNR, 0.472 SSIM	22.16dB PSNR, 0.579 SSIM	21.64dB PSNR, 0.523 SSIM	21.59dB PSNR, 0.519 SSIM	19.87dB PSNR, 0.446 SSIM
	19.10dB PSNR, 0.364 SSIM	23.44dB PSNR, 0.542 SSIM	22.99dB PSNR, 0.576 SSIM	23.93dB PSNR, 0.586 SSIM	24.45dB PSNR, 0.603 SSIM	25.39dB PSNR, 0.618 SSIM	24.18dB PSNR, 0.611 SSIM	24.48dB PSNR, 0.616 SSIM	21.43dB PSNR, 0.565 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	19.55dB PSNR, 0.379 SSIM	23.53dB PSNR, 0.568 SSIM	25.40dB PSNR, 0.587 SSIM	24.44dB PSNR, 0.574 SSIM	25.08dB PSNR, 0.600 SSIM	25.54dB PSNR, 0.633 SSIM	25.21dB PSNR, 0.606 SSIM	24.11dB PSNR, 0.593 SSIM	24.85dB PSNR, 0.578 SSIM
	15.79dB PSNR, 0.645 SSIM	19.22dB PSNR, 0.730 SSIM	18.98dB PSNR, 0.577 SSIM	17.05dB PSNR, 0.557 SSIM	18.70dB PSNR, 0.565 SSIM	19.80dB PSNR, 0.714 SSIM	19.33dB PSNR, 0.650 SSIM	18.33dB PSNR, 0.596 SSIM	17.51dB PSNR, 0.484 SSIM
	17.82dB PSNR, 0.598 SSIM	21.03dB PSNR, 0.746 SSIM	21.73dB PSNR, 0.703 SSIM	20.16dB PSNR, 0.664 SSIM	20.93dB PSNR, 0.685 SSIM	21.74dB PSNR, 0.750 SSIM	21.31dB PSNR, 0.724 SSIM	18.64dB PSNR, 0.660 SSIM	19.94dB PSNR, 0.651 SSIM
	16.12dB PSNR, 0.358 SSIM	21.49dB PSNR, 0.558 SSIM	14.49dB PSNR, 0.637 SSIM	15.35dB PSNR, 0.579 SSIM	13.32dB PSNR, 0.607 SSIM	15.65dB PSNR, 0.638 SSIM	16.88dB PSNR, 0.636 SSIM	16.30dB PSNR, 0.611 SSIM	14.12dB PSNR, 0.573 SSIM
	18.73dB PSNR, 0.399 SSIM	24.25dB PSNR, 0.673 SSIM	22.89dB PSNR, 0.685 SSIM	23.51dB PSNR, 0.679 SSIM	25.55dB PSNR, 0.717 SSIM	25.72dB PSNR, 0.716 SSIM	25.76dB PSNR, 0.720 SSIM	25.56dB PSNR, 0.718 SSIM	22.64dB PSNR, 0.658 SSIM
	18.33dB PSNR, 0.680 SSIM	18.11dB PSNR, 0.641 SSIM	20.41dB PSNR, 0.850 SSIM	20.96dB PSNR, 0.822 SSIM	23.30dB PSNR, 0.938 SSIM	21.74dB PSNR, 0.860 SSIM	22.39dB PSNR, 0.925 SSIM	21.27dB PSNR, 0.874 SSIM	21.85dB PSNR, 0.867 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	19.03dB PSNR, 0.527 SSIM	20.59dB PSNR, 0.610 SSIM	21.33dB PSNR, 0.494 SSIM	20.60dB PSNR, 0.499 SSIM	18.17dB PSNR, 0.494 SSIM	21.91dB PSNR, 0.567 SSIM	21.61dB PSNR, 0.531 SSIM	19.60dB PSNR, 0.481 SSIM	20.00dB PSNR, 0.445 SSIM
	18.96dB PSNR, 0.548 SSIM	20.49dB PSNR, 0.636 SSIM	17.60dB PSNR, 0.453 SSIM	18.96dB PSNR, 0.478 SSIM	20.36dB PSNR, 0.490 SSIM	21.60dB PSNR, 0.598 SSIM	20.63dB PSNR, 0.542 SSIM	19.05dB PSNR, 0.502 SSIM	19.89dB PSNR, 0.455 SSIM
	13.98dB PSNR, 0.453 SSIM	20.41dB PSNR, 0.567 SSIM	18.54dB PSNR, 0.456 SSIM	19.17dB PSNR, 0.551 SSIM	21.96dB PSNR, 0.573 SSIM	22.32dB PSNR, 0.593 SSIM	22.28dB PSNR, 0.599 SSIM	20.41dB PSNR, 0.589 SSIM	20.70dB PSNR, 0.497 SSIM

Images classified as non-NST

σ=30.60

Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	19.63dB PSNR, 0.677 SSIM	22.71dB PSNR, 0.793 SSIM	23.15dB PSNR, 0.767 SSIM	21.49dB PSNR, 0.735 SSIM	23.00dB PSNR, 0.774 SSIM	23.46dB PSNR, 0.810 SSIM	23.15dB PSNR, 0.786 SSIM	22.16dB PSNR, 0.775 SSIM	21.77dB PSNR, 0.729 SSIM
	19.82dB PSNR, 0.537 SSIM	25.05dB PSNR, 0.750 SSIM	24.25dB PSNR, 0.729 SSIM	24.63dB PSNR, 0.718 SSIM	25.44dB PSNR, 0.740 SSIM	25.90dB PSNR, 0.767 SSIM	25.65dB PSNR, 0.747 SSIM	25.26dB PSNR, 0.728 SSIM	25.15dB PSNR, 0.704 SSIM
	18.91dB PSNR, 0.446 SSIM	25.23dB PSNR, 0.650 SSIM	21.05dB PSNR, 0.629 SSIM	21.19dB PSNR, 0.603 SSIM	21.83dB PSNR, 0.632 SSIM	26.40dB PSNR, 0.653 SSIM	24.90dB PSNR, 0.644 SSIM	23.19dB PSNR, 0.620 SSIM	26.19dB PSNR, 0.621 SSIM
	15.59dB PSNR, 0.534 SSIM	22.92dB PSNR, 0.699 SSIM	23.41dB PSNR, 0.662 SSIM	20.77dB PSNR, 0.634 SSIM	23.12dB PSNR, 0.675 SSIM	23.99dB PSNR, 0.732 SSIM	23.65dB PSNR, 0.694 SSIM	22.71dB PSNR, 0.671 SSIM	22.89dB PSNR, 0.641 SSIM
	18.68dB PSNR, 0.764 SSIM	21.13dB PSNR, 0.856 SSIM	21.73dB PSNR, 0.854 SSIM	19.10dB PSNR, 0.753 SSIM	21.23dB PSNR, 0.839 SSIM	21.75dB PSNR, 0.875 SSIM	21.50dB PSNR, 0.860 SSIM	17.11dB PSNR, 0.759 SSIM	20.03dB PSNR, 0.784 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	18.65dB PSNR, 0.591 SSIM	23.12dB PSNR, 0.722 SSIM	16.72dB PSNR, 0.643 SSIM	23.15dB PSNR, 0.670 SSIM	21.93dB PSNR, 0.688 SSIM	24.27dB PSNR, 0.742 SSIM	23.50dB PSNR, 0.709 SSIM	19.34dB PSNR, 0.664 SSIM	23.06dB PSNR, 0.632 SSIM
	17.81dB PSNR, 0.599 SSIM	23.62dB PSNR, 0.772 SSIM	24.08dB PSNR, 0.773 SSIM	21.54dB PSNR, 0.735 SSIM	24.17dB PSNR, 0.779 SSIM	24.58dB PSNR, 0.809 SSIM	24.21dB PSNR, 0.786 SSIM	23.95dB PSNR, 0.779 SSIM	23.43dB PSNR, 0.756 SSIM
	16.36dB PSNR, 0.761 SSIM	20.42dB PSNR, 0.896 SSIM	21.41dB PSNR, 0.903 SSIM	17.35dB PSNR, 0.780 SSIM	20.61dB PSNR, 0.899 SSIM	21.09dB PSNR, 0.916 SSIM	20.81dB PSNR, 0.907 SSIM	18.27dB PSNR, 0.827 SSIM	18.03dB PSNR, 0.808 SSIM
	18.75dB PSNR, 0.657 SSIM	24.62dB PSNR, 0.847 SSIM	25.34dB PSNR, 0.877 SSIM	24.20dB PSNR, 0.837 SSIM	25.44dB PSNR, 0.871 SSIM	25.43dB PSNR, 0.870 SSIM	25.44dB PSNR, 0.869 SSIM	24.05dB PSNR, 0.843 SSIM	24.12dB PSNR, 0.833 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	16.47dB PSNR, 0.547 SSIM	25.32dB PSNR, 0.761 SSIM	24.94dB PSNR, 0.738 SSIM	24.85dB PSNR, 0.735 SSIM	25.78dB PSNR, 0.759 SSIM	25.90dB PSNR, 0.773 SSIM	25.70dB PSNR, 0.762 SSIM	25.60dB PSNR, 0.762 SSIM	24.95dB PSNR, 0.723 SSIM
	18.50dB PSNR, 0.578 SSIM	24.72dB PSNR, 0.769 SSIM	23.12dB PSNR, 0.753 SSIM	23.91dB PSNR, 0.737 SSIM	24.96dB PSNR, 0.777 SSIM	25.47dB PSNR, 0.786 SSIM	25.15dB PSNR, 0.774 SSIM	24.20dB PSNR, 0.771 SSIM	23.74dB PSNR, 0.734 SSIM
	18.49dB PSNR, 0.595 SSIM	24.81dB PSNR, 0.797 SSIM	25.27dB PSNR, 0.846 SSIM	25.16dB PSNR, 0.845 SSIM	26.88dB PSNR, 0.875 SSIM	26.55dB PSNR, 0.849 SSIM	27.03dB PSNR, 0.869 SSIM	26.73dB PSNR, 0.867 SSIM	26.71dB PSNR, 0.850 SSIM
	16.23dB PSNR, 0.536 SSIM	22.92dB PSNR, 0.696 SSIM	22.89dB PSNR, 0.640 SSIM	18.30dB PSNR, 0.588 SSIM	23.26dB PSNR, 0.652 SSIM	23.96dB PSNR, 0.719 SSIM	23.52dB PSNR, 0.676 SSIM	23.43dB PSNR, 0.671 SSIM	22.95dB PSNR, 0.622 SSIM
	15.59dB PSNR, 0.534 SSIM	22.92dB PSNR, 0.699 SSIM	23.41dB PSNR, 0.662 SSIM	20.22dB PSNR, 0.633 SSIM	23.12dB PSNR, 0.675 SSIM	24.12dB PSNR, 0.726 SSIM	23.65dB PSNR, 0.694 SSIM	21.26dB PSNR, 0.652 SSIM	20.86dB PSNR, 0.631 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	18.35dB PSNR, 0.640 SSIM	24.05dB PSNR, 0.816 SSIM	21.23dB PSNR, 0.824 SSIM	22.13dB PSNR, 0.776 SSIM	24.05dB PSNR, 0.817 SSIM	24.49dB PSNR, 0.824 SSIM	24.25dB PSNR, 0.819 SSIM	21.38dB PSNR, 0.799 SSIM	21.59dB PSNR, 0.780 SSIM
	18.70dB PSNR, 0.676 SSIM	23.49dB PSNR, 0.819 SSIM	20.86dB PSNR, 0.793 SSIM	22.76dB PSNR, 0.790 SSIM	23.41dB PSNR, 0.819 SSIM	24.15dB PSNR, 0.834 SSIM	23.81dB PSNR, 0.825 SSIM	22.27dB PSNR, 0.815 SSIM	22.29dB PSNR, 0.794 SSIM
	18.90dB PSNR, 0.661 SSIM	23.63dB PSNR, 0.814 SSIM	20.90dB PSNR, 0.792 SSIM	23.30dB PSNR, 0.791 SSIM	23.69dB PSNR, 0.822 SSIM	24.35dB PSNR, 0.829 SSIM	24.12dB PSNR, 0.826 SSIM	23.94dB PSNR, 0.819 SSIM	23.10dB PSNR, 0.799 SSIM
	17.02dB PSNR, 0.456 SSIM	25.48dB PSNR, 0.702 SSIM	23.38dB PSNR, 0.719 SSIM	25.95dB PSNR, 0.698 SSIM	26.32dB PSNR, 0.734 SSIM	26.83dB PSNR, 0.738 SSIM	26.68dB PSNR, 0.734 SSIM	26.03dB PSNR, 0.730 SSIM	26.15dB PSNR, 0.701 SSIM
	20.70dB PSNR, 0.575 SSIM	22.37dB PSNR, 0.599 SSIM	21.91dB PSNR, 0.507 SSIM	21.38dB PSNR, 0.447 SSIM	21.30dB PSNR, 0.489 SSIM	21.09dB PSNR, 0.542 SSIM	21.50dB PSNR, 0.499 SSIM	20.55dB PSNR, 0.471 SSIM	21.35dB PSNR, 0.492 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.92dB PSNR, 0.569 SSIM	22.32dB PSNR, 0.592 SSIM	20.17dB PSNR, 0.512 SSIM	21.66dB PSNR, 0.434 SSIM	20.22dB PSNR, 0.489 SSIM	22.23dB PSNR, 0.543 SSIM	21.89dB PSNR, 0.494 SSIM	21.46dB PSNR, 0.492 SSIM	20.73dB PSNR, 0.485 SSIM
	19.63dB PSNR, 0.599 SSIM	22.92dB PSNR, 0.660 SSIM	19.62dB PSNR, 0.564 SSIM	19.86dB PSNR, 0.547 SSIM	21.97dB PSNR, 0.564 SSIM	24.15dB PSNR, 0.613 SSIM	23.02dB PSNR, 0.585 SSIM	20.84dB PSNR, 0.584 SSIM	22.61dB PSNR, 0.589 SSIM
	15.93dB PSNR, 0.619 SSIM	23.23dB PSNR, 0.772 SSIM	23.40dB PSNR, 0.716 SSIM	19.29dB PSNR, 0.754 SSIM	24.36dB PSNR, 0.779 SSIM	24.56dB PSNR, 0.806 SSIM	24.52dB PSNR, 0.798 SSIM	23.83dB PSNR, 0.782 SSIM	19.60dB PSNR, 0.707 SSIM
	19.19dB PSNR, 0.443 SSIM	24.79dB PSNR, 0.613 SSIM	23.29dB PSNR, 0.583 SSIM	24.76dB PSNR, 0.584 SSIM	24.46dB PSNR, 0.610 SSIM	25.49dB PSNR, 0.628 SSIM	23.48dB PSNR, 0.607 SSIM	24.07dB PSNR, 0.605 SSIM	25.08dB PSNR, 0.592 SSIM
	17.60dB PSNR, 0.389 SSIM	24.44dB PSNR, 0.566 SSIM	19.48dB PSNR, 0.508 SSIM	25.23dB PSNR, 0.519 SSIM	22.78dB PSNR, 0.551 SSIM	26.18dB PSNR, 0.583 SSIM	22.41dB PSNR, 0.549 SSIM	23.57dB PSNR, 0.521 SSIM	19.96dB PSNR, 0.519 SSIM
	18.97dB PSNR, 0.450 SSIM	24.67dB PSNR, 0.763 SSIM	25.08dB PSNR, 0.810 SSIM	24.68dB PSNR, 0.744 SSIM	25.33dB PSNR, 0.787 SSIM	26.35dB PSNR, 0.793 SSIM	22.50dB PSNR, 0.776 SSIM	25.31dB PSNR, 0.786 SSIM	21.98dB PSNR, 0.738 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	15.25dB PSNR, 0.482 SSIM	26.16dB PSNR, 0.730 SSIM	24.70dB PSNR, 0.772 SSIM	25.63dB PSNR, 0.740 SSIM	27.82dB PSNR, 0.781 SSIM	27.99dB PSNR, 0.789 SSIM	27.14dB PSNR, 0.780 SSIM	27.54dB PSNR, 0.777 SSIM	27.27dB PSNR, 0.753 SSIM
	19.26dB PSNR, 0.746 SSIM	21.05dB PSNR, 0.817 SSIM	20.54dB PSNR, 0.723 SSIM	19.38dB PSNR, 0.694 SSIM	20.56dB PSNR, 0.750 SSIM	21.38dB PSNR, 0.825 SSIM	21.04dB PSNR, 0.792 SSIM	18.76dB PSNR, 0.733 SSIM	19.58dB PSNR, 0.674 SSIM
	18.84dB PSNR, 0.687 SSIM	21.15dB PSNR, 0.742 SSIM	21.46dB PSNR, 0.724 SSIM	20.98dB PSNR, 0.718 SSIM	21.62dB PSNR, 0.724 SSIM	22.39dB PSNR, 0.793 SSIM	21.94dB PSNR, 0.751 SSIM	21.43dB PSNR, 0.732 SSIM	20.23dB PSNR, 0.643 SSIM
	20.11dB PSNR, 0.640 SSIM	22.00dB PSNR, 0.703 SSIM	21.75dB PSNR, 0.711 SSIM	20.71dB PSNR, 0.705 SSIM	23.34dB PSNR, 0.751 SSIM	23.92dB PSNR, 0.778 SSIM	23.60dB PSNR, 0.758 SSIM	22.55dB PSNR, 0.755 SSIM	21.13dB PSNR, 0.662 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	16.52dB PSNR, 0.316 SSIM	26.79dB PSNR, 0.621 SSIM	28.31dB PSNR, 0.723 SSIM	23.89dB PSNR, 0.636 SSIM	28.34dB PSNR, 0.737 SSIM	28.59dB PSNR, 0.756 SSIM	28.26dB PSNR, 0.733 SSIM	27.97dB PSNR, 0.722 SSIM	25.60dB PSNR, 0.675 SSIM
	19.02dB PSNR, 0.362 SSIM	26.95dB PSNR, 0.654 SSIM	29.02dB PSNR, 0.740 SSIM	26.93dB PSNR, 0.714 SSIM	28.85dB PSNR, 0.763 SSIM	28.77dB PSNR, 0.766 SSIM	28.53dB PSNR, 0.751 SSIM	28.47dB PSNR, 0.752 SSIM	28.36dB PSNR, 0.732 SSIM
	13.59dB PSNR, 0.227 SSIM	27.38dB PSNR, 0.536 SSIM	17.62dB PSNR, 0.576 SSIM	28.33dB PSNR, 0.549 SSIM	21.75dB PSNR, 0.583 SSIM	29.81dB PSNR, 0.605 SSIM	20.79dB PSNR, 0.583 SSIM	24.72dB PSNR, 0.570 SSIM	21.35dB PSNR, 0.595 SSIM
	19.23dB PSNR, 0.625 SSIM	23.34dB PSNR, 0.743 SSIM	19.03dB PSNR, 0.763 SSIM	22.39dB PSNR, 0.698 SSIM	22.44dB PSNR, 0.783 SSIM	23.80dB PSNR, 0.744 SSIM	23.43dB PSNR, 0.784 SSIM	21.74dB PSNR, 0.740 SSIM	23.28dB PSNR, 0.690 SSIM
	20.42dB PSNR, 0.431 SSIM	25.78dB PSNR, 0.668 SSIM	27.14dB PSNR, 0.666 SSIM	25.41dB PSNR, 0.675 SSIM	26.94dB PSNR, 0.698 SSIM	27.13dB PSNR, 0.716 SSIM	26.62dB PSNR, 0.705 SSIM	26.94dB PSNR, 0.694 SSIM	26.41dB PSNR, 0.662 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	19.98dB PSNR, 0.372 SSIM	24.59dB PSNR, 0.522 SSIM	27.42dB PSNR, 0.576 SSIM	26.68dB PSNR, 0.584 SSIM	27.30dB PSNR, 0.609 SSIM	27.46dB PSNR, 0.618 SSIM	27.29dB PSNR, 0.608 SSIM	21.77dB PSNR, 0.586 SSIM	26.52dB PSNR, 0.595 SSIM
	19.03dB PSNR, 0.588 SSIM	22.71dB PSNR, 0.690 SSIM	21.90dB PSNR, 0.586 SSIM	21.67dB PSNR, 0.591 SSIM	22.90dB PSNR, 0.608 SSIM	23.63dB PSNR, 0.691 SSIM	23.05dB PSNR, 0.629 SSIM	23.02dB PSNR, 0.622 SSIM	22.67dB PSNR, 0.565 SSIM
	20.36dB PSNR, 0.368 SSIM	25.22dB PSNR, 0.565 SSIM	22.69dB PSNR, 0.543 SSIM	21.87dB PSNR, 0.534 SSIM	24.35dB PSNR, 0.560 SSIM	26.64dB PSNR, 0.600 SSIM	25.80dB PSNR, 0.568 SSIM	24.68dB PSNR, 0.563 SSIM	25.65dB PSNR, 0.563 SSIM
	19.66dB PSNR, 0.527 SSIM	23.44dB PSNR, 0.633 SSIM	23.29dB PSNR, 0.510 SSIM	23.54dB PSNR, 0.570 SSIM	24.03dB PSNR, 0.576 SSIM	24.52dB PSNR, 0.650 SSIM	24.24dB PSNR, 0.606 SSIM	24.21dB PSNR, 0.600 SSIM	23.36dB PSNR, 0.506 SSIM
	20.31dB PSNR, 0.458 SSIM	24.52dB PSNR, 0.602 SSIM	25.11dB PSNR, 0.543 SSIM	23.71dB PSNR, 0.576 SSIM	25.45dB PSNR, 0.616 SSIM	25.88dB PSNR, 0.640 SSIM	25.53dB PSNR, 0.623 SSIM	22.05dB PSNR, 0.583 SSIM	24.91dB PSNR, 0.542 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.39dB PSNR, 0.593 SSIM	22.69dB PSNR, 0.659 SSIM	22.58dB PSNR, 0.573 SSIM	22.02dB PSNR, 0.584 SSIM	22.42dB PSNR, 0.588 SSIM	23.47dB PSNR, 0.697 SSIM	22.87dB PSNR, 0.624 SSIM	19.02dB PSNR, 0.610 SSIM	22.01dB PSNR, 0.524 SSIM
	19.66dB PSNR, 0.431 SSIM	25.11dB PSNR, 0.626 SSIM	22.91dB PSNR, 0.630 SSIM	25.10dB PSNR, 0.652 SSIM	25.19dB PSNR, 0.675 SSIM	25.33dB PSNR, 0.695 SSIM	23.46dB PSNR, 0.677 SSIM	21.83dB PSNR, 0.670 SSIM	23.27dB PSNR, 0.642 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.53dB PSNR, 0.450 SSIM	25.02dB PSNR, 0.644 SSIM	26.33dB PSNR, 0.640 SSIM	25.25dB PSNR, 0.641 SSIM	26.19dB PSNR, 0.660 SSIM	26.54dB PSNR, 0.693 SSIM	26.17dB PSNR, 0.671 SSIM	24.26dB PSNR, 0.655 SSIM	25.74dB PSNR, 0.632 SSIM
	16.67dB PSNR, 0.731 SSIM	20.94dB PSNR, 0.797 SSIM	20.09dB PSNR, 0.690 SSIM	18.10dB PSNR, 0.663 SSIM	20.28dB PSNR, 0.710 SSIM	21.33dB PSNR, 0.807 SSIM	20.79dB PSNR, 0.760 SSIM	15.39dB PSNR, 0.685 SSIM	18.30dB PSNR, 0.637 SSIM
	19.12dB PSNR, 0.689 SSIM	22.41dB PSNR, 0.802 SSIM	23.00dB PSNR, 0.772 SSIM	21.37dB PSNR, 0.735 SSIM	22.38dB PSNR, 0.769 SSIM	23.02dB PSNR, 0.815 SSIM	22.61dB PSNR, 0.791 SSIM	20.59dB PSNR, 0.745 SSIM	20.50dB PSNR, 0.725 SSIM
	17.49dB PSNR, 0.366 SSIM	25.14dB PSNR, 0.560 SSIM	22.22dB PSNR, 0.524 SSIM	23.14dB PSNR, 0.540 SSIM	23.94dB PSNR, 0.572 SSIM	27.00dB PSNR, 0.608 SSIM	26.28dB PSNR, 0.582 SSIM	24.06dB PSNR, 0.558 SSIM	25.34dB PSNR, 0.559 SSIM
	19.41dB PSNR, 0.541 SSIM	23.01dB PSNR, 0.646 SSIM	22.89dB PSNR, 0.552 SSIM	21.28dB PSNR, 0.564 SSIM	23.49dB PSNR, 0.592 SSIM	24.24dB PSNR, 0.673 SSIM	23.77dB PSNR, 0.620 SSIM	21.83dB PSNR, 0.601 SSIM	21.24dB PSNR, 0.549 SSIM
	14.10dB PSNR, 0.425 SSIM	19.70dB PSNR, 0.632 SSIM	15.80dB PSNR, 0.710 SSIM	14.83dB PSNR, 0.653 SSIM	15.40dB PSNR, 0.697 SSIM	18.72dB PSNR, 0.731 SSIM	15.40dB PSNR, 0.694 SSIM	16.36dB PSNR, 0.700 SSIM	13.65dB PSNR, 0.655 SSIM
	20.20dB PSNR, 0.490 SSIM	25.26dB PSNR, 0.719 SSIM	24.74dB PSNR, 0.745 SSIM	25.10dB PSNR, 0.735 SSIM	27.02dB PSNR, 0.772 SSIM	27.07dB PSNR, 0.782 SSIM	26.90dB PSNR, 0.769 SSIM	24.24dB PSNR, 0.765 SSIM	21.99dB PSNR, 0.701 SSIM
	18.98dB PSNR, 0.755 SSIM	18.68dB PSNR, 0.654 SSIM	22.29dB PSNR, 0.919 SSIM	22.20dB PSNR, 0.865 SSIM	25.60dB PSNR, 0.956 SSIM	23.24dB PSNR, 0.902 SSIM	25.52dB PSNR, 0.944 SSIM	20.91dB PSNR, 0.885 SSIM	22.48dB PSNR, 0.904 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.78dB PSNR, 0.629 SSIM	21.90dB PSNR, 0.690 SSIM	20.92dB PSNR, 0.570 SSIM	22.03dB PSNR, 0.590 SSIM	19.87dB PSNR, 0.598 SSIM	23.10dB PSNR, 0.685 SSIM	22.59dB PSNR, 0.620 SSIM	21.81dB PSNR, 0.617 SSIM	21.21dB PSNR, 0.537 SSIM
	20.60dB PSNR, 0.651 SSIM	21.80dB PSNR, 0.714 SSIM	18.57dB PSNR, 0.554 SSIM	19.94dB PSNR, 0.594 SSIM	21.56dB PSNR, 0.611 SSIM	22.84dB PSNR, 0.709 SSIM	22.36dB PSNR, 0.647 SSIM	21.59dB PSNR, 0.631 SSIM	21.24dB PSNR, 0.560 SSIM
	16.82dB PSNR, 0.774 SSIM	20.81dB PSNR, 0.899 SSIM	22.00dB PSNR, 0.907 SSIM	17.71dB PSNR, 0.791 SSIM	21.29dB PSNR, 0.906 SSIM	21.56dB PSNR, 0.918 SSIM	21.41dB PSNR, 0.912 SSIM	18.21dB PSNR, 0.827 SSIM	18.00dB PSNR, 0.799 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	18.06dB PSNR, 0.637 SSIM	21.82dB PSNR, 0.740 SSIM	22.26dB PSNR, 0.719 SSIM	19.49dB PSNR, 0.672 SSIM	22.22dB PSNR, 0.738 SSIM	23.07dB PSNR, 0.791 SSIM	22.57dB PSNR, 0.764 SSIM	20.27dB PSNR, 0.703 SSIM	20.56dB PSNR, 0.677 SSIM
	16.30dB PSNR, 0.558 SSIM	21.69dB PSNR, 0.650 SSIM	19.14dB PSNR, 0.568 SSIM	21.46dB PSNR, 0.665 SSIM	22.99dB PSNR, 0.673 SSIM	23.80dB PSNR, 0.715 SSIM	23.34dB PSNR, 0.693 SSIM	23.73dB PSNR, 0.710 SSIM	22.40dB PSNR, 0.580 SSIM
	14.47dB PSNR, 0.481 SSIM	24.64dB PSNR, 0.765 SSIM	24.92dB PSNR, 0.812 SSIM	18.89dB PSNR, 0.676 SSIM	25.63dB PSNR, 0.814 SSIM	25.96dB PSNR, 0.822 SSIM	25.38dB PSNR, 0.815 SSIM	20.16dB PSNR, 0.711 SSIM	21.78dB PSNR, 0.711 SSIM

Images classified as non-NST

σ=20.40

Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	22.18dB PSNR, 0.800 SSIM	24.90dB PSNR, 0.864 SSIM	25.09dB PSNR, 0.849 SSIM	23.49dB PSNR, 0.817 SSIM	25.22dB PSNR, 0.862 SSIM	25.47dB PSNR, 0.879 SSIM	25.17dB PSNR, 0.863 SSIM	24.75dB PSNR, 0.853 SSIM	23.66dB PSNR, 0.825 SSIM
	22.53dB PSNR, 0.682 SSIM	27.26dB PSNR, 0.833 SSIM	26.42dB PSNR, 0.825 SSIM	26.77dB PSNR, 0.809 SSIM	27.70dB PSNR, 0.833 SSIM	27.96dB PSNR, 0.853 SSIM	27.57dB PSNR, 0.841 SSIM	27.62dB PSNR, 0.836 SSIM	26.06dB PSNR, 0.794 SSIM
	21.44dB PSNR, 0.598 SSIM	25.28dB PSNR, 0.743 SSIM	22.20dB PSNR, 0.703 SSIM	25.26dB PSNR, 0.699 SSIM	24.28dB PSNR, 0.721 SSIM	26.35dB PSNR, 0.755 SSIM	25.19dB PSNR, 0.733 SSIM	20.92dB PSNR, 0.682 SSIM	25.72dB PSNR, 0.690 SSIM
	18.57dB PSNR, 0.682 SSIM	25.13dB PSNR, 0.796 SSIM	25.14dB PSNR, 0.776 SSIM	21.38dB PSNR, 0.742 SSIM	25.25dB PSNR, 0.791 SSIM	25.96dB PSNR, 0.820 SSIM	25.56dB PSNR, 0.795 SSIM	23.14dB PSNR, 0.760 SSIM	22.06dB PSNR, 0.739 SSIM
	21.66dB PSNR, 0.880 SSIM	23.56dB PSNR, 0.918 SSIM	24.35dB PSNR, 0.924 SSIM	21.35dB PSNR, 0.857 SSIM	24.04dB PSNR, 0.924 SSIM	24.10dB PSNR, 0.929 SSIM	24.04dB PSNR, 0.925 SSIM	22.88dB PSNR, 0.904 SSIM	21.35dB PSNR, 0.847 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	21.34dB PSNR, 0.733 SSIM	25.37dB PSNR, 0.817 SSIM	22.54dB PSNR, 0.765 SSIM	24.93dB PSNR, 0.780 SSIM	24.99dB PSNR, 0.805 SSIM	26.22dB PSNR, 0.836 SSIM	25.66dB PSNR, 0.812 SSIM	22.93dB PSNR, 0.803 SSIM	24.40dB PSNR, 0.765 SSIM
	21.77dB PSNR, 0.746 SSIM	25.77dB PSNR, 0.848 SSIM	26.12dB PSNR, 0.861 SSIM	24.89dB PSNR, 0.830 SSIM	26.37dB PSNR, 0.864 SSIM	26.65dB PSNR, 0.881 SSIM	26.30dB PSNR, 0.864 SSIM	26.28dB PSNR, 0.865 SSIM	25.06dB PSNR, 0.832 SSIM
	19.05dB PSNR, 0.878 SSIM	23.02dB PSNR, 0.945 SSIM	23.03dB PSNR, 0.941 SSIM	18.97dB PSNR, 0.860 SSIM	23.42dB PSNR, 0.950 SSIM	23.62dB PSNR, 0.954 SSIM	23.47dB PSNR, 0.952 SSIM	19.40dB PSNR, 0.887 SSIM	19.13dB PSNR, 0.852 SSIM
	20.60dB PSNR, 0.782 SSIM	26.74dB PSNR, 0.898 SSIM	27.07dB PSNR, 0.922 SSIM	24.75dB PSNR, 0.897 SSIM	27.27dB PSNR, 0.916 SSIM	27.38dB PSNR, 0.914 SSIM	27.36dB PSNR, 0.913 SSIM	26.84dB PSNR, 0.915 SSIM	25.15dB PSNR, 0.887 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.38dB PSNR, 0.691 SSIM	27.03dB PSNR, 0.826 SSIM	25.99dB PSNR, 0.815 SSIM	26.36dB PSNR, 0.809 SSIM	27.50dB PSNR, 0.833 SSIM	26.98dB PSNR, 0.839 SSIM	27.24dB PSNR, 0.830 SSIM	27.31dB PSNR, 0.828 SSIM	24.01dB PSNR, 0.801 SSIM
	21.66dB PSNR, 0.720 SSIM	26.79dB PSNR, 0.842 SSIM	24.38dB PSNR, 0.825 SSIM	25.64dB PSNR, 0.814 SSIM	26.44dB PSNR, 0.845 SSIM	27.15dB PSNR, 0.850 SSIM	26.95dB PSNR, 0.846 SSIM	26.50dB PSNR, 0.842 SSIM	26.35dB PSNR, 0.813 SSIM
	20.97dB PSNR, 0.731 SSIM	26.90dB PSNR, 0.857 SSIM	26.69dB PSNR, 0.890 SSIM	24.57dB PSNR, 0.876 SSIM	27.98dB PSNR, 0.901 SSIM	27.20dB PSNR, 0.889 SSIM	28.30dB PSNR, 0.896 SSIM	28.10dB PSNR, 0.896 SSIM	28.18dB PSNR, 0.886 SSIM
	18.63dB PSNR, 0.680 SSIM	25.05dB PSNR, 0.793 SSIM	24.80dB PSNR, 0.758 SSIM	22.30dB PSNR, 0.739 SSIM	25.34dB PSNR, 0.777 SSIM	25.90dB PSNR, 0.818 SSIM	25.31dB PSNR, 0.791 SSIM	25.49dB PSNR, 0.787 SSIM	24.39dB PSNR, 0.752 SSIM
	18.57dB PSNR, 0.682 SSIM	25.13dB PSNR, 0.796 SSIM	25.14dB PSNR, 0.776 SSIM	22.03dB PSNR, 0.746 SSIM	25.25dB PSNR, 0.791 SSIM	26.01dB PSNR, 0.822 SSIM	25.56dB PSNR, 0.795 SSIM	22.20dB PSNR, 0.754 SSIM	24.03dB PSNR, 0.742 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	20.42dB PSNR, 0.772 SSIM	25.06dB PSNR, 0.872 SSIM	22.61dB PSNR, 0.873 SSIM	21.58dB PSNR, 0.832 SSIM	24.92dB PSNR, 0.877 SSIM	25.99dB PSNR, 0.878 SSIM	25.06dB PSNR, 0.877 SSIM	24.40dB PSNR, 0.849 SSIM	21.93dB PSNR, 0.833 SSIM
	21.24dB PSNR, 0.796 SSIM	25.54dB PSNR, 0.873 SSIM	21.83dB PSNR, 0.839 SSIM	24.40dB PSNR, 0.847 SSIM	25.58dB PSNR, 0.875 SSIM	25.36dB PSNR, 0.882 SSIM	25.41dB PSNR, 0.876 SSIM	25.39dB PSNR, 0.876 SSIM	24.06dB PSNR, 0.847 SSIM
	20.62dB PSNR, 0.782 SSIM	25.74dB PSNR, 0.873 SSIM	21.33dB PSNR, 0.828 SSIM	25.16dB PSNR, 0.851 SSIM	25.96dB PSNR, 0.877 SSIM	26.23dB PSNR, 0.880 SSIM	25.23dB PSNR, 0.874 SSIM	25.38dB PSNR, 0.875 SSIM	25.01dB PSNR, 0.852 SSIM
	19.74dB PSNR, 0.606 SSIM	27.82dB PSNR, 0.784 SSIM	25.46dB PSNR, 0.782 SSIM	27.46dB PSNR, 0.761 SSIM	28.07dB PSNR, 0.798 SSIM	28.48dB PSNR, 0.801 SSIM	28.05dB PSNR, 0.795 SSIM	28.13dB PSNR, 0.795 SSIM	27.79dB PSNR, 0.770 SSIM
	23.07dB PSNR, 0.725 SSIM	23.86dB PSNR, 0.724 SSIM	22.81dB PSNR, 0.631 SSIM	21.95dB PSNR, 0.573 SSIM	23.34dB PSNR, 0.636 SSIM	24.15dB PSNR, 0.719 SSIM	23.38dB PSNR, 0.652 SSIM	23.78dB PSNR, 0.638 SSIM	22.93dB PSNR, 0.591 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	21.98dB PSNR, 0.715 SSIM	23.46dB PSNR, 0.724 SSIM	21.65dB PSNR, 0.642 SSIM	22.91dB PSNR, 0.564 SSIM	21.25dB PSNR, 0.626 SSIM	23.54dB PSNR, 0.726 SSIM	22.77dB PSNR, 0.680 SSIM	17.21dB PSNR, 0.609 SSIM	21.04dB PSNR, 0.568 SSIM
	19.65dB PSNR, 0.762 SSIM	25.47dB PSNR, 0.851 SSIM	26.47dB PSNR, 0.833 SSIM	23.85dB PSNR, 0.845 SSIM	26.65dB PSNR, 0.871 SSIM	26.19dB PSNR, 0.878 SSIM	26.61dB PSNR, 0.873 SSIM	23.05dB PSNR, 0.856 SSIM	21.49dB PSNR, 0.822 SSIM
	19.59dB PSNR, 0.577 SSIM	26.15dB PSNR, 0.708 SSIM	24.73dB PSNR, 0.671 SSIM	25.76dB PSNR, 0.673 SSIM	26.51dB PSNR, 0.690 SSIM	27.40dB PSNR, 0.727 SSIM	26.25dB PSNR, 0.704 SSIM	26.26dB PSNR, 0.693 SSIM	24.21dB PSNR, 0.659 SSIM
	22.27dB PSNR, 0.553 SSIM	26.54dB PSNR, 0.685 SSIM	22.36dB PSNR, 0.611 SSIM	24.13dB PSNR, 0.637 SSIM	24.38dB PSNR, 0.666 SSIM	27.91dB PSNR, 0.700 SSIM	23.75dB PSNR, 0.662 SSIM	25.59dB PSNR, 0.649 SSIM	21.73dB PSNR, 0.610 SSIM
	20.70dB PSNR, 0.589 SSIM	26.62dB PSNR, 0.831 SSIM	26.27dB PSNR, 0.869 SSIM	24.51dB PSNR, 0.816 SSIM	28.85dB PSNR, 0.855 SSIM	27.32dB PSNR, 0.858 SSIM	26.41dB PSNR, 0.845 SSIM	17.06dB PSNR, 0.783 SSIM	28.42dB PSNR, 0.830 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	21.77dB PSNR, 0.862 SSIM	23.44dB PSNR, 0.894 SSIM	22.48dB PSNR, 0.840 SSIM	21.53dB PSNR, 0.817 SSIM	23.35dB PSNR, 0.881 SSIM	23.68dB PSNR, 0.900 SSIM	23.46dB PSNR, 0.889 SSIM	21.52dB PSNR, 0.860 SSIM	20.77dB PSNR, 0.777 SSIM
	20.97dB PSNR, 0.798 SSIM	23.32dB PSNR, 0.822 SSIM	24.58dB PSNR, 0.839 SSIM	22.41dB PSNR, 0.816 SSIM	24.29dB PSNR, 0.852 SSIM	24.64dB PSNR, 0.877 SSIM	24.35dB PSNR, 0.858 SSIM	19.69dB PSNR, 0.812 SSIM	22.63dB PSNR, 0.802 SSIM
	22.77dB PSNR, 0.775 SSIM	24.07dB PSNR, 0.801 SSIM	23.52dB PSNR, 0.832 SSIM	24.94dB PSNR, 0.820 SSIM	25.77dB PSNR, 0.843 SSIM	26.00dB PSNR, 0.861 SSIM	25.73dB PSNR, 0.846 SSIM	25.81dB PSNR, 0.847 SSIM	25.49dB PSNR, 0.826 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	22.71dB PSNR, 0.765 SSIM	25.20dB PSNR, 0.829 SSIM	22.75dB PSNR, 0.844 SSIM	24.13dB PSNR, 0.807 SSIM	24.59dB PSNR, 0.864 SSIM	25.72dB PSNR, 0.847 SSIM	25.09dB PSNR, 0.860 SSIM	24.89dB PSNR, 0.815 SSIM	24.61dB PSNR, 0.802 SSIM
	22.09dB PSNR, 0.572 SSIM	27.44dB PSNR, 0.747 SSIM	28.88dB PSNR, 0.757 SSIM	28.04dB PSNR, 0.769 SSIM	28.76dB PSNR, 0.790 SSIM	28.89dB PSNR, 0.804 SSIM	28.71dB PSNR, 0.786 SSIM	27.36dB PSNR, 0.788 SSIM	27.57dB PSNR, 0.746 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	21.60dB PSNR, 0.733 SSIM	24.86dB PSNR, 0.794 SSIM	23.90dB PSNR, 0.720 SSIM	22.24dB PSNR, 0.726 SSIM	24.82dB PSNR, 0.755 SSIM	25.25dB PSNR, 0.807 SSIM	24.68dB PSNR, 0.767 SSIM	24.10dB PSNR, 0.755 SSIM	24.37dB PSNR, 0.707 SSIM
	23.09dB PSNR, 0.530 SSIM	26.45dB PSNR, 0.649 SSIM	24.98dB PSNR, 0.622 SSIM	25.46dB PSNR, 0.630 SSIM	26.26dB PSNR, 0.650 SSIM	28.00dB PSNR, 0.692 SSIM	27.03dB PSNR, 0.665 SSIM	25.14dB PSNR, 0.632 SSIM	27.18dB PSNR, 0.625 SSIM
	23.37dB PSNR, 0.597 SSIM	26.03dB PSNR, 0.695 SSIM	27.08dB PSNR, 0.650 SSIM	26.51dB PSNR, 0.690 SSIM	27.22dB PSNR, 0.727 SSIM	27.54dB PSNR, 0.751 SSIM	27.08dB PSNR, 0.723 SSIM	25.47dB PSNR, 0.723 SSIM	25.31dB PSNR, 0.664 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	21.99dB PSNR, 0.729 SSIM	24.55dB PSNR, 0.757 SSIM	24.44dB PSNR, 0.709 SSIM	23.36dB PSNR, 0.724 SSIM	24.70dB PSNR, 0.750 SSIM	25.35dB PSNR, 0.809 SSIM	24.91dB PSNR, 0.770 SSIM	24.36dB PSNR, 0.767 SSIM	23.48dB PSNR, 0.689 SSIM
	23.12dB PSNR, 0.590 SSIM	27.02dB PSNR, 0.740 SSIM	27.66dB PSNR, 0.721 SSIM	26.57dB PSNR, 0.722 SSIM	27.88dB PSNR, 0.746 SSIM	28.26dB PSNR, 0.785 SSIM	27.84dB PSNR, 0.749 SSIM	27.76dB PSNR, 0.762 SSIM	26.71dB PSNR, 0.705 SSIM
	20.08dB PSNR, 0.846 SSIM	23.38dB PSNR, 0.882 SSIM	22.17dB PSNR, 0.827 SSIM	19.28dB PSNR, 0.789 SSIM	23.18dB PSNR, 0.865 SSIM	23.64dB PSNR, 0.891 SSIM	23.37dB PSNR, 0.876 SSIM	19.42dB PSNR, 0.866 SSIM	19.57dB PSNR, 0.755 SSIM
	21.43dB PSNR, 0.805 SSIM	24.63dB PSNR, 0.872 SSIM	24.99dB PSNR, 0.847 SSIM	22.91dB PSNR, 0.818 SSIM	24.67dB PSNR, 0.862 SSIM	24.99dB PSNR, 0.882 SSIM	24.74dB PSNR, 0.868 SSIM	22.85dB PSNR, 0.831 SSIM	23.27dB PSNR, 0.819 SSIM
	18.23dB PSNR, 0.598 SSIM	23.64dB PSNR, 0.758 SSIM	20.98dB PSNR, 0.812 SSIM	17.24dB PSNR, 0.754 SSIM	21.44dB PSNR, 0.817 SSIM	23.95dB PSNR, 0.828 SSIM	20.09dB PSNR, 0.807 SSIM	24.41dB PSNR, 0.807 SSIM	16.44dB PSNR, 0.762 SSIM
	22.62dB PSNR, 0.632 SSIM	27.48dB PSNR, 0.802 SSIM	28.72dB PSNR, 0.819 SSIM	27.08dB PSNR, 0.817 SSIM	28.89dB PSNR, 0.839 SSIM	28.93dB PSNR, 0.848 SSIM	28.67dB PSNR, 0.836 SSIM	28.62dB PSNR, 0.835 SSIM	27.33dB PSNR, 0.801 SSIM
	21.50dB PSNR, 0.867 SSIM	19.11dB PSNR, 0.690 SSIM	25.44dB PSNR, 0.961 SSIM	23.47dB PSNR, 0.917 SSIM	28.28dB PSNR, 0.972 SSIM	25.50dB PSNR, 0.941 SSIM	27.15dB PSNR, 0.965 SSIM	23.86dB PSNR, 0.937 SSIM	23.45dB PSNR, 0.926 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	23.25dB PSNR, 0.767 SSIM	24.61dB PSNR, 0.802 SSIM	23.32dB PSNR, 0.686 SSIM	22.31dB PSNR, 0.713 SSIM	24.12dB PSNR, 0.752 SSIM	24.95dB PSNR, 0.806 SSIM	24.47dB PSNR, 0.755 SSIM	23.98dB PSNR, 0.751 SSIM	23.42dB PSNR, 0.671 SSIM
	23.07dB PSNR, 0.783 SSIM	24.43dB PSNR, 0.817 SSIM	21.19dB PSNR, 0.710 SSIM	22.25dB PSNR, 0.702 SSIM	24.12dB PSNR, 0.772 SSIM	24.87dB PSNR, 0.829 SSIM	23.67dB PSNR, 0.792 SSIM	23.80dB PSNR, 0.765 SSIM	22.63dB PSNR, 0.692 SSIM
	19.03dB PSNR, 0.868 SSIM	22.82dB PSNR, 0.933 SSIM	23.77dB PSNR, 0.945 SSIM	18.75dB PSNR, 0.845 SSIM	24.00dB PSNR, 0.952 SSIM	23.96dB PSNR, 0.953 SSIM	23.99dB PSNR, 0.953 SSIM	19.86dB PSNR, 0.884 SSIM	19.24dB PSNR, 0.851 SSIM
Original	Noisy	Proposed method [1]	NLM [2]	Curvelet [3]	BM3D [4]	EPLL [5]	Patch BM3D	DIDD [6]	FOV-NL [7]
	19.16dB PSNR, 0.705 SSIM	24.12dB PSNR, 0.762 SSIM	21.87dB PSNR, 0.746 SSIM	24.14dB PSNR, 0.764 SSIM	25.57dB PSNR, 0.805 SSIM	25.91dB PSNR, 0.827 SSIM	25.58dB PSNR, 0.804 SSIM	25.47dB PSNR, 0.814 SSIM	24.14dB PSNR, 0.721 SSIM
	16.42dB PSNR, 0.598 SSIM	27.17dB PSNR, 0.848 SSIM	27.63dB PSNR, 0.883 SSIM	20.20dB PSNR, 0.754 SSIM	28.19dB PSNR, 0.881 SSIM	28.15dB PSNR, 0.885 SSIM	27.97dB PSNR, 0.878 SSIM	25.78dB PSNR, 0.839 SSIM	22.97dB PSNR, 0.790 SSIM

Images classified as non-NST

Parameter-adjusted BM3D comparison results (σ=30.6)