Table 1 The performance of different denoising algorithms is evaluated based on Entropy, PSNR, SSIM, FSIM, BRISQUE, PIQE and NIQE metrics for MRI1 image.
Method | σ | Entropy | PSNR | SSIM | FSIM | BRISQUE | NIQE | PIQE |
|---|---|---|---|---|---|---|---|---|
Ours | 10 | 6.70 | 34.97 | 0.94 | 0.95 | 43.22 | 5.13 | 56.44 |
20 | 6.69 | 31.79 | 0.90 | 0.92 | 46.04 | 4.78 | 61.16 | |
30 | 6.73 | 29.80 | 0.86 | 0.90 | 44.28 | 4.69 | 56.74 | |
40 | 6.87 | 28.38 | 0.82 | 0.87 | 43.58 | 5.13 | 54.41 | |
OD-CNN | 10 | 6.45 | 32.29 | 0.93 | 0.88 | 43.82 | 5.88 | 60.41 |
20 | 6.08 | 27.97 | 0.88 | 0.87 | 48.14 | 5.42 | 51.24 | |
30 | 6.10 | 26.37 | 0.83 | 0.86 | 47.90 | 5.92 | 43.01 | |
40 | 6.16 | 23.87 | 0.81 | 0.85 | 46.12 | 5.49 | 37.10 | |
NDiff | 10 | 5.78 | 30.76 | 0.89 | 0.88 | 44.38 | 5.22 | 51.83 |
20 | 5.87 | 24.99 | 0.82 | 0.86 | 46.38 | 5.56 | 43.28 | |
30 | 5.86 | 22.67 | 0.83 | 0.89 | 45.24 | 5.44 | 43.59 | |
40 | 5.47 | 26.86 | 0.80 | 0.83 | 47.46 | 5.67 | 69.45 | |
SDPM | 10 | 5.42 | 28.75 | 0.87 | 0.84 | 47.12 | 5.36 | 57.85 |
20 | 5.69 | 25.35 | 0.83 | 0.86 | 49.66 | 4.90 | 74.79 | |
30 | 5.68 | 22.86 | 0.83 | 0.83 | 48.16 | 5.29 | 77.64 | |
40 | 5.98 | 20.31 | 0.82 | 0.81 | 48.46 | 5.38 | 84.50 | |
NGN | 10 | 5.64 | 27.64 | 0.83 | 0.86 | 51.19 | 5.39 | 42.50 |
20 | 5.84 | 25.52 | 0.79 | 0.83 | 55.29 | 5.65 | 59.84 | |
30 | 5.70 | 24.89 | 0.77 | 0.79 | 48.81 | 4.83 | 53.07 | |
40 | 5.96 | 21.94 | 0.79 | 0.79 | 53.70 | 5.84 | 73.97 | |
UDLF | 10 | 5.20 | 26.25 | 0.85 | 0.81 | 50.79 | 5.49 | 24.58 |
20 | 5.42 | 23.21 | 0.80 | 0.78 | 51.56 | 5.67 | 19.98 | |
30 | 5.45 | 21.08 | 0.81 | 0.79 | 52.53 | 5.57 | 19.55 | |
40 | 5.32 | 15.86 | 0.78 | 0.73 | 53.43 | 6.01 | 20.89 | |
CNCL | 10 | 6.04 | 26.39 | 0.80 | 0.83 | 53.63 | 5.93 | 70.09 |
20 | 5.14 | 23.70 | 0.79 | 0.75 | 50.77 | 5.11 | 61.51 | |
30 | 5.24 | 22.27 | 0.76 | 0.77 | 49.31 | 4.92 | 56.82 | |
40 | 5.87 | 17.39 | 0.77 | 0.73 | 54.25 | 6.48 | 39.88 | |
BP-MEC | 10 | 5.69 | 27.04 | 0.79 | 0.82 | 52.67 | 5.83 | 45.29 |
20 | 5.91 | 23.17 | 0.78 | 0.78 | 58.86 | 6.53 | 58.31 | |
30 | 5.97 | 21.21 | 0.77 | 0.77 | 53.18 | 6.07 | 62.54 | |
40 | 5.71 | 16.91 | 0.78 | 0.78 | 53.46 | 5.56 | 77.20 | |
FDCT | 10 | 5.89 | 26.02 | 0.76 | 0.79 | 50.59 | 6.16 | 32.45 |
20 | 5.05 | 22.69 | 0.75 | 0.76 | 54.79 | 5.86 | 31.28 | |
30 | 5.10 | 22.31 | 0.71 | 0.73 | 57.77 | 6.13 | 37.72 | |
40 | 5.14 | 16.13 | 0.70 | 0.76 | 53.85 | 6.60 | 63.32 | |
NSCT-BT | 10 | 5.47 | 25.92 | 0.75 | 0.77 | 51.22 | 6.67 | 33.98 |
20 | 5.23 | 23.18 | 0.73 | 0.75 | 52.89 | 6.87 | 34.67 | |
30 | 5.08 | 22.98 | 0.71 | 0.73 | 53.45 | 6.98 | 35.67 | |
40 | 4.98 | 21.89 | 0.69 | 0.71 | 55.72 | 7.10 | 36.77 | |
IDM-PM | 10 | 5.25 | 24.98 | 0.73 | 0.74 | 52.85 | 6.65 | 36.98 |
20 | 5.12 | 23.88 | 0.71 | 0.73 | 53.16 | 6.78 | 37.45 | |
30 | 4.97 | 22.17 | 0.69 | 0.70 | 54.95 | 6.89 | 37.98 | |
40 | 4.78 | 20.78 | 0.67 | 0.68 | 55.17 | 6.99 | 38.17 | |
DCT-ACO | 10 | 4.61 | 24.93 | 0.71 | 0.77 | 54.73 | 6.68 | 42.56 |
20 | 4.87 | 21.60 | 0.66 | 0.73 | 58.42 | 6.62 | 53.45 | |
30 | 4.82 | 21.73 | 0.69 | 0.76 | 56.32 | 6.56 | 60.74 | |
40 | 4.93 | 15.53 | 0.68 | 0.73 | 53.46 | 6.90 | 79.95 | |
ANLM | 10 | 4.57 | 23.28 | 0.69 | 0.75 | 55.17 | 6.67 | 40.67 |
20 | 4.43 | 22.19 | 0.67 | 0.73 | 55.67 | 6.88 | 42.82 | |
30 | 4.10 | 20.98 | 0.65 | 0.69 | 56.19 | 6.89 | 43.92 | |
40 | 4.56 | 19.83 | 0.63 | 0.67 | 57.14 | 7.06 | 44.77 | |
Z-NLM | 10 | 4.35 | 23.99 | 0.69 | 0.76 | 55.67 | 6.87 | 38.78 |
20 | 4.27 | 22.19 | 0.67 | 0.73 | 57.88 | 6.89 | 39.78 | |
30 | 4.05 | 20.89 | 0.65 | 0.69 | 58.34 | 7.10 | 40.18 | |
40 | 4.02 | 18.28 | 0.63 | 0.66 | 59.11 | 7.23 | 42.66 | |
ONLM | 10 | 4.27 | 22.89 | 0.67 | 0.73 | 56.87 | 6.93 | 39.97 |
20 | 4.10 | 21.29 | 0.65 | 0.69 | 57.89 | 7.04 | 41.29 | |
30 | 3.97 | 19.98 | 0.64 | 0.67 | 58.17 | 7.17 | 42.77 | |
40 | 3.83 | 18.66 | 0.62 | 0.64 | 59.66 | 7.27 | 44.87 |