From: Image Variational Denoising Using Gradient Fidelity on Curvelet Shrinkage
Noise standard | Noisy image | Curvelet shrinkage method | "TV" Model | "TVGF" Model | Proposed model | |||||
---|---|---|---|---|---|---|---|---|---|---|
deviation | SNR (dB) | MSSIM | SNR (dB) | MSSIM | SNR (dB) | MSSIM | SNR (dB) | MSSIM | SNR (dB) | MSSIM |
20 | 7.59 | 0.34 | 16.62 | 0.86 | 16.76 | 0.85 (1923) | 15.68 | 0.82 (969) | 17.26 | 0.88 (486) |
25 | 5.63 | 0.27 | 15.70 | 0.84 | 15.68 | 0.82 (2290) | 14.75 | 0.77 (1115) | 16.36 | 0.86 (615) |
30 | 4.04 | 0.22 | 14.95 | 0.82 | 14.81 | 0.80 (2991) | 13.79 | 0.71 (1135) | 15.58 | 0.85 (763) |
35 | 2.70 | 0.18 | 14.29 | 0.81 | 13.92 | 0.76 (3000) | 12.88 | 0.67 (1142) | 14.92 | 0.84 (898) |
40 | 1.54 | 0.15 | 13.72 | 0.79 | 12.94 | 0.71 (3000) | 12.01 | 0.61 (1151) | 14.36 | 0.82 (1033) |