Figure 10

Restoration results for low-, middle-, and high-level noise with MR-GND-PCA and MR-PCA: (a) Restoration result for low-level noise with MR-GND-PCA (MSE = 298.77, SNR = 58.04, PSNR = 23.38, SSIM = 0.8452) (b) Restoration result for low-level noise with MR-PCA (MSE = 820.8849, SNR = 53.65, PSNR = 18.99, SSIM = 0.7359), (c) Restoration result for middle-level noise with MR-GND-PCA (MSE = 532.83, SNR = 55.53, PSNR = 20.86, SSIM = 0.7738), (d) Restoration result for middle-level noise with MR-PCA(MSE = 1422.50, SNR = 51.26, PSNR = 16.60, SSIM = 0.6606), (e) Restoration result for high-level noise with MR-GND-PCA (MSE = 985.93, SNR = 52.85, PSNR = 18.19, SSIM = 0.6775), (f) Restoration result for high-level noise with MR-PCA (MSE = 1423.3, SNR = 51.2604, PSNR = 16.60, SSIM = 0.6484).