Figure 11
Denoising. (a) Noisy patch obtained from adding a Gaussian noise (\(\sigma =100\)) to the same patch from Fig. 10a. (b) Rescaled scores as function of \(\lambda\) for different performance measures: Peak Signal-to-Noise Ratio (PSNR), Structural Similarity Index (SSI) and MSR over the gradient field \(\hbox {MSR}_\nabla\). (c–e) Denoising at optimal regularization parameter \(\lambda ^*\) for PSNR, SSI and \(\hbox {MSR}_\nabla\) respectively.
