A Multiplicative Noise Removal Approach Based on Partial Differential Equation Model
Figure 4
Detail of the denoising medical image with different methods. (a) A slice of an MRI brain image; (b) image with Gaussian white noise of mean 0 and variance 0.01, ; (c) denoised with median filter (template: 3 × 3), ; (d) denoised with averaging filter (template: 3 × 3), ; (e) denoised with Wiener filter (template: 5 × 5), ; (f) denoised with TVM (, 10 iterations), ; (g) results with the original fourth-order PDE model, ; (h) denoised (g) with Median filter, ; (i) results with the new fourth-order PDE model, ; (j) denoised (i) with median filter, .