Research Article

An Overview of the Topological Gradient Approach in Image Processing: Advantages and Inconveniences

Figure 4

(a) the initial image, (b) noisy image, (c) the restored image, and (d) edges of the restored image.
761783.fig.004a
(a)
761783.fig.004b
(b)
761783.fig.004c
(c)
761783.fig.004d
(d)