(a)
(b)
(c)
(d)
(e)
(f)
Figure 3: (1a) An image with nonperiodic boundary. (1b) 2D DFT of (1a). (1c) DFT of the smooth component, i.e., the removed artifacts from (1a). (1d) Periodic component, i.e., DFT of (1a) with edge artifacts removed. (1e) Reconstructed smooth component. (1f) Reconstructed periodic component.