LDCT images (Figures 1(b) and 1(d)) processed by FOPMD and RFS-FOPMD with different iteration numbers and the fractional-order . The first column: iteration number is 20; the second column: iteration number is 50 and the third column: iteration number is 100. The first row: Figure 1(b) processed by FOPMD; the second row: Figure 1(b) processed by RFS-FOPMD; the third row: Figure 1(d) processed by FOPMD and the fourth row: Figure 1(d) processed by RFS-FOPMD.
(a) LDCT image (Figure 1(b)) processed by FOPMD in [8] with , , and and iteration number is 20
(b) LDCT image (Figure 1(b)) processed by FOPMD in [8] with , , and and iteration number is 50
(c) LDCT image (Figure 1(b)) processed by FOPMD in [8] with , , and and iteration number is 100
(d) LDCT image (Figure 1(b)) processed by RFS-FOPMD with , , , and and iteration number is 20
(e) LDCT image (Figure 1(b)) processed by RFS-FOPMD with , , , and and iteration number is 50
(f) LDCT image (Figure 1(b)) processed by RFS-FOPMD with , , , and and iteration number is 100
(g) LDCT image (Figure 1(d)) processed by FOPMD in [8] with , , and and iteration number is 20
(h) LDCT image (Figure 1(d)) processed by FOPMD in [8] with , , and and iteration number is 50
(i) LDCT image (Figure 1(d)) processed by FOPMD in [8] with , , and and iteration number is 100
(j) LDCT image (Figure 1(d)) processed by RFS-FOPMD with , , , and and iteration number is 20
(k) LDCT image (Figure 1(d)) processed by RFS-FOPMD with , , , and and iteration number is 50
(l) LDCT image (Figure 1(d)) processed by RFS-FOPMD with , , , and and iteration number is 100