Image SSIM Initial size (µm2) Actual increase (%) Generated increase (%) (a) 0.608 476 10.1 14.5 (b) 0.541 614 10.6 9.9 (c) 0.544 615 10.4 9.4 (d) 0.493 656 13.3 11.6 (e) 0.647 386 22.5 23.8 Mean 0.615 ± 0.086 549.4 ± 113.9 13.4 ± 5.3 13.9 ± 5.9