Fig. 4

Result of degraded images from Catintell-Syn and traditional modeling method. (a) Source HQ fundus images. (b) Synthetic cataract fundus images using traditional method. (c) using CycleGAN. (d) using Catintell-Syn. (e) Real cataract fundus image samples. The images generated by Catintell-Syn are more similar to real cataract fundus images.