Table 9 Comparison of different channel scaling factor on LOL.

From: Content-illumination coupling guided low-light image enhancement network

Channel scaling factor\index

PSNR↑

SSIM↑

LPIPS↓

deltaE↓

UQI↑

CICGNet

22.420

0.894

0.073

8.940

0.921

Ratio1

22.156

0.837

0.075

9.054

0.915

Ratio8

21.346

0.832

0.077

10.483

0.908

Ratio16

21.454

0.833

0.075

10.634

0.906

  1. Bold indicates the optimal value.