Table 8 Comparison of different number of decomposition and reconstruction.

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

Number of decomposition and reconstruction

Model↓/kb

CPU inference time↓/second

PSNR↑

SSIM↑

LPIPS↓

deltaE↓

UQI↑

1

856

0.304

23.761

0.886

0.177

12.100

0.916

3

2579

0.941

25.123

0.898

0.165

10.260

0.931

5

4333

1.622

25.383

0.901

0.162

9.816

0.936

7

6119

2.432

26.017

0.905

0.159

9.111

0.942

  1. Bold indicates the optimal value.