Table 3 The average value of various types of indicators achieved by different algorithms on the images of the mural data set
| Â | BI | SRGAN | ESRGAN | Reference [28] | Reference [29] | Reference [30] | Algorithm proposed in this study |
|---|---|---|---|---|---|---|---|
PSNR | 25.58 | 29.24 | 31.76 | 31.02 | 31.99 | 29.06 | 32.53 |
SSIM | 0.697 | 0.751 | 0.774 | 0.791 | 0.796 | 0.764 | 0.816 |
MS-SSIM | 0.706 | 0.749 | 0.777 | 0.782 | 0.812 | 0.773 | 0.805 |
FID | 23.4 | 16.7 | 13.5 | 12.6 | 14.1 | 16.9 | 11.5 |
IS | 14.3 | 17.5 | 21.2 | 20.1 | 19.4 | 18.3 | 20.8 |
NIQE | 11.202 | 7.416 | 4.154 | 5.125 | 5.261 | 5.311 | 3.969 |