Table 2. Evaluation results of the proposed model and [13], conducted on rendered calibration pattern images.

		Without illumination correction		With illumination correction
		Ours	[13]	Ours	[13]
D-Gauss	PSNR ↑	35.296 ± 3.386	9.407 ± 2.585	36.634 ± 4.329	26.546 ± 4.500
	SSIM ↑	0.979 ± 0.021	0.361 ± 0.251	0.980 ± 0.021	0.829 ± 0.181
	LPIPS ↓	0.146 ± 0.018	0.496 ± 0.301	0.143 ± 0.017	0.095 ± 0.070
Cooke	PSNR ↑	34.754 ± 3.571	8.978 ± 2.392	35.533 ± 4.262	28.101 ± 4.862
	SSIM ↑	0.973 ± 0.035	0.361 ± 0.249	0.973 ± 0.035	0.873 ± 0.174
	LPIPS ↓	0.020 ± 0.028	0.471 ± 0.304	0.020 ± 0.028	0.064 ± 0.064
Tessar	PSNR ↑	26.034 ± 5.018	8.224 ± 2.602	26.281 ± 5.218	27.185 ± 4.661
	SSIM ↑	0.805 ± 0.115	0.365 ± 0.253	0.805 ± 0.115	0.872 ± 0.166
	LPIPS ↓	0.142 ± 0.106	0.455 ± 0.289	0.141 ± 0.106	0.065 ± 0.073