Table 4. Model performance metrics for real and augmented datasets.

Metric	Real data	Augmented data	Improvement	p-value
RMSE	2.56	2.18	15.2%	<0.01
MAE	1.86	1.49	19.9%	0.003
SSIM	0.82	0.91	11.0%	0.012
KL-Divergence	0.67	0.51	23.9%	0.008