Table 2. Normalized Haralick texture distance between the ROI (as indicated in Figure 7B) of the reference image and that of the reconstructed results.

Tissue type	RED-CNN	CPCE	WGAN	NLnet	AGC-LSRED
Abdomen (ROI I)	0.0058	0.0054	0.0062	0.0046	0.0023†

^†, the best results. ROI, region of interest; RED-CNN, residual encoder-decoder convolutional neural network; CPCE, conveying path-based convolutional encoder-decoder; WGAN, Wasserstein general adversarial network; NLnet, nonlocal network; AGC-LSRED, adaptive global context-based long-short residual encoder-decoder.