Research on Image Super-Resolution Reconstruction Technology Based on Unsupervised Learning

Table 5

Comparison of objective evaluation indexes of each algorithm in DIV2K dataset.

Index	Algorithm
	Bicubic	EDSR	ESRGAN	Ours
PSNR	21.873	21.482	21.633	25.654
SSIM	0.594	0.562	0.582	0.776