How to make this work on a single image?

[ManuBN786]

Thank you for making such an excellent work public !

Unfortunately I can't use Matlab at work to generate 9 signal level images from BioSR dataset.

So I stacked up a single test image 9 times and then predicted on it.

The attached images are in the order Test_Image--->Denoised--->SR_Image

But the results are very poor.

Can you please give some advise to get excellent results with just a single image