BasicSR How to generate photos like x2,x3,x4, is there some ways?

Oct 23 '20 03:10 Williamlizl

https://github.com/xinntao/BasicSR/issues/284#issuecomment-688728978 you need to use Matlab.

Oct 27 '20 08:10 ruby1ring

#284 (comment) you need to use Matlab.

no python scripts?

Nov 03 '20 02:11 Williamlizl

@Williamlizl What is your purpose? Do you just upsample your photos by X2, X3, X4 factors, or other purpose?

Nov 03 '20 17:11 xinntao

@Williamlizl What is your purpose? Do you just upsample your photos by X2, X3, X4 factors, or other purpose? upsample photos by x2,x3,x4 to generate training sample

Nov 04 '20 01:11 Williamlizl

@Williamlizl Usually, we download high-resolution images to generate low-resolution images, then construct the LR-HR training pairs.

For different purpose, you may need different downsampling methods.

Some papers use MATLAB bicubic downsampling for research purpose (for a fair comparison with previous works)
If you want to deal with real-world images, try to use a downsampling method that closer to your real data distribution. (You may also check BlindSR papers)

Nov 11 '20 10:11 xinntao