Hello, so I'm working on a skin and for some images I've for some reason forgotten to make a @2x version so I only have an SD version of it. Problem is, its gonna take a long, long while to upscale all of them. Is there someway I can upscale multiple images at once without losing quality so this doesn't hinder my skin creating? Thanks!
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How to Upscale multiple images?
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It's a lot harder to upscale without losing quality than to downscale without losing quality. The most reliably good-looking way would be to do it by hand. It used to be pretty much impossible to automate the process without considerable loss in quality.
That said, in recent years neural networks have been trained to do stuff like this, and they work pretty well, though not always perfectly. The most popular would probably be waifu2x, found here: https://github.com/nagadomi/waifu2x
If you are a Windows user, the version you will want is found here: https://github.com/lltcggie/waifu2x-caffe/releases - Just get the newest waifu2x-caffe.zip
Note: waifu2x uses Nvidia's CUDA cores to process its scaling. I'm pretty sure it will not work if you are running an AMD card.
That said, in recent years neural networks have been trained to do stuff like this, and they work pretty well, though not always perfectly. The most popular would probably be waifu2x, found here: https://github.com/nagadomi/waifu2x
If you are a Windows user, the version you will want is found here: https://github.com/lltcggie/waifu2x-caffe/releases - Just get the newest waifu2x-caffe.zip
Note: waifu2x uses Nvidia's CUDA cores to process its scaling. I'm pretty sure it will not work if you are running an AMD card.
Waifu2x is indeed the best option for upscaling or rather the only one. But tbh, there isnt much point in upscaling, it will not increase the quality most likely, meaning you will be stuck with SD quality on an HD image.Zypre wrote:
Note: waifu2x uses Nvidia's CUDA cores to process its scaling. I'm pretty sure it will not work if you are running an AMD card.
Also, waifu2x supports cuda, but doesnr require it. It can run on CPU only if you only have an AMD card or intel graphics, tho, this will be really slow. There is a version of waifu2x that runs on vulcan, but I never got it to work since its not as easy to use.