310

AI Image Upscaler - upscayl 2.5.5 (github.com)

submitted 11 months ago* (last edited 11 months ago) by birdcat@lemmy.ml to c/opensource@lemmy.ml

21 comments fedilink hide all child comments

Upscayl lets you enlarge and enhance low-resolution images using advanced AI algorithms. Enlarge images without losing quality, it's almost like magic! 🎩🪄 Upscayl is a cross-platform application built with the Linux-first philosophy. This means that Linux users receive pre-release builds earlier but Upscayl itself is available on all major desktop operating systems :)

now look what this baby can do ...

Huh? A sparkly fart in the sky? 🧐

Holy fuck, a Supernova! Cosmic spectacle of incomprehensible dimensions! 🤯

I wanted to implement the pics into the post via

![alt text](image url)

But it was not working for the upscayl version, sorry.

all 22 comments

sorted by: hot top controversial new old

[-] Ado@lemmy.world 37 points 11 months ago

damn, the CSI enhance shit really was real

[-] sik0fewl@kbin.social 20 points 11 months ago

ENHANCE

[-] Durotar@lemmy.ml 8 points 11 months ago* (last edited 11 months ago)

That's not CSI until it can zoom in from Google Earth to my living room!

[-] birdcat@lemmy.ml 19 points 11 months ago* (last edited 11 months ago)

And not that everything is a competition, but in my testing the results of upscayl always look a bit better than the ones from this web based non foss upscaler.

[-] bappity@lemmy.world 12 points 11 months ago

have you tried it against waifu2x ?

[-] yote_zip@pawb.social 22 points 11 months ago* (last edited 11 months ago)

The tool Upscayl uses, RealESRGAN, is superior to waifu2x - waifu2x is really showing its age at this point. waifu2x is good if you want an upscale that basically retains the same level of fidelity while increasing the resolution (i.e., usually it's blurry). Newer upscalers try to clean up the lines and make it look like it's an original copy.

Edit: Just for fun, here's some tests via downscaling a picture then re-upscaling it:

Original Picture

Original Picture (downscaled)

RealESRGAN - Normal Mode

RealESRGAN - Anime Mode

waifu2x

There are also other models available to test with beyond the stock RealESRGAN ones (I'm not sure if Upscayl can use them but they're available for CLI use). I recommend using chaiNNer - e.g. you can use a setup like this

A couple extra models:

UltraMix - Balanced

escale (probably the best for this picture)

[-] bappity@lemmy.world 7 points 11 months ago

just seen your edits, that is some SUPER COOL STUFF! definitely big improvements from waifu2x

[-] yote_zip@pawb.social 7 points 11 months ago

waifu2x technology is the main part that's old I think. There's a lot of NCNN/etc. models to use now to try to tune for different details. My main problem with waifu2x is that it gives you roughly the exact same fidelity as the original picture, i.e. it's only slightly sharper than using a generic zoom function on it. Newer upscalers try to make the image more realistic, as if it was the original in the first place. In a direct comparison with the original I think there's a notable loss of detail in this method (not sure if it's inherent or just based on how the model is tuned), but without the original to compare to I think the images that the newer ones generate look more pleasing/sharp.

[-] bappity@lemmy.world 4 points 11 months ago

nice!

[-] OsrsNeedsF2P@lemmy.ml 9 points 11 months ago

I use Upscayl professionally and can confirm it beats out every proprietary alternative

[-] CletusVanDamme@lemmy.world 2 points 11 months ago

How is it vs. Topaz Gigapixel AI or Photo AI?

[-] azimir@lemmy.ml 6 points 11 months ago

Does it have a backend library for tools to link to? It'd be great to have this in the Image Magick convert tool pipeline.

[-] Aatube@kbin.social 9 points 11 months ago* (last edited 11 months ago)

it's a gui for real-esrgan-ncnn-vulkan

[-] BroBot9000@lemmy.world 4 points 11 months ago

Going to check this out later today. Thanks so much for sharing!

[-] CoffeeDev@lemmy.studio 4 points 11 months ago* (last edited 11 months ago)

I wanted to implement the pics into the post via ![alt text](image url) But it was not working for the upscayl version, sorry.

alt text

I just had to copy the link that the Download original image button pointed to and remove the ?dl=1 from the end, and that gave me this URL which points to the image and can be embedded in the post.