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The ESRGAN AI Upscale non-Duke thread

User is offline   MrFlibble 

#271

View PostPhredreeke, on 09 July 2021 - 05:40 PM, said:

Ok, if you prefer a cleaner upscale

Doesn't appear to look much different from an XBR upscale (only blurrier), or an HQ2x upscale.
https://i.imgur.com/ftylOye.png https://i.imgur.com/oR8QlAq.png
Where's the point in using AI upscales then?

View PostPhredreeke, on 09 July 2021 - 05:40 PM, said:

Edit: Took the opportunity to tweak my redithering script. Do you like this better?

I guess the new version is an improvement, but... why not just use ordered dithering and call it a day? At least it'll look consistent.

Also the wheel looks like it was modelled in clay :)
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User is offline   Phredreeke 

#272

Redithering may be a misnomer, it doesn't use any dithering algorithm. It just subtracts one image from another, scales it up 2x then spreads the pixels around.

Anyway here's the steel door again but with a better choice of model (Nickelback + preprocessing with Pixelperfect)
Attached Image: tile0007.png

Here are a few more tiles processed the same way
Attached Image: tile0064.png Attached Image: tile0118.png Attached Image: tile2469.png

I feel I'm onto a winner here
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User is offline   MrFlibble 

#273

While technically not using ESRGAN, these AI transformations of video game image input are really amazing, and I'm reluctant to start up a new topic.

So this guy takes character portraits from Daggerfall and uses a network to render them into photorealistic faces (which do not look exactly like the source material though), then interpolates the result with the original image to get closer to the source material. Example:
https://i.imgur.com/BhZUqVA.png
The third image, arguably looking the best, is a "slight" interpolation of the photorealistic face with the source image.

Here's a video of the process:


This is all still being fine-tuned but the perspectives the technology offers are quite breathtaking.
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User is offline   deus-ex 

#274

Just since today, I can finally use the voting system. So the honour of receiving my first vote falls upon you, MrFlibble. Something to tell your kids and grandkids of. https://forums.duke4.net/public/style_emoticons/default/smile.gif

It took me long enough to reach that 50 post barrier, which I think is set way too high. If such a limit really is necessary, I suggest setting it to 5 or 10 posts at best.
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User is offline   Phredreeke 

#275

It's not too high, you just need to shitpost more
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User is offline   Phredreeke 

#276

A couple of Blood upscales, sorry no comparisons with the original tile or the previous upscale.

https://cdn.discordapp.com/attachments/418522033500979206/867526958174830652/tile0147.png https://cdn.discordapp.com/attachments/418522033500979206/867481176428118057/tile0687.png https://cdn.discordapp.com/attachments/418522033500979206/867527022702886972/tile0572.png

Here is one compared to the previous background upscale pack (left is new)
https://cdn.discordapp.com/attachments/418522033500979206/866839541943631892/tile0232.png

These used a rather complex series of models and scripts, where one very clean upscale (using pixelperfect and nickelback) is overlaid on top of a rather rough redithered upscale (using farthestneighbor and fatalphotos)
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User is offline   Phredreeke 

#277

No step on snek

https://cdn.discordapp.com/attachments/418522033500979206/875784759811407912/snake-rb25edit.gif
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User is offline   Phredreeke 

#278

Shadow was having problems with his dequantising models not blending greys and tans such as in this tile

https://cdn.discordapp.com/attachments/638021595901722663/882901572479234058/105.png

I got the silly idea to use an inpainting model to inpaint all the grey pixels

https://cdn.discordapp.com/attachments/638021595901722663/882905342680375346/tile0105_rlt.png

Honestly, I don't think the result is half bad. Could probably be improved by blending some of the grey back into it.
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User is offline   MrFlibble 

#279

I discovered that the Pixel Perfect model can be used to repair images damaged by dithering. Here's a sample of dragon sprites from Aleona's Tales:

original sprites
https://i.imgur.com/80KyjeH.png
upscaled with 4x_PixelPerfectV4_137000_G.pth
https://i.imgur.com/IaaHBBy.png
downscaled to original size in GIMP and palettised with Image Analyzer
https://i.imgur.com/pb4xaWL.png
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User is offline   Phredreeke 

#280

Yeah, I've been using it for that for a while now (including the first of the Powerslave texture packs I sent you), although it sometimes makes it appear a bit cartoony
1

User is offline   Phredreeke 

#281

I just learned of this site that lets you run GFPGAN in your browser https://huggingface..../akhaliq/GFPGAN

Here is Duki Nuki processed by it

https://cdn.discordapp.com/attachments/309183498756030484/897673792061603850/image0.png

Note that you may need to blur the picture prior to upscaling
1

User is offline   MrFlibble 

#282

View PostPhredreeke, on 12 October 2021 - 06:56 PM, said:

Here is Duki Nuki processed by it

I read "possessed by it".

But image that would undoubtedly have many uses, wouldn't it?
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User is offline   Phredreeke 

#283

Do you ever expect Duki Nuki to look "good"?

Anyway, here's a somewhat better outcome (aside from the weird looking glasses)

https://cdn.discordapp.com/attachments/309183498756030484/897828191614414868/if-heskel2.png
2

User is offline   MusicallyInspired 

  • The Sarien Encounter

#284

Pretty neat stuff. Better than I would have anticipated. For both.
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User is offline   Kralex 

  • Removed

#285

Tried it out with a sprite from Marathon 2 and the results are quite... interesting.

https://i.imgur.com/Ahbmltj.png

This post has been edited by Kralex: 13 October 2021 - 09:45 PM

-1

User is offline   MrFlibble 

#286

View PostPhredreeke, on 13 October 2021 - 04:50 AM, said:

Do you ever expect Duki Nuki to look "good"?

So you keep posting it because you think it's amusing? Surely you're not trying to discredit the entire AI upscale scene by showing mostly bad results?

A while ago I mentioned the results of pixel2style2pixel and StyleGAN applied to Daggerfall portraits and that system appears a bit more versatile than what you're showing here. But no idea how it would handle glasses or a face viewed at an angle.

https://i.imgur.com/BhZUqVA.png
More examples here.

Apparently I was wrong in my previous post about this, the photorealistic transformation was via pixel2style2pixel, not NVIDIA.

This post has been edited by MrFlibble: 13 October 2021 - 11:37 PM

2

User is offline   Kralex 

  • Removed

#287

View PostMrFlibble, on 13 October 2021 - 11:37 PM, said:

So you keep posting it because you think it's amusing? Surely you're not trying to discredit the entire AI upscale scene by showing mostly bad results?



I wouldn't worry about that, Phredreeke has done some phenomenal upscale packs for Build engine games that show just how great the results from this tech can be :)
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User is offline   Phredreeke 

#288

I guess you need to be a Duke4 Discord regular to appreciate Duki Nuki.

GFPGAN can be used by anyone thanks to the site I linked to. BTW don't underestimate the value of mishaps. They can give ideas of how to refine the process.
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