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I’m working on an amateur project, and for part of my project I’ll be using some old, really, really low-res film. I’ve used some free online tools (like deep-image.ai) to upscale low-res photos before, to great success.

I’m trying to find a similar tool for video, but all the tools I’ve come across are for enterprise or cost caboodle.

Is there any free tool out there for AI image upscaling?

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There's a few options I've seen listed at https://sites.google.com/view/aiupscalingtutorials/ai-upscaling:

1. ESRGAN

  • An open source AI upscaler (super sampler) based on a generative adversarial network architecture.
  • Can be run in CPU mode, but requires a CUDA enabled Nvidia graphics card to get the most out of it.

2. SFTGAN

  • An open source image enhancer that seeks to restore lost texture details from known types, made by the same team who developed ESRGAN.
  • Can be run in CPU mode, but requires a CUDA enabled Nvidia graphics card to get the most out of it.

3. Topaz Gigapixel AI / Video Enhance AI

  • Commercial super sampler that uses artificial intelligence and is made by Topaz Labs. It costs $100, but comes with a 30 day free trial.
  • Produces good results with little fuss. Easy to install, but also requires a CUDA enabled Nvidia graphics card.

4. Sharpen AI

  • Commercial image enhancer that uses artificial intelligence and is made by Topaz Labs. It costs $80, but comes with a 30 day free trial.
  • The algorithm often compliments other super resolution results, effectively sharpening some blurriness and enhancing detail.

5. Nvidia Gameworks

  • Apparently, it works quite well, but it requires a beta access pass which very few people were awarded.

And then I've also read some good reports about the open-source Dandere2x which may be worth checking out.

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    Video2x and Waifu2x-Extension-GUI are also two possible frontends for waifu2x (which isn't halfway bad even for normal video, at least with the photo models). For ESRGAN I would instead recommend checking Upscale Wiki. – mirh Mar 15 at 23:01
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When I browse the video upscaler from the Internet, I found two kinds of video upscaling tools.

  • One is the video upscaling software, such as AVCLabs, Topaz, DVDFab.
  • Another one is an online video upscaler.

Both of them are able to upscale video in 1080p to 4K.

If you have more patience and time to observe the video upscaler, you can try AVCLabs Video Enhancer AI, because I found that it is free currently.

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