ComfyUI - High Quality Upscaling with ControlNet Tile - Low VRAM

In this video, we show how you can easily change a character in a photo using ControlNet tile.

This powerful technique allows you to dramatically improve image quality, taking even the most poor-quality photos and turning them into stunning, high-resolution masterpieces.
Unlike other methods, Tile ControlNet is incredibly VRAM-friendly, making it accessible even for users with limited graphics power.

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🌍 SOCIAL 

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#ComfyUI
#Upscaling
#ControlNet

[cXrisp]

Works for me! I was getting seams but they went away after I changed the seam_fix_mode to "Half Tile" on the second upscaler. Thanks for the workflow -- I learned a lot.

[marcoantonionunezcosinga]

I'm happy to find this channel especially because they are for low resource computers ❤

[tncofficial]

I'm really happy to have found your channel. Everything is clear and straightforward. At some point, you might want to consider creating a tutorial that's similar to what Krea AI and Magnific AI offer. That could be really helpful. 😊

[DanStpTech]

Why my image have so much orange after second pass ?

[mikrodizels]

Thanks, the workflow works, and it did a pretty good job upscaling a 512x512 image to a 2048x2048 one.
I have a Nvidia GTX 1060 6gb card, the whole process took around 20 minutes to finish.
I then downloaded the v2_rank256 version of controlnet model and tried upscaling using that in hopes I could make the process way faster by sacrificing some quality, but it took around the same time unfortunately. I used the same exact workflow, the only thing I have different in my workflow is my checkpoint (Juggernaut instead of dreamshaper). ~20 mins does not seem that low vram friendly

[bahethelmy]

Thanks for the video! It just goes forever, I waited for 30 minutes for a single picture of 163kb to upscale and it was still not done, so I cancelled the process.

[vasilybodnar]

Doesnt work for me. An error from UltimateSDUpscale - AttributeError: 'NoneType' object has no attribute 'shape'.

[yngeneer]

thank you for your work, would you mind to showcase inpaint and outpaint. Are there necessary inpaint/outpaint(?) models still? How to properly outpaint in comfy?

[govlrvp]

How many computer specs are required to use this program?