Help Needed: Lossless Outpainting Workflow in ComfyUI for Ultrawide Rescale
Tasty_Welcome_665 · reddit · 2026-07-31
A Reddit user encountered difficulties while adjusting image aspect ratios using a locally deployed ComfyUI setup and posted asking for suitable workflows.
The user needs to convert a 4K resolution wallpaper into an ultrawide format for a custom mousepad, but direct scaling crops out characters at the edges. They are looking for a ComfyUI workflow that can either reposition characters to fit the new aspect ratio or automatically perform outpainting to fill the black bars on the sides while maintaining the original high resolution. Since the AI would need to essentially invent complex details like the bottom of a character's legs, the user is unsure how difficult this would be to execute.
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