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Upscale methods in ComfyUI

Upscaling is a crutial feature when working with generative tools. The range begins with simple upscaling and sharpening specific details. In more advanced methods, the upscaling process can modify the original image in specific directions using prompts and specific LoRas.

simple static upscale method with UPSCALER

The most basic method comes with a simple pixel upscaling with proper upscaling generative models. There is models for specific needs coming from photorealistic to illustrative styles. See the comfyUI Models collection for this.

simple upscale workflow with dedicated ESGAN model

DOWNLOAD WORKFLOW : simple_static_upscale

BASIC UPSCALE / ULTIMATE UPSCALE / FLORENCE-PROMPTBASED UPSCALE

This workflow is a small collection of upscale methods in ComfyUI. They all come with the mindset of preserving the most details from the original image.

upscale methods in ComfyUI

DOWNLOAD WORKFLOW: upscale_2x_demo

ULTIMATE UPSCALER + ControlNet

The ULTIMATE UPSCALER in ComfyUI comes with more advanced features to reinterpret the original image. Althought, it comes quiet handy out of the box, it is preferably good to induct ControNet to the process to keep the consistency.

advanced upscale methods with ULTIMATE UPSCALER

ultimate_upscale_depth