ComfyUI Extension: ComfyUI-ColorCorrectGPU

Authored by boobkake22

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Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

A small ComfyUI custom node that mirrors the controls and processing order from Art Venture's node while doing the image math with vectorized PyTorch ops.

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README

ComfyUI Color Correct GPU

A small ComfyUI custom node that mirrors the controls and processing order from Art Venture's ColorCorrect node while doing the image math with vectorized PyTorch ops.

Node

Color Correct GPU

Category: ArtVenture/Post Processing

Inputs match the Art Venture node:

  • image
  • temperature
  • hue
  • brightness
  • contrast
  • saturation
  • gamma

The node ID is ColorCorrectGPU, so it can be installed beside comfyui-art-venture without colliding with its existing ColorCorrect node.

Notes

  • This avoids the upstream CPU path that converts each frame through NumPy, PIL, and OpenCV.
  • The GPU path intentionally keeps the upstream 8-bit quantization steps and PIL/OpenCV-style color math so results stay close to the original node.
  • Neutral saturation and hue settings skip their color-space conversions to avoid unnecessary work and tiny no-op conversion drift.
  • If the incoming ComfyUI IMAGE tensor is on CPU, the node moves it to ComfyUI's torch device when one is available, then returns it to ComfyUI's intermediate device for compatibility.
  • Results should visually match the original node, but may not be byte-identical because PIL/OpenCV and torch can differ slightly in floating-point edge cases.

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

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