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Auto White Balance

Auto White Balance · screenshot coming soon

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What this node does

Auto White Balance corrects a clip’s color cast with no controls at all. It uses the classic gray-world algorithm: assume the average color of a scene should be neutral gray, then scale the channels so that holds. Feed in footage that’s too orange, too blue, or off-white and it pulls the whole frame back toward neutral. It takes COMFYTV_VIDEO in and out and renders through ffmpeg’s grayworld filter, so it has a ▶ Run with a live preview on the card. There are no parameters — it always runs the balance when you Run it. To send the corrected clip into native ComfyUI nodes, add a Bridge (see the Bridge guide).

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When to use it

  • Quickly fix a wrong white balance without dialing in a temperature
  • Neutralize a mixed-lighting cast as a starting point
  • Batch-normalize clips before a consistent creative grade

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Parameters

This node has no adjustable parameters — it applies gray-world white balance directly on Run.

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Outputs

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Tips

  • Gray-world assumes the average scene is neutral, so shots dominated by one strong color (a red sunset, a green field) can over-correct — check the result and fall back to Video Color’s manual temperature if it looks off.
  • Use it as a first pass, then do creative grading (temperature, wheels, LUT) on top.
  • Video Color — manual white balance via temperature when gray-world guesses wrong
  • Histogram Equalize — the other automatic one-knob corrector (contrast)
  • CDL Grade — a portable numeric primary grade