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Color Suppress

Color Suppress · screenshot coming soon

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What this node does

Color Suppress reduces the presence of specific hues in your footage. You get a slider for each of six colors — red, green, blue, cyan, magenta, yellow — and each one dials how much of that color is suppressed. It’s a more general cousin of Despill: instead of only cleaning a green/blue screen, you can pull down any color cast, and optionally keep overall brightness intact while doing it. Input and output are COMFYTV_VIDEO. It runs as a live fx-preview filter (emits an fx spec and passes through), so results preview without a full render. If all six sliders are 0, it passes the clip through unchanged.

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When to use it

  • A color cast (e.g. a magenta light leak, a too-blue sky) needs to come down.
  • You want to suppress green/blue spill but also clean a second unwanted hue.
  • You need a subtle grade correction targeted at one or two colors.

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Parameters

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red / green / blue / cyan / magenta / yellow

One suppression amount per color. Each ranges 0.0–1.0, default 0.0 (no change). Raise a slider to remove more of that color. Any combination works; leaving all at 0 is a pass-through.

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preserve_luma

When on, keeps each pixel’s brightness constant while suppressing color, so the image doesn’t darken where color is removed. Default off.

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output

image (default) returns the color-corrected footage; matte returns a grayscale matte derived from the suppression.

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Outputs

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Tips

  • Turn on preserve_luma when suppressing a strong color so shapes and detail don’t go muddy.
  • For dedicated green/blue screen fringe, Despill is purpose-built; use Color Suppress when the unwanted color isn’t the screen.
  • To interoperate with native ComfyUI nodes, insert a Bridge. See bridges.md.
  • Despill — dedicated green/blue screen spill removal.
  • Keyer / Select0r — produce mattes from color that Color Suppress can complement.