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Video Denoise

Video Denoise · screenshot coming soon

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What this node does

Video Denoise runs one of five ffmpeg denoise/cleanup filters over a COMFYTV_VIDEO clip. A single strength dial is mapped internally to sensible per-filter settings, so you pick a method and push one slider. It processes on ▶ Run and writes a new video snapshot; the source is left alone. In and out are both COMFYTV_VIDEO. To interoperate with native ComfyUI nodes, insert a Bridge — see the bridge guide.

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When to use it

  • Clean up ISO/sensor grain from low-light or high-gain footage.
  • Kill gradient banding in skies or soft backgrounds (use deband or gradfun).
  • Pre-clean footage before sharpening, upscaling, or heavy grading so you don’t amplify noise.

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Parameters

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method

Which denoiser to use. Options: atadenoise (adaptive temporal, default), nlmeans (non-local means, strong but slow), fftdnoiz (frequency-domain), deband (removes banding), gradfun (smooths gradient banding). Default atadenoise.

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strength

Normalized amount, 0.0–1.0, default 0.3. Must be above 0. This one value is remapped per method to the underlying filter parameters (temporal thresholds, non-local sigma, FFT sigma, deband thresholds, or gradfun strength). Start low (~0.3) and raise until noise is gone without smearing detail.

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Outputs

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Tips

  • nlmeans gives the cleanest result but is the slowest; atadenoise is a good, fast default.
  • For banding specifically (skies, gradients) reach for deband or gradfun rather than a general denoiser.
  • Push strength too high and fine detail smears — denoise before you sharpen, not after.
  • Blur / Sharpen — soften or re-sharpen after cleanup.
  • Frame Interpolate — retime after cleaning, so noise isn’t smeared into interpolated frames.