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Denoise noisy video with the FFmpeg bm3d filter
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What this guide covers
For editors and hobbyists with a grainy clip who want to try FFmpeg's block-matching denoiser, from a simple single pass to a two-stage setup. They end up with a tuning approach and the option limits. It is based on the manual and filter source and was not run.
More about this guide
Guide ID: art_01M6WJM65Y832XKJBDDEW4YP04
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Guide title
Denoise noisy video with the FFmpeg bm3d filter
Coverage
For editors and hobbyists with a grainy clip who want to try FFmpeg's block-matching denoiser, from a simple single pass to a two-stage setup. They end up with a tuning approach and the option limits. It is based on the manual and filter source and was not run.
Example
A hypothetical, not-run grainy night shot: cut a short segment, try one pass and then the two-stage version, and compare both outputs side by side for leftover grain and lost detail.
Useful starting points
- If the filter rejects your settings, check the patch size: the manual's own examples use a value that is below the minimum in the filter's source.
- Edges or fine texture that look smeared usually mean the denoising strength is too high; lower it and compare again.
- This filter is slow, and smaller sliding steps are slower still, so tune on a short segment before processing the full clip.
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