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cheatsheet-tldr/tldr/pbmmask
2025-04-02 00:19:10 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# pbmmask
> Create a mask bitmap from a regular bitmap.
> See also: `pambackground`.
> More information: <https://netpbm.sourceforge.net/doc/pbmmask.html>.
- Create a mask bitmap separating background from foreground:
`pbmmask {{path/to/image.pbm}} > {{path/to/output.pbm}}`
- Expand the generated mask by one pixel:
`pbmmask {{[-r|-expand]}} {{path/to/image.pbm}} > {{path/to/output.pbm}}`