---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# pbmtopgm

> Convert a PBM image to PGM by averaging areas surrounding individual pixels.
> See also: `pnmconvol`, `pamditherbw`.
> More information: <https://netpbm.sourceforge.net/doc/pbmtopgm.html>.

- Convert PBM image to PGM by averaging the `w`x`h`-sized area surrounding each pixel:

`pbmtopgm {{w}} {{h}} {{path/to/image.pbm}} > {{path/to/output.pgm}}`
