Convert a raw RGB stream to a PPM image. More information: https://netpbm.sourceforge.net/doc/rawtoppm.html.
rawtoppm width height path/to/image.raw > path/to/output.ppm
rawtoppm width height path/to/image.raw | pamflip -tb > path/to/output.ppm
rawtoppm width height -headerskip n path/to/image.raw > path/to/output.ppm
rawtoppm width height -rowskip m path/to/image.raw > path/to/output.ppm
rawtoppm width height -rgb|rbg|grb|gbr|brg|bgr path/to/image.raw > path/to/output.ppm