rasttopnm

Convert a Sun rasterfile to a PNM file. More information: https://netpbm.sourceforge.net/doc/rasttopnm.html.

• Convert a RAST image to a PNM file:

rasttopnm path/to/input.rast > path/to/output.pnm

• Use the color map indices in the raster if they are color values:

rasttopnm -index path/to/input.rast > path/to/output.pnm