spottopgm

Convert a SPOT satellite image to PGM format. More information: https://netpbm.sourceforge.net/doc/spottopgm.html.

• Convert the specified SPOT image to PGM format:

spottopgm path/to/file.spot > path/to/output.pgm

• Extract the specified color channel:

spottopgm -1|2|3 path/to/file.spot > path/to/output.pgm

• Extract the specified rectangle from the input image:

spottopgm first_col first_row last_col last_row path/to/file.spot > path/to/output.pgm