ppminfo
ppminfo shows details of an ppm-file on the console. It seems this is the only utility missing from netpbm.
Download
Screendump
folkert@belle:~/Personal/src/ppminfo$ jpegtopnm ~/Pictures/friends.jpg | ppminfo -vv
Resolution: 4288x2848
Maximum value: 255
Format: 20534
min avg max stddev
red: 2 126 255 52
green: 0 95 255 45
blue: 0 81 255 46
|
