[magick-users] 16 bits pgm file

[Mathieu Malaterre]

Hello,

  I am having some issue with a 16bits pgm file. Are those steps
supposed to work:


$ wget http://samples.mplayerhq.hu/jpegls/test16.pgm
$ identify test16.pgm
test16.pgm PNM 256x256 PseudoClass 4096c 128kb
$ convert test16.pgm test16.gray
$ convert -depth 16 -size 256x256 test16.gray test16-2.pgm
$ diff test16.pgm test16-2.pgm
Binary files test16.pgm and test16-2.pgm differ
$ md5sum test16.pgm test16-2.pgm
7a4c2d943148520d2f0da1882b2be204  test16.pgm
2da0da03b6eb03a7ecc401c0be70d639  test16-2.pgm
$ identify test16-2.pgm
test16-2.pgm PNM 256x256 PseudoClass 65536c 128kb

Technically I'd like to know what is the command line to produce a
valid 16bits pgm file from a raw grayscale little endian 16bits file.


Thanks for comments


-- 
Mathieu