pnm decoding and encoding
ofshex dumpascii
0000 50 37 0a 57 49 44 54 48 20 32 30 0a 48 45 49 47 48 54 20 31 35 0a 44 45 50 54 48 20 32 0a 4d 41 P7.WIDTH.20.HEIGHT.15.DEPTH.2.MA
0020 58 56 41 4c 20 32 35 35 0a 54 55 50 4c 54 59 50 45 20 52 47 42 5f 41 4c 50 48 41 0a 45 4e 44 48 XVAL.255.TUPLTYPE.RGB_ALPHA.ENDH
0040 44 52 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DR..............................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 0e ff ff 73 00 ff ff 73 00 ff ff 73 00 ff 00 ....................s...s...s...
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0120 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ................................
0140 00 0e ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0160 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 0e ff 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
01a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
01c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 0e ff ff ................................
01e0 00 0e ff ff 73 00 ff 00 00 00 00 ff 73 00 ff 00 00 00 00 fa d2 20 ff fa d2 20 ff 13 8f 3e ff 13 ....s.......s................>..
0200 8f 3e ff 13 8f 3e ff 00 00 00 00 35 58 a0 ff 35 58 a0 ff 88 00 82 ff 88 00 82 ff 00 00 00 00 00 .>...>.....5X..5X...............
0220 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 0e ff 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0240 00 00 00 fa d2 20 ff 00 00 00 00 13 8f 3e ff 00 00 00 00 13 8f 3e ff 00 00 00 00 35 58 a0 ff 00 .............>.......>.....5X...
0260 00 00 00 00 00 00 00 88 00 82 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ................................
0280 00 0e ff 00 00 00 00 00 00 00 00 ff 73 00 ff 00 00 00 00 fa d2 20 ff 00 00 00 00 13 8f 3e ff 00 ............s................>..
02a0 00 00 00 13 8f 3e ff 00 00 00 00 35 58 a0 ff 00 00 00 00 00 00 00 00 88 00 82 ff 00 00 00 00 00 .....>.....5X...................
02c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 0e ff 00 00 00 00 00 00 00 00 ff 73 00 ff 00 ............................s...
02e0 00 00 00 fa d2 20 ff 00 00 00 00 13 8f 3e ff 00 00 00 00 13 8f 3e ff 00 00 00 00 35 58 a0 ff 00 .............>.......>.....5X...
0300 00 00 00 00 00 00 00 88 00 82 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ................................
0320 00 0e ff 00 00 00 00 00 00 00 00 ff 73 00 ff 00 00 00 00 fa d2 20 ff 00 00 00 00 13 8f 3e ff 00 ............s................>..
0340 00 00 00 13 8f 3e ff 00 00 00 00 35 58 a0 ff 35 58 a0 ff 88 00 82 ff 88 00 82 ff 00 00 00 00 00 .....>.....5X..5X...............
0360 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0380 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
03a0 00 00 00 00 00 00 00 88 00 82 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
03c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
03e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 88 00 82 ff 00 00 00 00 00 ................................
0400 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0420 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 35 58 a0 ff 35 ...........................5X..5
0440 58 a0 ff 88 00 82 ff 88 00 82 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 X...............................
0460 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
0480 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
04a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
04c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................................
04e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...................