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RAWTOPGM.MAN
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1991-08-11
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rawtopgm(1) Unix Programmer's Manual rawtopgm(1)
NNNAAAMMMEEE
rawtopgm - convert raw grayscale bytes into a portable graymap
SSSYYYNNNOOOPPPSSSIIISSS
rrraaawwwtttooopppgggmmm [-hhheeeaaadddeeerrrssskkkiiippp _N] [-rrrooowwwssskkkiiippp _N] _w_i_d_t_h _h_e_i_g_h_t [_i_m_a_g_e_d_a_t_a]
DDDEEESSSCCCRRRIIIPPPTTTIIIOOONNN
Reads raw grayscale bytes as input. Produces a portable graymap as
output. The input file is just grayscale bytes. You have to specify the
width and height on the command line, since the program obviously can't
get them from the file. The maxval is assumed to be 255. If the
resulting image is upside down, run it through pppnnnmmmfffllliiippp ---tttbbb ...
OOOPPPTTTIIIOOONNNSSS
---hhheeeaaadddeeerrrssskkkiiippp
If the file has a header, you can use this flag to skip over it.
---rrrooowwwssskkkiiippp
If there is padding at the ends of the rows, you can skip it with
this flag. Note that rowskip can be a real number. Amazingly, I
once had an image with 0.376 bytes of padding per row. This turned
out to be due to a file-transfer problem, but I was still able to
read the image.
SSSEEEEEE AAALLLSSSOOO
pgm(5), rawtoppm(1), pnmflip(1)
AAAUUUTTTHHHOOORRR
Copyright (C) 1989 by Jef Poskanzer.
15 December 89 1