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Text File  |  1995-07-26  |  2.1 KB  |  67 lines
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  4.      ffffssssttttooooppppggggmmmm((((1111))))        XXXXEEEENNNNIIIIXXXX SSSSyyyysssstttteeeemmmm VVVV ((((00006666 AAAApppprrrriiiillll 88889999))))         ffffssssttttooooppppggggmmmm((((1111))))
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  8.      NNNNAAAAMMMMEEEE
  9.           fstopgm - convert a Usenix FaceSaver(tm) file into a
  10.           portable graymap
  11.  
  12.      SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
  13.           ffffssssttttooooppppggggmmmm [_f_s_f_i_l_e]
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  15.      DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  16.           Reads a Usenix FaceSaver(tm) file as input.  Produces a
  17.           portable graymap as output.
  18.  
  19.           FaceSaver(tm) files sometimes have rectangular pixels.
  20.           While _f_s_t_o_p_g_m won't re-scale them into square pixels for
  21.           you, it will give you the precise _p_n_m_s_c_a_l_e command that will
  22.           do the job.  Because of this, reading a FaceSaver(tm) image
  23.           is a two-step process.  First you do:
  24.             fstopgm > /dev/null
  25.           This will tell you whether you need to use _p_n_m_s_c_a_l_e. Then
  26.           use one of the following pipelines:
  27.             fstopgm | pgmnorm
  28.             fstopgm | pnmscale -whatever | pgmnorm
  29.           To go to PBM, you want something more like one of these:
  30.             fstopgm | pnmenlarge 3 | pgmnorm | pgmtopbm
  31.             fstopgm | pnmenlarge 3 | pnmscale <whatever> | pgmnorm | pgmtopbm
  32.           You want to enlarge when going to a bitmap because otherwise
  33.           you lose information; but enlarging by more than 3 does not
  34.           look good.
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  36.           FaceSaver is a registered trademark of Metron Computerware
  37.           Ltd. of Oakland, CA.
  38.  
  39.      SSSSEEEEEEEE AAAALLLLSSSSOOOO
  40.           pgmtofs(1), pgm(5), pgmnorm(1), pnmenlarge(1), pnmscale(1),
  41.           pgmtopbm(1)
  42.  
  43.      AAAAUUUUTTTTHHHHOOOORRRR
  44.           Copyright (C) 1989 by Jef Poskanzer.
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  63.      Page 1                                           (printed 9/7/93)
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