pgmtoppm(1)             UNIX System V(11 January 1991)              pgmtoppm(1)


NAME
      pgmtoppm - colorize a portable graymap into a portable pixmap

SYNOPSIS
      pgmtoppm colorspec [pgmfile]
      pgmtoppm colorspec1-colorspec2 [pgmfile]
      pgmtoppm -map mapfile [pgmfile]

DESCRIPTION
      Reads a portable graymap as input.  Colorizes it by multiplying the the
      gray values by specified color or colors, and produces a portable pixmap
      as output.

      If only one color is specified, black in the pgm file stays black and
      white in the pgm file turns into the specified color in the ppm file.  If
      two colors (separated by a dash) are specified, then black gets mapped to
      the first color and white gets mapped to the second.

      The color can be specified in five ways:

      o     A name, assuming that a pointer to an X11-style color names file
            was compiled in.

      o     An X11-style hexadecimal specifier: rgb:r/g/b, where r g and b are
            each 1- to 4-digit hexadecimal numbers.

      o     An X11-style decimal specifier: rgbi:r/g/b, where r g and b are
            floating point numbers between 0 and 1.

      o     For backwards compatibility, an old-X11-style hexadecimal number:
            #rgb, #rrggbb, #rrrgggbbb, or #rrrrggggbbbb.

      o     For backwards compatibility, a triplet of numbers separated by
            commas: r,g,b, where r g and b are floating point numbers between 0
            and 1.  (This style was added before MIT came up with the similar
            rgbi style.)

      Also, the -map flag lets you specify an entire colormap to be used.  The
      mapfile is just a ppm file; it can be any shape, all that matters is the
      colors in it and their order.  In this case, black gets mapped into the
      first color in the map file, and white gets mapped to the last.

SEE ALSO
      rgb3toppm(1), ppmtopgm(1), ppmtorgb3(1), ppm(5), pgm(5)

AUTHOR
      Copyright (C) 1991 by Jef Poskanzer.







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