ppmchange(1)ppmchange(1)NAMEppmchange - change all pixels of one color to another in a
portable pixmap
SYNOPSISppmchange oldcolor newcolor [...] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Changes all pixels of
oldcolor to newcolor, leaving all others unchanged. Up to
256 colors may be replaced by specifying couples of colors
on the command line.
The colors 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 hex-
adecimal 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.)
SEE ALSOpgmtoppm(1), ppm(5)AUTHOR
Wilson H. Bent. Jr. (whb@usc.edu) with modifications by
Alberto Accomazzi (alberto@cfa.harvard.edu)
3 December 1993 1