ppmchange (1)

SYNOPSIS

ppmchange 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: "specifying colors"

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.)

SEE ALSO

- pgmtoppm (1) - - ppm (5) -

AUTHOR

Wilson H. Bent. Jr. (whb@usc.edu) with modifications by Alberto Accomazzi (alberto@cfa.harvard.edu)