ppmchange
Section: User Commands (1)
Updated: 3 December 1993
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NAME
ppmchange - change all pixels of one color to another in a portable pixmap
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:
- 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)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- SEE ALSO
-
- AUTHOR
-
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