NAME¶
ppmtobmp - convert a portable pixmap into a BMP file
SYNOPSIS¶
ppmtobmp [
-windows] [
-os2]
[
-bpp=bits_per_pixel] [
ppmfile]
DESCRIPTION¶
Reads a portable pixmap as input. Produces a Microsoft Windows or OS/2 BMP file
as output.
OPTIONS¶
All options can be abbreviated to their shortest unique prefix and you can use a
double dash in place of the single dash, GNU-style.
- -windows
- Tells the program to produce a Microsoft Windows BMP file. (This is the
default.)
- -os2
- Tells the program to produce an OS/2 BMP file. (Before August 2000, this
was the default).
- -bpp
- This determines how many bits per pixel you want the BMP file to contain.
Only 1, 4, 8, and 24 are possible. By default, ppmtobmp chooses the
smallest number with which it can represent all the colors in the input
image. If you specify a number too small to represent all the colors in
the input image, ppmtobmp tells you and terminates. You can use
ppmquant or ppmdither to reduce the number of colors in the
image.
NOTES¶
To get a faithful reproduction of the input image, the maxval of the input image
must be 255. If it is something else,
ppmtobmp the colors in the BMP
file may be slightly different from the colors in the input.
Windows icons are not BMP files. Use
ppmtowinicon to create those.
SEE ALSO¶
bmptoppm(1),
ppmtowinicon(1),
ppmquant(1),
ppmdither(1),
ppm(5)
AUTHOR¶
Copyright (C) 1992 by David W. Sanderson.