home *** CD-ROM | disk | FTP | other *** search
-
-
-
- ppmdither(1) AMIGA (14 July 1991) ppmdither(1)
-
-
-
- NAME
- ppmdither - ordered dither for color images
-
- SYNOPSIS
- ppmdither [-dim dimension] [-red shades] [-green shades] [-
- blue shades] [ppmfile]
-
- DESCRIPTION
- Reads a portable pixmap as input, and applies dithering to
- it to reduce the number of colors used down to the specified
- number of shades for each primary. The default number of
- shades is red=5, green=9, blue=5, for a total of 225 colors.
- To convert the image to a binary rgb format suitable for
- color printers, use -red 2 -green 2 -blue 2. The maximum
- number of colors that can be used is 256 and can be computed
- as the product of the number of red, green and blue shades.
-
- OPTIONS
- -dim dimension
- The size of the dithering matrix. Must be a
- power of 2.
-
- -red shades The number of red shades to be used; minimum
- of 2.
-
- -green shades The number of green shades to be used; minimum
- of 2.
-
- -blue shades The number of blue shades to be used; minimum
- of 2.
-
- SEE ALSO
- pnmdepth(1), ppmquant(1), ppm(5)
-
- AUTHOR
- Copyright (C) 1991 by Christos Zoulas.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- Page 1 (printed 10/19/91)
-
-
-
-