
Cantata(Subform)             Khoros              Cantata(Subform)

     DITHER

     These routines convert images to a black pixel/white pixel
     image for use on monochrome screens or printers without
     pre-dithering algorithms.

     SHORT DESCRIPTION OF ROUTINES

     Dither Image -       Perform dithering using ordered
                         (matrix) technique.

     Optimize 45 deg. -  Perform dithering using ordered (matrix)
                         technique, optimized for 45 degrees.

     By Error Diffusion -
                         Perform dithering by four-direction
                         error diffusion.

                         Copyright 1991, University of New Mex-
                         ico. All rights reserved.

Khoros                    Release: 1.0                          1

