[comp.lang.postscript] Color Dithering options?

barnett@crdgw1.crd.ge.com (Bruce Barnett) (10/24/89)

We have an application that required printing color images on
a PostScript printer. The printers we have seen all dither a single
color into a single pattern. Therefore blocks of color end up having
a repeating pattern.

	This interferes with the visual interpretation of the image.
We would like to use a better dithering algorithm that uses a
variety of patterns for the same shade.

	Of course we can dither the raster image ourselves and
then convert it into PostScript.

	The questions are:

		Is there any printer that uses such dithering techniques?

		Is there a way to do this in PostScript? If so, does it
		make more sense to do in in the host and not the printer?

--
Bruce G. Barnett	<barnett@crd.ge.com>   uunet!crdgw1!barnett