Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!ucsdhub!hp-sdd!hplabs!hpfcdc!hpldola!hp-lsd!oldcolo!weekley
From: weekley@oldcolo.UUCP (Bob Weekley)
Newsgroups: comp.graphics
Subject: Re: Corel Draw problem
Message-ID: <[70.1]graphics;1@oldcolo.UUCP>
Date: 30 Jul 89 12:10:03 GMT
References: <14697@umn-cs.CS.UMN.EDU>
Lines: 18


You state that you want 'true' color output from Corel Draw. The dithering
you see may be either a function in the printer itself or in the print
driver of Corel Draw. Run a test on a Lintronic and see what it does.
Arrange to examine other output examples on the printers you are using and
see if the ditering artifacts still persist. This will give you some clues.
Also it may help if you brushed up on color theory, so you know how color is
generated in the first place. An excellant book with lots of graphs is:
    "THE SCIENCE OF COLOR TECHNOLOGY"   try your local library.

The medium you are looking at makes a difference in the perceived quality of
work. 4 dots per mm (100 dpi) seems fairly very good on a video screen, but
the same resolution on a sheet of paper looks fairly coarse. A bitmap screen
dump shows this effectively.

        Robert R. Weekley at THE OLD COLORADO CITY ELECTRONIC COTTAGE
                            2502 W. Colorado Ave., C.S. Colorado 80904
                            (719) 632-3391 [8-N-1] (719) 632-4848 (voice)