If it is on your monitor only, then it is probably a brightness
correction (or maybe a gamma correction).  Brightness is usually set
from knobs or buttons on the front of the monitor.  Gamma is a little
more tricky and depends on monitor/video card.

If this is happening only on print-outs, then it is a printer problem -
driver maybe, or maybe an "ink-saver" mode, or you may have a printer
that cannot produce a true black - or has the black ink supply
exhausted.

Tim Glover
Senior Environmental Scientist - Geochemistry 
Geoenvironmental Department
MACTEC Engineering and Consulting, Inc.
Kennesaw, Georgia, USA
Office 770-421-3310
Fax 770-421-3486
Email [EMAIL PROTECTED] 
Web www.mactec.com

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
ChristophBert
Sent: Thursday, January 27, 2005 6:56 AM
To: opendx2-users@lists.berlios.de
Subject: [opendx-users] Black color problem

Hello,
I use OpenDX to visualize CT data in greyscale. My problem is, that 
black color in the colormap editor does not show up black but (light) 
grey in the image, e.g. the black-to-white distribution is reduced to 
gray-to-white. Any idea what causes this behaviour?

Thanks!

Christoph

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