| Re IDL w/ 12-bit grayscale? [message #48282] |
Mon, 03 April 2006 06:29 |
Ertel, KG (Klaus)
Messages: 3
Registered: November 2004
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Junior Member |
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Hello Mike,
Is it really worth the hassle? My guess would be that you can't
distinguish more than, say, 10 grey levels by eye. 12 bits would give
you 4096 grey levels, slight overkill. I very much prefer false colour
representations anyway.
Cheers,
Klaus
Klaus Ertel
K.ertel@rl.ac.uk
Central Laser Facility
Rutherford Appleton Lab
UK
-----Original Message-----
From: Mike Chinander [mailto:mchinand@midway.uchicago.edu]
Posted At: 28 March 2006 17:50
Posted To: comp.lang.idl-pvwave
Conversation: IDL w/ 12-bit grayscale?
Subject: IDL w/ 12-bit grayscale?
Does anyone have experience using IDL to display 12-bit grayscale images
on hardware that supports it while maintaining full bit-depth of the
images? I'm using IDL on Linux and one of the available X11 visuals is
GrayScale with depth 12. I used .Xdefaults settings to force IDL to use
this visual. TVSCL works but using the /words keyword with TVSCL results
in the error that the hardware doesn't support 16-bits per pixel and
would sometimes crash the X server. It seems the hardware must actually
take 16-bits per pixel even though the depth resolution is only 12-bits.
Thanks,
--Mike
--
Michael Chinander, PhD
m-chinander@uchicago.edu
Department of Radiology
University of Chicago
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