| unwanted color bands in image display [message #31367] |
Fri, 28 June 2002 13:15  |
astib
Messages: 15
Registered: June 2002
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Junior Member |
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Hi everybody,
Thanks for answering my little queries. I have one again.
When I try to display image with TV or TVSCL, or for that matter,
store as a PS and then view it, it always shows annoying color bands
or lines in the image. These bands are generally red or blue,
depending on the monitor properties I guess. I tried to use, device,
decomposed=0, but that doesn't make any difference. I am quite
frustrated with this thing, and hence I like to use LIVE TOOLS instead
of TV things, but they have limited capabilities. Any suggestions for
removing these color bands ?
Thanks,
Asti
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| Re: unwanted color bands in image display [message #31418 is a reply to message #31367] |
Fri, 05 July 2002 04:33  |
R.Bauer
Messages: 1424
Registered: November 1998
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Senior Member |
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Asti Bhatt wrote:
>
> Hi everybody,
>
> Thanks for answering my little queries. I have one again.
>
> When I try to display image with TV or TVSCL, or for that matter,
> store as a PS and then view it, it always shows annoying color bands
> or lines in the image. These bands are generally red or blue,
> depending on the monitor properties I guess. I tried to use, device,
> decomposed=0, but that doesn't make any difference. I am quite
> frustrated with this thing, and hence I like to use LIVE TOOLS instead
> of TV things, but they have limited capabilities. Any suggestions for
> removing these color bands ?
>
> Thanks,
> Asti
Dear Asti,
we don't have the problems with our linux systems you described.
May be it's a configuration problem of your startup routine.
Our garphic cards all in 16bit mode.
The following lines are from a more general startup file for different
platforms.
( http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_source/idl .all)
if strlowcase(!version.os) eq 'linux' then device,
get_visual_depth=depth
if strlowcase(!version.os) eq 'linux' then device, true_color=depth
if strlowcase(!version.os) eq 'linux' then window, /free, /pixmap,
colors=-10
if strlowcase(!version.os) eq 'linux' then wdelete, !d.window
if strlowcase(!version.os) eq 'linux' then device, decomposed=0,
retain=2
..
Hope this helps
Reimar
--
Reimar Bauer
Institut fuer Stratosphaerische Chemie (ICG-I)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
------------------------------------------------------------ -------
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml
============================================================ =======
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