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Re: unwanted color bands in image display [message #31362 is a reply to message #31359]

Fri, 28 June 2002 14:09

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

David Fanning <david@dfanning.com> writes:

> Asti Bhatt (astib@cc.usu.edu) writes:
>
>> 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 ?
...
> Have you tried something like TVIMAGE or IMDISP to display
> your image? Sometimes getting everything set up just right
> can be a bit of a pain.

Man, has my own dear PLOTIMAGE dropped off the radar screen? (sniff)

Getting to Asti's question, I remember that there was a bug in one
recemt version of IDL's Linux graphics libraries which caused annoying
banding. If that is the case, then there should be a patch
downloadable from the RSI page that fixes the problem.

Craig

http://cow.physics.wisc.edu/~craigm/idl/idl.html (under Graphics)

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: unwanted color bands in image display By: David Fanning on Wed, 03 July 2002 11:21
		Re: unwanted color bands in image display By: astib on Wed, 03 July 2002 10:57
		Re: unwanted color bands in image display By: Craig Markwardt on Fri, 28 June 2002 14:52
		Re: unwanted color bands in image display By: David Fanning on Fri, 28 June 2002 14:37
		Re: unwanted color bands in image display By: Craig Markwardt on Fri, 28 June 2002 14:09
		Re: unwanted color bands in image display By: Liam E. Gumley on Fri, 28 June 2002 14:07
		Re: unwanted color bands in image display By: David Fanning on Fri, 28 June 2002 13:34
		Re: unwanted color bands in image display By: JD Smith on Mon, 22 July 2002 11:59

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