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Re: IDL crashes/hangs while reading images [message #38919 is a reply to message #38879] Mon, 05 April 2004 06:59 Go to previous messageGo to previous message
Paul Van Delst[1] is currently offline  Paul Van Delst[1]
Messages: 1157
Registered: April 2002
Senior Member
Gauri wrote:
> Hi,
>
> I am a newbie here! I have just started using idl for image
> processing. I encountered following fatal problems:
>
> # I can't read any image. I first tried to read it using READ_IMAGE.
> Following is the output.
>
> IDL> image = read_image('orion.jpg')
> % Compiled module: READ_IMAGE.
> % Compiled module: QUERY_IMAGE.
> % Loaded DLM: JPEG.
> Segmentation fault
>
> Here idl quits and I am back to my command prompt.
> I tried with READ_JPEG,'orion.jpg',image. But it just hangs after
> saying 'Loaded DLM: JPEG'. It's problem with .png image too.
>
> # I just discovered that XPLOT3D procedure also doesn't work. It also
> hangs.

Hello,

Email a description of your problem to support@rsinc.com along with your
license/installation number (found at the top of the license file) and other contact info.

I recently experienced a problem where *any* invocation of an iTool crashed IDL. It took
about a day or so of about three back and forth emails between me and one of the IDL
support blokes and the problem was solved. The IDL suport engineering types are a good
sort - very thorough in my experience.

I consider the segfaulting of IDL the same as an "internal compiler error" in a compiler -
there's a bug and the vendor needs to fix it. Unfortunately for your case, it may be that
IDL 5.5 simply isn't supported (or supportable) under RH9. A potentially simple solution
might be to upgrade to IDL 6.0 - but beware that you will then lose any useful (built-in)
online help. Last time I checked (last week), the Search plug-in for Acrobat reader wasn't
available for linux systems (and if anyone is aware of the contrary, please please let me
know!)

paulv

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