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Re: IDL crashes/hangs while reading images [message #38879] Wed, 07 April 2004 11:24
gkulkarn is currently offline  gkulkarn
Messages: 3
Registered: April 2004
Junior Member
Hello,

Paul has been right. IDL 5.5 seems to be unsupported on red hat 9.0. I
emailed RSI. They tried to read image using 5.5 with RH 9.0, and they
too got the segfault. They say that officially IDL is not supported on
RH 9.0 until the version 6, but the version 5.6 works perfectly on RH
9.0. So I have upgraded IDL to 5.6 and it has been working great!

So folks, add another woe to you RH 9.0 'woe-list': 'IDL 5.5 and RH
9.0 do not go hand in hand!'.

Thanks to all those who replied!

Gauri.



Paul Van Delst <paul.vandelst@noaa.gov> wrote in message news:<c4rpi8$b01$1@news.nems.noaa.gov>...

> 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
Re: IDL crashes/hangs while reading images [message #38919 is a reply to message #38879] Mon, 05 April 2004 06:59 Go 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
Re: IDL crashes/hangs while reading images [message #38934 is a reply to message #38919] Sat, 03 April 2004 18:25 Go to previous message
gkulkarn is currently offline  gkulkarn
Messages: 3
Registered: April 2004
Junior Member
QUERY_IMAGE also hangs. Here is the output.

IDL> result = query_image('orion.jpg',orion_info)
% Compiled module: QUERY_IMAGE.
% Loaded DLM: JPEG.

Gauri.


Reimar Bauer <R.Bauer@fz-juelich.de> wrote in message news:<c4mtok$a141$1@zam602.zam.kfa-juelich.de>...
> 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.
>>
>> I have RH-9 on my laptop. And I am using IDL 5.5. It seems to me that
>> my linux is missing some libs or something like that.
>>
>> Has anybody faced this problem before? Any help is appreciated.
>>
>> Gauri.
>>
>> (PS: I already posted this message on comp.lang.idl 2 days back, but I
>> still don't see it there. So sorry for repitition, but need to do it.)
>
>
> comp.lang.idl-pvwave is the right place.
>
>
> Please could you show what query_image returns
>
> Reimar
Re: IDL crashes/hangs while reading images [message #38935 is a reply to message #38934] Sat, 03 April 2004 10:04 Go to previous message
R.Bauer is currently offline  R.Bauer
Messages: 1424
Registered: November 1998
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.
>
> I have RH-9 on my laptop. And I am using IDL 5.5. It seems to me that
> my linux is missing some libs or something like that.
>
> Has anybody faced this problem before? Any help is appreciated.
>
> Gauri.
>
> (PS: I already posted this message on comp.lang.idl 2 days back, but I
> still don't see it there. So sorry for repitition, but need to do it.)


comp.lang.idl-pvwave is the right place.


Please could you show what query_image returns

Reimar

--
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg-i/
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