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web application similar to ION?? [message #53843]

Mon, 07 May 2007 09:55

aleks.franca@gmail.co is currently offline

aleks.franca@gmail.co
Messages: 33
Registered: March 2007

Member

Hello!
I have a simple IDL application that works fine. It takes two or more
images, multiplies each image by a given weight, and adds all images
to a resulting image. I want to make it a web application, so users
can choose the images and the weights. The problem is that the ION
license is very expensive for what I need.

Can I do this with another software or something else that sustitutes
ION???

Thank you

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Re: web application similar to ION?? [message #53903 is a reply to message #53843]

Wed, 09 May 2007 04:16

Jo Klein
Messages: 54
Registered: January 2006

Member

Hi Aleks,
A non-IDL solution would be to use tools from ImageMagick. They can do
simple image manipulations like scaling and summing/averaging, see man
convert.
Jo

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Re: web application similar to ION?? [message #53914 is a reply to message #53843]

Tue, 08 May 2007 08:58

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

Well, I was hoping someone could provide a more thoughtful response but
alas, my half baked ideas will have to do. You can use any scripting
language your web server supports that allows you to call external
applications.

The easiest way is to use files to pass your parameters and output back
and forth. You would have some sort of template .pro file that would
get certain fields filled in according to how your user parameterizes
your application (one of which is the unique ID for this users session),
then you call IDL and run that file which will create an output file in
a temp directory someplace with a name based on that unique ID (you will
also need to set an "at" job to delete the file after a certain period
of time). your web application will then wait for this file to be
created and then load it up in the output page.

A more elegant approach would be something similar to the file posted in
this link. While at the time I saved a copy of this, I have never used it.

http://tinyurl.com/26eq93

-Rick

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Re: web application similar to ION?? [message #53932 is a reply to message #53843]

Mon, 07 May 2007 20:48

aleks.franca@gmail.co
Messages: 33
Registered: March 2007

Member

Any application that is similar to ION?

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