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Re: JPEG image dimensions [message #55997 is a reply to message #55996]

Wed, 26 September 2007 09:29

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Rob.Dimeo@gmail.com writes:

> This seems like a simple task that I should know how to do but it's
> giving me some trouble.
>
> I have a JPEG file that has the following dimensions: (4,179,90)
> I'm having difficulties viewing this with TV and David's TVIMAGE.
>
> IDL> read_jpeg,file,img,/true
> IDL> help,img
>
> IMG BYTE = Array[4, 179, 90]
>
> Any suggestions?

It sounds like that could be a 24-bit image with an alpha
channel. Here is an article that describes how to display
such an image in IDL:

http://www.dfanning.com/ip_tips/transparentpng.html

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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		Re: JPEG image dimensions By: Rob.Dimeo on Wed, 26 September 2007 09:33
		Re: JPEG image dimensions By: David Fanning on Wed, 26 September 2007 09:29

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