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Re: sigma_filter calling sequence [message #73895 is a reply to message #73892]

Sat, 04 December 2010 17:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

burton449 writes:

> Ok!
> the script and the image are in the directory d:\
> the image is a .tif
>
> In IDL command line I typed the calling sequence with those
> parameters:
>
> Result = sigma_filter( image.tif, 5, 2 )
>
> I want the box_widht to be of 5 and the N_sigma to be 2.
>
> The error i got is:
>
> % Syntax error.
> IDL> Result = sigma_filter( image.tif, 5, 2 )
> % Expression must be a structure in this context: IMAGE.
> % Execution halted at: $MAIN$
>
> If try to show the path of the image like d:\\image.tif the error
> message is:
> % Illegal character in program text.

The "image" in the command has to be the image itself,
not the name of the file containing an image. So, you have
to read the image data out of the image file.

IDL> image = Read_Tiff('myimagefile.tif')
IDL> Help, image

Try that and see what happens. :-)

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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[Message index]

		Re: sigma_filter calling sequence By: David Fanning on Sun, 05 December 2010 09:16
		Re: sigma_filter calling sequence By: burton449 on Sun, 05 December 2010 08:47
		Re: sigma_filter calling sequence By: David Fanning on Sat, 04 December 2010 17:04
		Re: sigma_filter calling sequence By: burton449 on Sat, 04 December 2010 15:55
		Re: sigma_filter calling sequence By: David Fanning on Sat, 04 December 2010 14:47
		Re: sigma_filter calling sequence By: burton449 on Sun, 05 December 2010 08:36
		Re: sigma_filter calling sequence By: burton449 on Sun, 05 December 2010 07:44
		Re: sigma_filter calling sequence By: burton449 on Sun, 05 December 2010 07:41

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