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Re: Extracting image profile? [message #1196 is a reply to message #1195]

Fri, 02 July 1993 05:48

add
Messages: 3
Registered: May 1993

Junior Member

In article <1993Jul1.151614.13789@ousrvr.oulu.fi>, martin@phoenix.oulu.fi
(Martin Black) wrote:
>
> Being a fairly novice IDL user, I haven't been able to figure out how
> to extract an arbitrary profile of data values (as opposed to pixel values)
> from an image. The routine PROFILE returns pixel values (i.e., numbers in
> the range 0-255), but what I want is the actual values of the underlying
> data. Can anyone help me out?
>
> Thanks,
> Martin Black
> martin@hiisi.oulu.fi

How about just grabbing a slice of your image into another
variable. Ex,

IDL>help,img
IMG FLOAT = Array(512,512)
IDL>slice=img(*,128)
IDL>plot,slice

This will give you a plot of all of the 'x' values in line
128 (center line) of your image.

You could now write a very simple procedure to do this
using the CURSOR command to determine either the 'x' or 'y'
line you would like to plot.

\ | /
Al Ducharme \|/
--------------------------------------------------------*---
/|\

"Science is a cruel mistress!" / | \
-Unknown

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[Message index]

		Re: Extracting image profile? By: martin on Tue, 06 July 1993 02:56
		Re: Extracting image profile? By: rivers on Fri, 02 July 1993 07:37
		Re: Extracting image profile? By: dieh2133 on Fri, 02 July 1993 06:24
		Re: Extracting image profile? By: dieh2133 on Fri, 02 July 1993 06:20
		Re: Extracting image profile? By: add on Fri, 02 July 1993 05:48

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