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Re: borders of segments [message #60350]

Mon, 19 May 2008 02:12

izimine
Messages: 11
Registered: November 1997

Junior Member

On May 19, 1:12 am, moxam...@gmail.com wrote:
> I developed an image segmentation method in IDL but I do not know how
> to visualize the borders of the segments. I want to see my initial
> image and the borders of the resulted segments upon it. Please, can
> anyone help me?

quick and dirty solution for direct graphics and indexed color
table...

seg = your_segmentation_method(in_data) ; assuming 2D image
mm_kern = [[0,1,0],[1,1,1],[0,1,0]]
cnt = dilate(seg, mm_kern) - seg ; external border
loadct, 0, ncolors=254
tvlct, 255, 255, 0, 255
tv, bytscl(in_data, top=254) * (1-cnt) + cnt * 255

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Re: borders of segments [message #60355 is a reply to message #60350]

Sun, 18 May 2008 16:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

moxament@gmail.com writes:

> I developed an image segmentation method in IDL but I do not know how
> to visualize the borders of the segments. I want to see my initial
> image and the borders of the resulted segments upon it. Please, can
> anyone help me?

You might find this article will generate some ideas for you:

http://www.dfanning.com/ip_tips/boundary.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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