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Re: Displaying thicker lines on an image [message #76162 is a reply to message #76159]

Sat, 21 May 2011 06:49

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> You might try dilating with a cross as a structuring element.

Here is an example:

image = cgdemodata(21)
edgeImage = (sobel(image) gt 220)
cgdisplay, 800, 400
!p.multi=[0,2,1]
cgimage, edgeImage, /scale
k = intarr(3,3)
k[*,1]=1
k[1,*] = 1
print, k
cgimage, dilate(edgeImage, k), /scale
!p.multi=0
END

Cheers,

David

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

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[Message index]

		Re: Displaying thicker lines on an image By: Bringfried Stecklum on Sun, 22 May 2011 23:56
		Re: Displaying thicker lines on an image By: David Fanning on Sat, 21 May 2011 06:49
		Re: Displaying thicker lines on an image By: David Fanning on Sat, 21 May 2011 06:40
		Re: Displaying thicker lines on an image By: wlandsman on Tue, 24 May 2011 07:59

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