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Re: Scale many regions in one image without using xroi [message #81666 is a reply to message #81661]

Wed, 10 October 2012 07:03

Yngvar Larsen
Messages: 134
Registered: January 2010

Senior Member

On Monday, 8 October 2012 15:12:52 UTC+2, (unknown) wrote:
> Hi,
>

> I've been searching all morning and can't find an answer to a problem
> I'm having:
>
> I have two 2-D arrays which have clusters of 1s in an array of 0s.
> I'm interested these clusters (shapes). Some of the shapes are
> present in both arrays, some are missing from one or the other and in
> array 2 the shapes are too small. I want to scale up the shapes in
> array 2 so that the coincident shapes are the same size in both
> arrays. I can use label_region to find the shapes and calculate a
> correction factor. I just need a way to scale the shapes, presumably
> by growing them from a central point.
>
> Any ideas?

How about using a morphological operation like "dilate"?

http://www.exelisvis.com/docs/DILATE.html

(Wohooo! Finally a way to link to official documentation!)

--
Yngvar

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[Message index]

		Re: Scale many regions in one image without using xroi By: Yngvar Larsen on Thu, 11 October 2012 08:14
		Re: Scale many regions in one image without using xroi By: eeaal on Thu, 11 October 2012 03:31
		Re: Scale many regions in one image without using xroi By: eeaal on Thu, 11 October 2012 03:29
		Re: Scale many regions in one image without using xroi By: Yngvar Larsen on Wed, 10 October 2012 07:03
		Re: Scale many regions in one image without using xroi By: Brian Daniel on Tue, 09 October 2012 08:20
		Re: Scale many regions in one image without using xroi By: eeaal on Mon, 08 October 2012 06:15

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