Re: Macro to define a local region of interest

Posted by Douglas Benn-2 on Jun 01, 2011; 5:31pm
URL: http://imagej.273.s1.nabble.com/Macro-to-define-a-local-region-of-interest-tp3684393p3684397.html

Dear Michael,

Excellent.

Much appreciated.

Thank you.

Douglas

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of
Michael Schmid
Sent: Wednesday, June 01, 2011 12:30 PM
To: [hidden email]
Subject: Re: Macro to define a local region of interest

Hi Douglas,

you can do this with the Wand tool in ImageJ. The macro call is:

  doWand(x, y, tolerance, "8-connected")

where 'tolerance' specifies how much the gray value may deviate from the
one at (x,y).

The 'versatile wand' plugin also allows you to specify a maximum
gradient and can do selections with inner holes.

 
http://imagejdocu.tudor.lu/doku.php?id=plugin:segmentation:versatile_wan
d:start

Michael
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On 2011-Jun-01, at 18:47, Benn, Douglas K. wrote:

> I am creating an anatomical atlas of CTs and have a student
laboriously
> identifying anatomical points with a mouse click. I would like to use
a
> pair of x,y cords as a starting point to automatically search for a
> region which has similar properties in terms of grayness which will
> outline the anatomical structure such as the Maxillary sinus. Is there
a
> macro which if you give it a starting x,y coordinate will search
around
> to form a closed ROI?
>
> Thanks!
>
> Douglas