"Pie" Segmentation

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"Pie" Segmentation

Gary Laevsky
Hello All,

I received a great deal of help with my last inquiry so I'm dipping into
the well again (one day, I hope to be a supplier).

I have an image of a cartilage disc.  First, I would like to segment this
image into "pie" shaped portions, 10 degrees each (different conditions for
different regions around the disc).  Then this will be segmented into inner
and outer portions.  We will be analyzing the outer capsule of this disc as
compared to the inner capsule, within each pie section.

I think this is pretty complex and I truly do appreciate any help I get.

Thanks again in advance.
Best,

Gary



Gary Laevsky, Ph.D.
Keck Facility Manager, CenSSIS
Northeastern University
302 Stearns
360 Huntington Ave.
Boston, MA 02115
voice(617) 373 - 2589<br>
fax(617) 373 - 7783<br><br>

http://www.censsis.neu.edu

http://www.ece.neu.edu/groups/osl

http://www.keck3dfm.neu.edu
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Inclinated ellipse

Marco Brugnara
Dear all,
I need to draw on a picture an ellipse which axes aren't parallel with the
X-Y axes. Is there a possibility to do that, rotating in some way the "oval"
command?
Thank you very much,
Marco
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Re: "Pie" Segmentation

Bo de Lange
In reply to this post by Gary Laevsky
Have a look at a macro I wrote for something completely different.  
http://rsb.info.nih.gov/ij/macros/tools/MeasurePieSegmentsTool.txt
You will need to alter the angles I put in for my work, and use your  
own. You might also want to do two measurements: one with a small  
radius (inner segement) one for a larger radius (inner and outer  
segment). Perhaps you can even subtract on inner segment from the  
outer as you go along.

Bo


On Jul 25, 2005, at 5:23 PM, Gary Laevsky wrote:

> Hello All,
>
> I received a great deal of help with my last inquiry so I'm dipping  
> into the well again (one day, I hope to be a supplier).
>
> I have an image of a cartilage disc.  First, I would like to  
> segment this image into "pie" shaped portions, 10 degrees each  
> (different conditions for different regions around the disc).  Then  
> this will be segmented into inner and outer portions.  We will be  
> analyzing the outer capsule of this disc as compared to the inner  
> capsule, within each pie section.
>
> I think this is pretty complex and I truly do appreciate any help I  
> get.
>
> Thanks again in advance.
> Best,
>
> Gary
>
>
>
> Gary Laevsky, Ph.D.
> Keck Facility Manager, CenSSIS
> Northeastern University
> 302 Stearns
> 360 Huntington Ave.
> Boston, MA 02115
> voice(617) 373 - 2589<br>
> fax(617) 373 - 7783<br><br>
>
> http://www.censsis.neu.edu
>
> http://www.ece.neu.edu/groups/osl
>
> http://www.keck3dfm.neu.edu
>
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Re: Inclinated ellipse

Albert-5
In reply to this post by Marco Brugnara
Rotate the image instead to match your oval axes.

Albert
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Re: Inclinated ellipse

Robert Dougherty
There is an ellipse ROI plugin at
http://www.optinav.com/ImageJplugins/Ellipse-ROI.htm

Bob
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Re: "Pie" Segmentation

Gary Laevsky
In reply to this post by Bo de Lange
Thank you Bo.  I'm working on it.
Best,

Gary



Gary Laevsky, Ph.D.
Keck Facility Manager, CenSSIS
Northeastern University
302 Stearns
360 Huntington Ave.
Boston, MA 02115
voice(617) 373 - 2589<br>
fax(617) 373 - 7783<br><br>

http://www.censsis.neu.edu

http://www.ece.neu.edu/groups/osl

http://www.keck3dfm.neu.edu
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