[Insight-users] Re: reg seed points

[Luis Ibanez]

Hi Prasad,

In order to manually select seed points
you may want to use the ImageViewer application
available in

    InsightApplications/ImageViewer

It will require you to install FLTK.
(http://www.fltk.org).

When you click with the left mouse button,
the viewer will display physical coordinates
on the lower right corner.

You will have to convert these coordinates
to index coordinates by taking into account
the image origin and spacing.

---

BTW:
Why do you need seed points for registration ?


If you want to experiment with region growing
applications, you may also want to consider
playing firs with the application:
http://www.itk.org/HTML/RegionGrowingSegmentation.htm

available in

  InsightApplications/RegionGrowingSegmentation





Regards,


   Luis


--------------------
Prasad Sarma wrote:
> HI Luis,
> 
>     I could get to work the registraion for same
> modality and different modalities. Thanks for your
> help.I have a quesion about the selection of the seed
> points for the different image dimensions.In the
> example you have BrianProtonDensityImage.png of
> dimensions 181X271 for which the seed points are
> specified in the exmaples. But I have two images of
> 256X256 and 64X 64 dimensions. How can I choose the
> seed points for these? I don't want to use trial and
> error because I am not sure the output I am getting is
> correct or wrong in any of the cases.
> 
> Could you provide some suggestion.
> 
> Thanks
> Prasad
> 
> 
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