[Insight-users] watershed with MRI

[Silvester Czanner]

Hi,

I have used one of the Examples - Interactive Segmentation Editor with 
MRI images with a pixel type of unsigned char. This program is using a 
strange input file with some parameters. After some experimental way I 
was able to setup the parameters correctly, that the program was able to 
read my data. Here is my setting:

mouse   
/home/czanner/install/ITKv1/Insight/Examples/SegmentationEditor/data/mouse/volume5 
UnsignedChar 1919 509 5 Big Yes 1 %s.%03d 237 0 

BUT the size of my data is 1920x510. :-) With this parameters the 
example program including watershed algorithm is working well.

Silvester


Miller, James V (Research) wrote:

> The watershed works on scalar images.  I believe it takes a gradient 
> magnitude image as its input.  As such, it probably works best if the 
> image data is floating point. 
>
>     -----Original Message-----
>     *From:* lydia coin [mailto:lydia_coin3d@yahoo.fr]
>     *Sent:* Wednesday, January 08, 2003 12:11 PM
>     *To:* insight-users@public.kitware.com
>     *Subject:* [Insight-users] watershed with MRI
>
>     Did anyone succeed to use the watershed algorithm with MRI images
>     with a pixel type of unsigned char. I failed to make it work and
>     I'm wondering if it works only with RBG images
>
>     thanks for any hints
>
>     Lydia
>
>
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-- 

Dr. Silvester Czanner

Pittsburgh Supercomputing Center
Carnegie Mellon University
4400 Fifth Avenue,
Pittsburgh, PA 15213, USA

http://www.psc.edu