<br>Hi Somi,<br><br>The simplest way of restricting the level set to that <br>section will be to :<br><br>1) Mask the input image with the binary image that <br> represents the red region.<br><br>2) Use the RegionOfInterestImageFilter in order to extract<br>
from that masked image the region corresponding to <br> the bounding box of the red region.<br><br>3) Use the resulting smaller image as the input for the<br> LevelSet.<br><br><br>Most regions in ITK are specified in terms of rectangular<br>
regions whose walls are parallel to the axis of the image.<br><br> <br> Regards,<br><br><br> Luis<br><br><br>--------------------------------------------------------------------------------<br><div class="gmail_quote">
On Tue, Apr 13, 2010 at 2:31 PM, somi <span dir="ltr"><<a href="mailto:seesomi@gmail.com">seesomi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br><br>a) Is is possible to restrict the growth of level set filter to a user defined volume ?<br> For example, in the attached CT image, if a seed point is put at the blue cross point, and we want to grow a region only in the cylindrical reddish region specified by the user,<br>
can we restrict the region growing only to that region ? I want to minimize calculations and memory utilization<br><br><br>b) Can we apply an ITK filter only to specific non-rectangular region ( like the conical region in the attached image ) ?<br>
<br><br>Thanks,<br><font color="#888888">Somi<br> <br><br>
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