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<DIV><FONT face=Arial size=4>Hi,</FONT></DIV>
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<DIV><FONT face=Arial size=4>I read the Level Set algorithm in ITKSofewareGuide.
To generate a initial Level set the general pipeline is that firstly smooth the
image using a edge-preserving smoother and then feed the relult as the input of
the GradientMagnitudeRecursiveGaussianImageFilter to get the gradient. I am very
confused. Because the GradientMagnitudeRecursiveGaussianImageFilter needs smooth
the image. This smooth will destroy the edge information which is preserved
by the edge-preserving filter.</FONT></DIV>
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<DIV><FONT face=Arial size=4>Best regards,</FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4>Yixun LIu</FONT></DIV></BODY></HTML>