Hi Michael,<br><br>It depends on whether you are using the FFTW implementation<br>or the VNL implementation.<br><br>Did you selected FFTW in the CMake Advanced flags<br>when configuring ITK ?<br><br><br>For the VNL case, I believe you need and image size of<br>
the type<br><br> N = 2^P . 3^Q . 5^R<br><br>That is a product of powers of 2, powers of 3 and powers of 5.<br>(where, of course, any of P,Q and R could be zero).<br><br><br> Regards,<br><br><br> Luis<br>
<br>-----------------------------------------------------------------------------------<br><div class="gmail_quote">On Tue, Jun 16, 2009 at 3:07 PM, Michael Jackson <span dir="ltr"><<a href="mailto:mike.jackson@bluequartz.net">mike.jackson@bluequartz.net</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;">I am still coming up to speed on the FFT classes but do I need to make sure the images that I am going to run an FFT on are all a power of 2? I am getting a runtime error that seems to be pointing in that direction.<br>
<br>
Thanks<br>
_________________________________________________________<br>
Mike Jackson <a href="mailto:mike.jackson@bluequartz.net" target="_blank">mike.jackson@bluequartz.net</a><br>
BlueQuartz Software <a href="http://www.bluequartz.net" target="_blank">www.bluequartz.net</a><br>
Principal Software Engineer Dayton, Ohio<br>
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