<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><br><div><div>On 16-Mar-09, at 1:59 PM, Wen Shi wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi Karthik,<br>Thanks for your reply.<br>But I am not familiar with medical image.<br>So as you said, I need to gather at least four slices images then combine them into one image, then input the<br>image into the ITK project. Is that what I need to do?<br></div></blockquote><div><br></div><div><br></div><div><span class="Apple-style-span" style="font-family: -webkit-monospace; font-size: 14px; ">You should use ALL the 2D slices to make up the 3D image.</span></div><span class="Apple-style-span" style="font-family: -webkit-monospace; font-size: 14px; ">See: Reading DICOM and Other One-Slice-Per-File Data Formats<br>here: <a href="http://www.itk.org/Wiki/MetaIO/Documentation">http://www.itk.org/Wiki/MetaIO/Documentation</a></span></div><div><font class="Apple-style-span" face="-webkit-monospace" size="4"><span class="Apple-style-span" style="font-size: 14px;"><br></span></font></div><div><font class="Apple-style-span" face="-webkit-monospace" size="4"><span class="Apple-style-span" style="font-size: 14px;">/Ghassan</span></font></div><div><font class="Apple-style-span" face="-webkit-monospace" size="4"><span class="Apple-style-span" style="font-size: 14px;"><br></span></font></div><div><font class="Apple-style-span" face="-webkit-monospace" size="4"><span class="Apple-style-span" style="font-size: 14px;"><br></span></font><blockquote type="cite"><div>Thanks a lot <br><br>Wen Shi<br><br><br>----- Original Message -----<br>From: "Karthik Krishnan" <<a href="mailto:karthik.krishnan@kitware.com">karthik.krishnan@kitware.com</a>><br>To: "Wen Shi" <<a href="mailto:wsa18@sfu.ca">wsa18@sfu.ca</a>><br>Cc: "insight-users" <<a href="mailto:insight-users@itk.org">insight-users@itk.org</a>><br>Sent: Friday, March 13, 2009 5:39:47 PM GMT -08:00 US/Canada Pacific<br>Subject: Re: [Insight-users] 3D and 2D image for VED filter<br><br>You need at least 4 slices for the recursive gaussian filter to run. Its used to compute the hessians. Your 3D image is less than 4 slices thick. <br><br><br>On Fri, Mar 13, 2009 at 6:56 PM, Wen Shi < <a href="mailto:wsa18@sfu.ca">wsa18@sfu.ca</a> > wrote: <br><br><br>Hi Guys, <br><br>When I was using VED filter processing some vessel image, <br>I got the error as : <br>RecursiveGaussianfilter requires at least 4 pixels along axis 2. <br><br>So I guess the problem is the image I tried to process is a 2D image. <br>But to my personal intuition it's a 3D one. <br>How to decide the image is 3D or 2D?(maybe this seems pretty stupid and ridiculous but sorry for that). <br><br>Thanks a lot <br><br>Wen SHi <br>_____________________________________ <br>Powered by <a href="http://www.kitware.com">www.kitware.com</a> <br><br>Visit other Kitware open-source projects at <br><a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a> <br><br>Please keep messages on-topic and check the ITK FAQ at: <a href="http://www.itk.org/Wiki/ITK_FAQ">http://www.itk.org/Wiki/ITK_FAQ</a> <br><br>Follow this link to subscribe/unsubscribe: <br><a href="http://www.itk.org/mailman/listinfo/insight-users">http://www.itk.org/mailman/listinfo/insight-users</a> <br><br><br><br>-- <br>Karthik Krishnan <br>R&D Engineer, <br>Kitware Inc. <br>Ph: 518 371 3971 x119 <br>Fax: 518 371 3971 <br>_____________________________________<br>Powered by <a href="http://www.kitware.com">www.kitware.com</a><br><br>Visit other Kitware open-source projects at<br><a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a><br><br>Please keep messages on-topic and check the ITK FAQ at: http://www.itk.org/Wiki/ITK_FAQ<br><br>Follow this link to subscribe/unsubscribe:<br>http://www.itk.org/mailman/listinfo/insight-users<br></div></blockquote></div><br></body></html>