What is the region covered by <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">labelMapRegion? </span><div>Try writing the result of the region of interest filter </div>
<div>to a file to make sure that your problem is not related </div><div>to the ROI filter. <br><div><div><br></div><div>Cagatay</div><div><br><div class="gmail_quote">On Mon, Oct 15, 2012 at 6:50 AM, wydesenej <span dir="ltr"><<a href="mailto:wydesenej@gmail.com" target="_blank">wydesenej@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello.<br>
<br>
I need to extract 2D binary image from 3D label map.<br>
I have got this error while trying to do this task:<br>
<br>
*/usr/local/include/ITK-4.2/itkMatrix.h:240: itk::ERROR: Singular matrix.<br>
Determinant is 0.*<br>
<br>
I am using this sequence of filters:<br>
<br>
/typedef itk::LabelMapToBinaryImageFilter< LabelMapType, BinaryImageType ><br>
LabelMapToBinaryImageFilterType;<br>
LabelMapToBinaryImageFilterType::Pointer mapToBinary =<br>
LabelMapToBinaryImageFilterType::New();<br>
mapToBinary->SetInput(m_labels[label_id].map);<br>
mapToBinary->SetBackgroundValue(0);<br>
mapToBinary->SetForegroundValue(255);<br>
mapToBinary->Update();<br>
<br>
typedef itk::RegionOfInterestImageFilter<BinaryImageType,BinaryImageType><br>
RegionOfInterestFilterType;<br>
RegionOfInterestFilterType::Pointer region =<br>
RegionOfInterestFilterType::New();<br>
region->SetInput(mapToBinary->GetOutput());<br>
region->SetRegionOfInterest(labelMapRegion);<br>
region->Update();<br>
<br>
typedef itk::ExtractImageFilter< BinaryImageType, Binary2ImageType ><br>
ExtractImageFilterType;<br>
ExtractImageFilterType::Pointer extract = ExtractImageFilterType::New();<br>
extract->SetInput(region->GetOutput());<br>
extract->SetDirectionCollapseToIdentity();<br>
extract->Update();<br>
/<br>
<br>
Please HELP!<br>
<br>
<br>
<br>
--<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><span style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Cemal Cagatay Bilgin</span><br style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
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