Peter,<br><br>I think you are correct that image orientation is not used in the spatial object.<br><br>Please file a bug following the procedure in: <a href="http://itk.org/Wiki/ITK_Procedure_for_Contributing_Bug_Fixes">http://itk.org/Wiki/ITK_Procedure_for_Contributing_Bug_Fixes</a><br>
<br>Thanks,<br><br>Bill<br><br><div class="gmail_quote">On Feb 13, 2008 11:31 AM, Peter Roesch <<a href="mailto:Peter.Roesch@fh-augsburg.de">Peter.Roesch@fh-augsburg.de</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello,<br><br>thanks a lot for including image orientation into the registration<br>framework, this simplifies matters a lot for me.<br><br>I have changed my application to use OrientedImage and found that<br>results look fine if the complete image content is used.<br>
Unfortunately, problems arise as soon as I use an<br>itkImageMaskSpatialObject for both fixed and moving images to<br>exclude the background via thresholding. Mutual information<br>complains that all points are outside of the image which results<br>
in an empty histogram. I have stored the masks and found the correct<br>orientation in the mhd files.<br><br>My current guess is that image orientation is not taken into<br>account from the IsInside method of the itkImageMaskSpatialObject.<br>
<br>Here is some additional information about the types used in the<br>application:<br><br>const unsigned int Dimension = 3;<br>typedef float PixelType;<br>typedef itk::OrientedImage< PixelType, Dimension > ImageType;<br>
<br>typedef unsigned char MaskPixelType;<br>typedef itk::OrientedImage< MaskPixelType, Dimension > BinaryImageType;<br><br>typedef itk::BinaryThresholdImageFilter< ImageType, BinaryImageType ><br> ThresholdFilterType;<br>
<br>typedef itk::ImageMaskSpatialObject< Dimension > MaskImageType;<br><br><br>Greetings and thanks in advance<br>Peter<br>_______________________________________________<br>Insight-users mailing list<br><a href="mailto:Insight-users@itk.org">Insight-users@itk.org</a><br>
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