Please check the lookuptable / Window-Level in the image viewer. It may not be assigning color lookups within the dynamic range of your data.<br><br><div class="gmail_quote">On Fri, Aug 28, 2009 at 8:08 AM, Michael Xanadu <span dir="ltr"><<a href="mailto:xanadu.michael@googlemail.com">xanadu.michael@googlemail.com</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 implemented a Shape Detection as it's described in ShapeDetectionLevelSetFilter.cxx in the example folder and it works fine. By accident, I controlled the output of the integrated sigmoid filter, by using an itkImageFileWriter and by using a vtkImageViewer2 (via itkImageToVTKImageFilter.txx). I found out that while the file writer shows the correct sigmoid picture, the image viewer shows just a black output. I even looked at the pixels by using an itkImageRegionIterator and all of them seem to be zero?!<br>
<br>How is that possible? Is that usual behavior? Who should I trust?<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Karthik Krishnan<br>R&D Engineer,<br>Kitware Inc.<br>Ph: 518 881 4919<br>Fax: 518 371 4573<br>