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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks Brad, that was just what I needed, because pixels equal to the threshold value are not set to OutsideValue.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I have one more question (actually three). What does it mean when the method
</span><span style="font-size:10.0pt;font-family:"Courier New"">itk::Image::TransformPhysicalPointToIndex(point,pixelIndex)</span><span style="font-size:10.0pt;font-family:NimbusMonL-Regu">
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">returns a 0? Do the index coordinates still get stored in
</span><span style="font-size:10.0pt;font-family:"Courier New"">pixelIndex</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">? Why are they not useful?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks & Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ruturaj<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Bradley Lowekamp [mailto:blowekamp@mail.nih.gov]
<br>
<b>Sent:</b> Tuesday, June 03, 2014 5:43 PM<br>
<b>To:</b> Girish, Gavaskar Ruturaj<br>
<b>Cc:</b> community@itk.org<br>
<b>Subject:</b> Re: [ITK] Finding non-zero pixels<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello,<o:p></o:p></p>
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<p class="MsoNormal">There quite a large number of ways to do this in ITK. Have you looked at the ThresholdImageFilter[1]?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Brad<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">[1] <a href="http://www.itk.org/Doxygen/html/classitk_1_1ThresholdImageFilter.html">http://www.itk.org/Doxygen/html/classitk_1_1ThresholdImageFilter.html</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Jun 3, 2014, at 2:34 AM, Girish, Gavaskar Ruturaj <<a href="mailto:gavaskar.ruturaj.girish@philips.com">gavaskar.ruturaj.girish@philips.com</a>> wrote:<o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Dear all,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I have a grayscale image. I want a binary mask which is white where the pixels in the original image are non-zero, and black elsewhere. Which filter(s) can I use for this
task?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks & Regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Ruturaj<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif""><o:p> </o:p></span></p>
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