<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear vtk users.<div><br></div><div>I am trying to perform a simple threshold over a 3D data set obtained from DICOM images.</div><div><br></div><div>I can render the data set before and after the threshold. Tried 2 approaches:</div><div><br></div><div>- vtkImageThreshold</div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 14px/normal Menlo; color: rgb(72, 107, 149); ">vtkSmartPointer<span style="color: #000000"><</span>vtkImageThreshold<span style="color: #000000">> threshold = </span>vtkSmartPointer<span style="color: #000000"><</span>vtkImageThreshold<span style="color: #000000">>::</span>New<span style="color: #000000">();</span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 14px/normal Menlo; "><span class="Apple-tab-span" style="white-space:pre"> </span>threshold-><span style="color: #486b95">ThresholdBetween</span>(<span style="color: #2b2e67">700</span>, <span style="color: #2b2e67">3000</span>);</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 14px/normal Menlo; color: rgb(72, 107, 149); "><span style="color: #000000"><span class="Apple-tab-span" style="white-space:pre"> </span>threshold-></span>SetInputConnection<span style="color: #000000">(reader-></span>GetOutputPort<span style="color: #000000">());</span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 14px/normal Menlo; "><span class="Apple-tab-span" style="white-space:pre"> </span>threshold-><span style="color: #486b95">ReplaceInOn</span>();</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 14px/normal Menlo; "><span class="Apple-tab-span" style="white-space:pre"> </span>threshold-><span style="color: #486b95">Update</span>();</div></div><div><br></div><div>I get exactly the same scalar values (range is between -2047 and 6143), so no threshold is actually made...</div><div><br></div><div>- and vtkThreshold</div><div>in this case I get an unstructured grid, which I don't want to since I need data set to apply further processing.</div><div><br></div><div>Any ideas why vtkImageThreshold is not working?</div><div><br></div><div>Kind regards,</div><div><br></div><div><div apple-content-edited="true">
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"><span class="Apple-style-span" style="font-size: 12px; ">E-mail:<span class="Apple-converted-space"> </span><span class="Apple-style-span" style="text-decoration: underline; ">pneves at ipcb dot pt</span></span></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><span class="Apple-style-span" style="font-size: 13px; font-family: Tahoma, sans-serif; "></span><br class="Apple-interchange-newline"><span></span><span></span><span><img height="100" width="185" id="ad7790bf-5b08-4b11-ad59-b925c35bcb4b" apple-width="yes" apple-height="yes" src="cid:76C50C54-B33A-4090-8FE2-F0AAC709BD05"></span><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; 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