<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">I still don't really understand what does FastMarchingFilter get as input. I tried the FastMarchingFilter example from ITK/Segmentation and i don't see how providing only the output of the Sigmoid Filter and seed points i only get a black image.<div>I tried to use the SignedDanielssonDistanceFilter and the Image that i get from it looks pretty good. so i used</div><div><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><br></p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><br></p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"> smoothing-><span style="color: #3d2380">SetInput</span>([<span style="color: #518187">itkImage</span> <span style="color: #33595d">itkImporter</span>]->GetOutput() );</p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><span class="Apple-tab-span" style="white-space:pre"> </span>gradientMagnitude-><span style="color: #3d2380">SetInput</span>( smoothing->GetOutput() );</p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><span class="Apple-tab-span" style="white-space:pre"> </span>sigmoid-><span style="color: #3d2380">SetInput</span>( gradientMagnitude->GetOutput() );</p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px"><span class="Apple-tab-span" style="white-space:pre"> </span></p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><span class="Apple-tab-span" style="white-space:pre"> </span>geodesicActiveContour-><span style="color: #3d2380">SetInput</span>( distanceMap->GetOutput() );</p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><span class="Apple-tab-span" style="white-space:pre"> </span>geodesicActiveContour->SetFeatureImage( sigmoid->GetOutput() );</p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px"><span class="Apple-tab-span" style="white-space:pre"> </span></p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"><span class="Apple-tab-span" style="white-space:pre"> </span>thresholder-><span style="color: #3d2380">SetInput</span>( geodesicActiveContour->GetOutput() );</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo">and update the threshold.</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo">But the result is still a black image. Any ideea what am i still doing so wrong.</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo">Thanks in advance,</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo"> Ella</p><div><br></div><div><br></div></div></td></tr></table><br>