FIX: labels start from 1

include/lsgrmGraphOperations.txx

@@ -109,8 +109,8 @@ MergeAllGraphsAndAchieveSegmentation(
       label = it.Get();
 
   // Compute LUT
-  label = 1;
   vnl_vector<typename TSegmenter::LabelImageType::InternalPixelType> lut(label,noDataLabel);
+  label = 1;
   for(it.GoToBegin();!it.IsAtEnd(); ++it)
     {
     unsigned int inputLabel = it.Get();