FIX: change label image pixel type to UInt32

include/lsrmGraphToOtbImage.h

@@ -24,7 +24,7 @@ namespace lsrm
 		typedef typename GraphType::NodeType NodeType;
 		typedef std::vector< std::shared_ptr<NodeType> > NodeList;
 		typedef typename NodeList::const_iterator NodeConstIterator;
-		typedef unsigned long int LabelPixelType;
+		typedef unsigned int LabelPixelType;
 		typedef otb::Image<LabelPixelType, 2> LabelImageType;
 		using ContourOperator = lp::ContourOperations;
 		

include/lsrmGraphToOtbImage.txx

@@ -31,7 +31,7 @@ namespace lsrm
 			it.Set(0);
 		
 		// Start at 1 (value 0 can be used for invalid pixels)
-		long unsigned int label = 1;
+		LabelImageType::InternalPixelType label = 1;
 		for(auto& region : graph.m_Nodes)
 		{
 			lp::CellLists borderPixels;