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calib3d/imgproc: add GCGraph::maxFlow() missing empty checks

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This commit is contained in:
Alexander Alekhin
2020-10-01 15:20:32 +00:00
parent 969b55036f
commit c6b63e0e28
1 changed files with 2 additions and 0 deletions
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modules/imgproc/src/gcgraph.hpp
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@@ -152,6 +152,8 @@ void GCGraph<TWeight>::addTermWeights( int i, TWeight sourceW, TWeight sinkW )
template <class TWeight>
TWeight GCGraph<TWeight>::maxFlow()
{
CV_Assert(!vtcs.empty());
CV_Assert(!edges.empty());
const int TERMINAL = -1, ORPHAN = -2;
Vtx stub, *nilNode = &stub, *first = nilNode, *last = nilNode;
int curr_ts = 0;