imgproc: fix RemoveOverlaps() with empty input vector

1c180f4c · Alexander Alekhin · ffd4a279 · 1c180f4c
Commit 1c180f4c authored Apr 29, 2019 by Alexander Alekhin
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hough.cpp modules/imgproc/src/hough.cpp +2 -0

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--- a/modules/imgproc/src/hough.cpp
+++ b/modules/imgproc/src/hough.cpp
@@ -1355,6 +1355,8 @@ static void GetCircleCenters(const std::vector<int> &centers, std::vector<Vec4f>
 template<typename T>
 static void RemoveOverlaps(std::vector<T>& circles, float minDist)
 {
+    if (circles.size() <= 1u)
+        return;
    float minDist2 = minDist * minDist;
    size_t endIdx = 1;
    for (size_t i = 1; i < circles.size(); ++i)