From 42d942e19c3f1d94ac72c1d4e2b21e05521e0b77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Iago=20Su=C3=A1rez?= <iago_h92@hotmail.com>
Date: Sat, 4 Nov 2017 17:12:20 +0100
Subject: [PATCH] Clearing data into the detect method of the class
 cv::LineSegmentDetectorImpl

---
 modules/imgproc/src/lsd.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/imgproc/src/lsd.cpp b/modules/imgproc/src/lsd.cpp
index a8ea384ab8..1e738ac4e0 100644
--- a/modules/imgproc/src/lsd.cpp
+++ b/modules/imgproc/src/lsd.cpp
@@ -430,6 +430,9 @@ void LineSegmentDetectorImpl::detect(InputArray _image, OutputArray _lines,
     if(w_needed) Mat(w).copyTo(_width);
     if(p_needed) Mat(p).copyTo(_prec);
     if(n_needed) Mat(n).copyTo(_nfa);
+
+    // Clear used structures
+    list.clear();
 }
 
 void LineSegmentDetectorImpl::flsd(std::vector<Vec4f>& lines,