From 3d85e7ac0d53d79b0f8b108d6282093d67a155f9 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@itseez.com>
Date: Fri, 25 Dec 2015 13:48:00 +0300
Subject: [PATCH] features2d agast: clear in/out keypoints container

fixes #5863
---
 modules/features2d/src/agast.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/features2d/src/agast.cpp b/modules/features2d/src/agast.cpp
index b8db008c4..44f08384c 100644
--- a/modules/features2d/src/agast.cpp
+++ b/modules/features2d/src/agast.cpp
@@ -7961,6 +7961,7 @@ public:
             cvtColor( _image, ogray, COLOR_BGR2GRAY );
             gray = ogray;
         }
+        keypoints.clear();
         AGAST( gray, keypoints, threshold, nonmaxSuppression, type );
         KeyPointsFilter::runByPixelsMask( keypoints, mask );
     }