From 2cf3a6e26cf73e08e5d2a0acb4014c69c8787d3e Mon Sep 17 00:00:00 2001
From: Alexander Karsakov <alexander.karsakov@itseez.com>
Date: Wed, 2 Apr 2014 17:10:10 +0400
Subject: [PATCH] Fixed error in case corners not found

---
 modules/imgproc/src/featureselect.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/imgproc/src/featureselect.cpp b/modules/imgproc/src/featureselect.cpp
index 0d665aa..54bb65f 100644
--- a/modules/imgproc/src/featureselect.cpp
+++ b/modules/imgproc/src/featureselect.cpp
@@ -164,6 +164,12 @@ static bool ocl_goodFeaturesToTrack( InputArray _image, OutputArray _corners,
             return false;
 
         total = std::min<size_t>(counter.getMat(ACCESS_READ).at<int>(0, 0), possibleCornersCount);
+        if (total == 0)
+        {
+            _corners.release();
+            return true;
+        }
+
         tmpCorners.resize(total);
 
         Mat mcorners(1, (int)total, CV_32FC2, &tmpCorners[0]);
-- 
2.7.4