From ee0c985491fe1d7af2d40eb626638aae67f46e64 Mon Sep 17 00:00:00 2001
From: Suleyman TURKMEN <sturkmen@hotmail.com>
Date: Mon, 1 Oct 2018 22:22:37 +0300
Subject: [PATCH] Merge pull request #12649 from sturkmen72:patch-9

Update hog.cpp (#12649)
---
 modules/objdetect/src/hog.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/objdetect/src/hog.cpp b/modules/objdetect/src/hog.cpp
index cce5d27ac3..b7030fdd17 100644
--- a/modules/objdetect/src/hog.cpp
+++ b/modules/objdetect/src/hog.cpp
@@ -138,6 +138,8 @@ void HOGDescriptor::setSVMDetector(InputArray _svmDetector)
 
 bool HOGDescriptor::read(FileNode& obj)
 {
+    CV_Assert(!obj["winSize"].empty());
+
     if( !obj.isMap() )
         return false;
     FileNodeIterator it = obj["winSize"].begin();