From b5f366fb70983a4dcf03a413628c198274a14f41 Mon Sep 17 00:00:00 2001
From: Vadim Pisarevsky <no@email>
Date: Thu, 4 Nov 2010 12:38:27 +0000
Subject: [PATCH] fixed possible overflow in getThreshVal_Otsu_8u (ticket #602)

---
 modules/imgproc/src/thresh.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/imgproc/src/thresh.cpp b/modules/imgproc/src/thresh.cpp
index 8eefdf4..f041e43 100644
--- a/modules/imgproc/src/thresh.cpp
+++ b/modules/imgproc/src/thresh.cpp
@@ -444,7 +444,7 @@ getThreshVal_Otsu_8u( const Mat& _src )
 
     double mu = 0, scale = 1./(size.width*size.height);
     for( i = 0; i < N; i++ )
-        mu += i*h[i];
+        mu += i*(double)h[i];
     
     mu *= scale;
     double mu1 = 0, q1 = 0;
-- 
2.7.4