From 20091df725e56376f6df0f71d19c63a34a5bf71d Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Thu, 29 Sep 2011 17:17:42 +0200
Subject: [PATCH] Add assertion size>0 to MedianFilter

---
 src/util.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util.h b/src/util.h
index 97d638c9..60e99431 100644
--- a/src/util.h
+++ b/src/util.h
@@ -599,6 +599,7 @@ public:
     T median() const
     {
         int size = vSorted.size();
+        assert(size>0);
         if(size & 1) // Odd number of elements
         {
             return vSorted[size/2];