From 7cd94d2e4c2d0b89362f70b3c8badc112ba269a9 Mon Sep 17 00:00:00 2001
From: Kees-V <zussemezo@gmail.com>
Date: Sun, 19 Apr 2015 20:28:57 +0200
Subject: [PATCH] filterByOuterMask: Re-initialize mask for every contour to
 get a correct calculation

---
 src/openalpr/textdetection/characteranalysis.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/openalpr/textdetection/characteranalysis.cpp b/src/openalpr/textdetection/characteranalysis.cpp
index 65ccc89..1bbd913 100644
--- a/src/openalpr/textdetection/characteranalysis.cpp
+++ b/src/openalpr/textdetection/characteranalysis.cpp
@@ -549,7 +549,8 @@ namespace alpr
 
       totalChars++;
 
-      drawContours(tempFullContour, textContours.contours, i, Scalar(255,255,255), CV_FILLED, 8, textContours.hierarchy);
+	  tempFullContour = Mat::zeros(plateMask.size(), CV_8U);
+	  drawContours(tempFullContour, textContours.contours, i, Scalar(255,255,255), CV_FILLED, 8, textContours.hierarchy);
       bitwise_and(tempFullContour, plateMask, tempMaskedContour);
 
       float beforeMaskWhiteness = mean(tempFullContour)[0];