From d48a41da492b32cbdeefec3663657376e6a382b2 Mon Sep 17 00:00:00 2001
From: Matt Hill <matthill@gmail.com>
Date: Mon, 20 Oct 2014 20:25:39 -0400
Subject: [PATCH] Do not add lines with no valid characters

---
 src/openalpr/textdetection/characteranalysis.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/openalpr/textdetection/characteranalysis.cpp b/src/openalpr/textdetection/characteranalysis.cpp
index c81c398..d959ff5 100644
--- a/src/openalpr/textdetection/characteranalysis.cpp
+++ b/src/openalpr/textdetection/characteranalysis.cpp
@@ -161,9 +161,10 @@ void CharacterAnalysis::analyze()
   {
     vector<Point> updatedTextArea = getCharArea(tempTextLines[i].topLine, tempTextLines[i].bottomLine);
     vector<Point> linePolygon = tempTextLines[i].linePolygon;
-    pipeline_data->textLines.push_back(TextLine(updatedTextArea, linePolygon));
-    
-    Mat debugImage = pipeline_data->textLines[i].drawDebugImage(bestThreshold);
+    if (updatedTextArea.size() > 0 && linePolygon.size() > 0)
+    {
+      pipeline_data->textLines.push_back(TextLine(updatedTextArea, linePolygon));
+    }
     
   }