From 081863fafff92e33ca0a3a6dc3044bd17df32db3 Mon Sep 17 00:00:00 2001
From: Matt Hill <matthill@gmail.com>
Date: Wed, 8 Apr 2015 17:32:30 -0400
Subject: [PATCH] Fix bug in CPU detector when provided an already grayscale
 image[C

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

diff --git a/src/openalpr/detection/detectorcpu.cpp b/src/openalpr/detection/detectorcpu.cpp
index 4f33dc2..da0b568 100644
--- a/src/openalpr/detection/detectorcpu.cpp
+++ b/src/openalpr/detection/detectorcpu.cpp
@@ -49,13 +49,14 @@ namespace alpr
   {
 
     Mat frame_gray;
+    
     if (frame.channels() > 2)
     {
       cvtColor( frame, frame_gray, CV_BGR2GRAY );
     }
     else
     {
-      frame_gray = frame;
+      frame.copyTo(frame_gray);
     }