diff --git a/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.cpp b/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.cpp
index 9c6ef3c..487a979 100644
--- a/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.cpp
+++ b/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.cpp
@@ -5,6 +5,14 @@ ASIFT_matcher::ASIFT_matcher(): _nb_refs(0), _total_num_matchings(0), _resize_im
 	default_sift_parameters(_siftParam);
 }
 
+ASIFT_matcher::ASIFT_matcher(const char* ref_path): ASIFT_matcher()
+{
+	if(!loadReferences(ref_path))
+	{
+		std::cerr<<"Error : Failed to load references"<<std::endl;
+	}
+}
+
 // ASIFT_matcher::~ASIFT_matcher()
 // {
 
@@ -607,8 +615,8 @@ bool ASIFT_matcher::loadReferences(const char* ref_path)
 			std::getline(iss,tmp,' ');
 			if(VecLength!=atoi(tmp.c_str()))
 			{
-				std::cout<<"Error VecLength doesn't correspond..."<<std::endl;
-				// return false;
+				std::cerr<<"Error VecLength doesn't correspond..."<<std::endl;
+				return false;
 			}
 
 			// std::getline(iss,tmp,' ');
@@ -679,6 +687,30 @@ bool ASIFT_matcher::loadReferences(const char* ref_path)
 	return true;
 }
 
+ASIFT_matcher& ASIFT_matcher::operator=(const ASIFT_matcher& m)
+{
+
+	_nb_refs=m.getNbRef();
+	_im_refs=m.getRefImgs();
+	_size_refs=m.getSizeRef();
+	_zoom_refs=m.getZoomRef();
+
+	_num_keys=m.getNumKeys();
+	_num_tilts=m.getNumTilts();
+	_keys=m.getKeys();
+
+	_total_num_matchings=m.getNbMatch();
+	_num_matchings=getNbMatchs();
+	_matchings=m.getMatch();
+
+	_siftParam=m.getSiftPar();
+
+	_resize_imgs=m.isResizingImg();
+	_showDebug=m.isShowingDebug();
+
+	return *this;
+}
+
 //Debugging function
 void ASIFT_matcher::print() const
 {
diff --git a/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.hpp b/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.hpp
index 0e736a9..c347819 100644
--- a/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.hpp
+++ b/ASIFT_tests/demo_ASIFT_src/ASIFT_matcher.hpp
@@ -32,12 +32,13 @@ class ASIFT_matcher
 {
 public:
 	ASIFT_matcher();
+	ASIFT_matcher(const char* ref_path);
+	ASIFT_matcher(const ASIFT_matcher& matcher) { *this = matcher;}
 	// virtual ~ASIFT_matcher();
 
 	bool addReference(const char* image_path, unsigned int num_tilts=1);
 	unsigned int match(const char* image_path, unsigned int num_tilts =1);
 	unsigned int match(vector<float>& image, unsigned int w, unsigned int h, unsigned int num_tilts =1);
-	void print() const; //Debugging function
 	bool computeROI(int& x, int& y, unsigned int& h, unsigned int& w) const; //Compute the bounding rectangle of the keypoints
 	bool computeCenter(int& cx, int& cy) const;
 	bool distFilter(int threshold); //Filter keypoint which are far (Euclidian distance) from the center.
@@ -45,19 +46,28 @@ public:
 	bool saveReferences(const char* ref_path) const;
 	bool loadReferences(const char* ref_path);
 
+	ASIFT_matcher& operator=(const ASIFT_matcher& m);
+
 	unsigned int getNbRef() const{ return _nb_refs;}
 	const vector< vector< float > >& getRefImgs() const{ return _im_refs;}
 	const vector< pair<int,int> >& getSizeRef() const{ return _size_refs;}
 	const vector<float>& getZoomRef() const{ return _zoom_refs;}
+	const std::vector<int>& getNumKeys() const{ return _num_keys;}
+	const std::vector<int>& getNumTilts() const{ return _num_tilts;}
+	const std::vector< asift_keypoints >& getKeys() const{ return _keys;}
 	const vector < unsigned int >& getNbMatchs() const{ return _num_matchings;}
 	unsigned int getNbMatch() const{ return _total_num_matchings;}
 	const vector< matchingslist >& getMatch() const{ return _matchings;}
 	vector< matchingslist >& getMatch(){ return _matchings;}
-	const siftPar& getSiftPar(){ return _siftParam;}
+	const siftPar& getSiftPar() const{ return _siftParam;}
 	void setSiftPar(const siftPar &newSiftPar){ _siftParam = newSiftPar;}
+	bool isResizingImg() const{ return _resize_imgs;}
 	void setResizeImg(bool resize_imgs){ _resize_imgs=resize_imgs;}
+	bool isShowingDebug() const{ return _showDebug;}
 	void showDebug(bool showDebug){ _showDebug=showDebug;}
 
+	void print() const; //Debugging function
+
 protected:
 
 	//Reference Images
diff --git a/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/ASIFT_matcher.cpp.o b/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/ASIFT_matcher.cpp.o
index 8616508..aa9d51e 100644
Binary files a/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/ASIFT_matcher.cpp.o and b/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/ASIFT_matcher.cpp.o differ
diff --git a/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/test_ASIFT.cpp.o b/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/test_ASIFT.cpp.o
index 8530b84..c780f6d 100644
Binary files a/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/test_ASIFT.cpp.o and b/ASIFT_tests/demo_ASIFT_src/CMakeFiles/test_ASIFT.dir/test_ASIFT.cpp.o differ
diff --git a/ASIFT_tests/demo_ASIFT_src/results/matching.txt b/ASIFT_tests/demo_ASIFT_src/results/matching.txt
index 70625de..e7eb292 100644
--- a/ASIFT_tests/demo_ASIFT_src/results/matching.txt
+++ b/ASIFT_tests/demo_ASIFT_src/results/matching.txt
@@ -1,35 +1,34 @@
-39  2
+40  2
 0
-362.208  184.382  279.082  122.315
-335.039  109.815  103.199  302.382
-368.527  140.516  2.28707e-06  2.7439e-06
-329.485  112.667  5.27024e-39  1.418e-38
-322.959  119.184  0  0
-324.178  230.519  0  0
-355.697  190.284  1.07784e-35  4.42979e-36
-315.991  235.875  0  0
-230.152  191.051  2.67878e-35  1.98276e-35
-223.012  231.746  0  0
-377.929  162.983  1.15745e-34  7.48296e-35
-341.004  112.32  0  0
-322.192  279.122  3.15062e-35  3.2204e-36
-361.771  216.725  0  0
-218.599  221.752  2.92356e-34  1.64035e-34
-261.936  171.287  0  0
-300.647  157.174  0  0
-310.273  236.617  0  0
-363.462  146.017  0  0
-277.903  162.656  6438.94  5981.52
-361.959  175.732  42997.8  23137
-374.229  132.773  0  0
-221.354  204.377  0  0
-218.849  212.966  0  0
-367.28  179.248  0  0
-291.509  169.803  0  0
+291.509  169.803  321.857  265.435
+322.192  279.122  521.25  53.2794
+361.771  216.725  -2.75171e-10  -5.88405e-11
+310.273  236.617  2.06711e-38  5.80946e-39
+377.929  162.983  0  0
 343.099  119.621  0  0
-231.499  206.978  9506.8  5965.8
-371.585  152.449  13102.5  11096.8
+329.485  112.667  4.12015e-36  1.10856e-35
+322.959  119.184  0  0
+363.462  146.017  1.2775e-32  1.33655e-32
+230.152  191.051  0  0
+361.959  175.732  -1.98837e-10  -1.06993e-10
+223.012  231.746  2.45231e-38  1.21982e-38
+368.527  140.516  1.11629e-32  1.33926e-32
+367.28  179.248  0  0
+355.697  190.284  5.44443e-35  2.23759e-35
+362.208  184.382  0  0
+300.647  157.174  0  0
+324.178  230.519  0  0
+354.104  176.741  0  0
+335.039  109.815  2063.98  6047.64
+317.773  232.706  72922.9  20489.1
+371.585  152.449  0  0
+231.499  206.978  0  0
+315.991  235.875  0  0
+221.354  204.377  0  0
+261.936  171.287  0  0
+277.903  162.656  0  0
+374.229  132.773  2481.6  3687.22
+341.004  112.32  7112.49  20058.7
 307.57  255.971  1473.99  304.215
-317.773  232.706  0  0
-294.302  268.305  0  0
+322.959  119.184  0  0
 1
diff --git a/ASIFT_tests/demo_ASIFT_src/results/res.png b/ASIFT_tests/demo_ASIFT_src/results/res.png
index 28bb1d9..670f7a9 100644
Binary files a/ASIFT_tests/demo_ASIFT_src/results/res.png and b/ASIFT_tests/demo_ASIFT_src/results/res.png differ
diff --git a/ASIFT_tests/demo_ASIFT_src/test_ASIFT b/ASIFT_tests/demo_ASIFT_src/test_ASIFT
index 4fa1406..6a527e4 100755
Binary files a/ASIFT_tests/demo_ASIFT_src/test_ASIFT and b/ASIFT_tests/demo_ASIFT_src/test_ASIFT differ
diff --git a/ASIFT_tests/demo_ASIFT_src/test_ASIFT.cpp b/ASIFT_tests/demo_ASIFT_src/test_ASIFT.cpp
index 8f2cc25..fa6d64d 100644
--- a/ASIFT_tests/demo_ASIFT_src/test_ASIFT.cpp
+++ b/ASIFT_tests/demo_ASIFT_src/test_ASIFT.cpp
@@ -233,7 +233,7 @@ int main(int argc, char **argv)
     {
     	cout<<"	"<<NbMatch[i]<<endl;
     }
-	
+
 	int x,y,cx,cy;
 	unsigned int h,w;