diff --git a/apps/detector.cpp b/apps/detector.cpp
index 27c1021..ad6fba5 100644
--- a/apps/detector.cpp
+++ b/apps/detector.cpp
@@ -50,9 +50,18 @@ int main(int argc, char** argv)
     bool use_camera = parser.get<bool>("camera");
 
     // TODO: Load detector.
+	CascadeClassifier detector;
+	if(!detector.load(detector_file)){
+									 cout<<"bad detector file name"<<endl;
+									 }
 
     if (!image_file.empty())
     {
+		Mat m;
+		m=imread(image_file);
+		vector<Rect> result;
+		detector.detectMultiScale(m,result);
+		std::cout<<result.size()<<endl;
         // TODO: Detect objects on image.
 
     }