Add threshhold ofParameter

beerpong/src/ofApp.cpp

 	grayVideo.allocate(VIDEO_WIDTH, VIDEO_HEIGHT);
 
 	learnBackground = true;
-	threshhold = 80;
+
+	gui.setup("Parameter");
+	gui.add(threshhold.set("Threshhold", 80, 0, 255));
 }
 
 //--------------------------------------------------------------
 
 //--------------------------------------------------------------
 void ofApp::draw(){
+
 	ofSetHexColor(0xffffff);
 	colorVideo.draw(20, 20);
 	grayVideo.draw(40 + VIDEO_WIDTH, 20);
 				contourFinder.blobs[i].boundingRect.getCenter().y + 60 + VIDEO_HEIGHT + VIDEO_HEIGHT);
 		}
 	}
+
+
+	gui.draw();
 }
 
 //--------------------------------------------------------------

beerpong/src/ofApp.h

 
 #include "ofMain.h"
 #include "ofxOpenCv.h"
+#include "ofxGui.h"
 
 class ofApp : public ofBaseApp{
 
 		ofxCvContourFinder 	contourFinder;
 
 		bool learnBackground;
-		int threshhold;
+
+		ofxPanel gui;
+
+		ofParameter<int> threshhold;
 };