Added video_test.launch to create an activity that reads stream from camera and publishes it to ROS.
Added image_converter.py to convert image stream to opencv image
Added smile_detect.py to detect faces and smiles in faces. It is topic that publishes the number of smiled faces
Added haarcascade_smile.xml and haarcascade_frontalface_default.xml. Big thanks to the guys who provided these resources online.
Use: roslaunch video_test.launch to start reading from camera Use: python smile_detect.py to get the number of smiles that are detected by the haar face/smile detector