Some examples of gesture transitions and the recognised gesture results can be seen in Fig. 5. It is very
important a correct learning of the skin-colour. If not, some problems with the detection and the gesture
recognition can be encountered. One of the main problems with the use of the application is the hand control
for maintaining it in the camera’s field of view and without touching the limits of the capture area. This
problem has been shown to disappear with user training.