1. A method of calibration, comprising: receiving, by a processor, an image of a human gesture; calibrating by identifying the human gesture in the image; determining a gesture interaction area framed by the human gesture; computing an interaction boundary of the gesture interaction area; computing a gesture area defined by the interaction boundary of the gesture interaction area; mapping the gesture area defined by the interaction boundary of the gesture interaction area to pixels in a display device; receiving another image of a different human gesture; mapping the another image of the different human gesture to different regions within the gesture interaction area; and interpreting the different regions within the gesture interaction area to a command; wherein human gestures are calibrated to the pixels in the display device.