1. An apparatus for a human face detection based control of a device, said apparatus comprising: a digital camera for capturing an image in a digital data form; an image processor coupled to receive the image and for applying a face detection algorithm to detect the human face image in the captured image; a controller coupled to said image processor for generating a first control signal in response to the detection or non-detection of the human face image in the captured image; a first timer for signaling a first pre-set time period, said first timer coupled to said controller to cause the first control signal to be generated upon the detecting the human face in the captured image for the first pre-set period; and a second timer for signaling a second pre-set time period, said second timer coupled to said controller to cause said controller to generate a second control signal in response to not detecting the human face image in the captured image for the second time period, wherein the first control signal is effective to initiate supplying of power to at least part of the device, and the second control signal is effective to disconnect power from at least part of the device.