System and method for changing touch screen functionality

An electronic device, comprising:

• a first camera that generates a video signal containing a representation of at least a portion of a scene within a field of view of the first camera;
• a second camera that captures an image upon receiving user input associated with controlling a shutter function of the second camera, the image representing at least a portion of a scene within a field of view of the second camera;
• a controller that acquires the video signal from the first camera and analyzes the video signal to determine whether one or more physical features of a user of the electronic device are present within the field of view of the first camera;
• and
• a touch input device operatively coupled to the controller and configured to include one or more touch points for receiving user input on a surface area of the touch input device, each touch point being associated with controlling a respective one of a plurality of functions of the second camera,
• wherein at least one of the touch points on the touch input device is associated with controlling the shutter function of the second camera, and a total number of touch points on the touch input device is dependent upon a result of the video signal analysis made by the controller.