1. A method, comprising: recognizing touch input sensor data as a component of a multi-finger gesture on a touch-screen display; determining an ellipse that approximately encompasses the component, the ellipse having a primary axis and a secondary axis that are orthogonal; generating a distribution that projects sensor data elements from the primary axis based on detected intensity of the touch input sensor data; and generating a histogram function based on the distribution, the histogram function indicating individual contacts of the component and separation of the individual contacts.