A method of measuring motion blur is disclosed comprising obtaining a moving edge temporal profile r1(k) of an image of a high-contrast moving edge, calculating the masked local contrast m1(k) for r1(k) and the masked local contrast m2(k) for an ideal step edge waveform r2(k) with the same amplitude as r1(k), and calculating the measure or motion blur Psi as a difference function, Omega=S(DeltaxSigmak|m1(k)-m2(k)|beta)1/beta. The masked local contrasts are calculated using a set of convolution kernels scaled to simulate the performance of the human visual system, and Psi is measured in units of just-noticeable differences.
Visible motion blur