1. A method for determining a deblurred image, the method implemented at least in part by a data processing system and comprising: a) receiving a sharp image of a scene captured with a short exposure time; b) receiving a blurred image of the scene captured with a longer exposure time than the sharp image, wherein the blurred image has a higher level of motion blur than the sharp image; c) determining a blur kernel responsive to the sharp image and the blurred image; d) determining one or more reference differential images responsive to the sharp image; e) determining a deblurred image responsive to the blurred image, the blur kernel and the one or more reference differential images; and f) storing the deblurred image in a processor-accessible memory system.