1. An image processing method, comprising: acquiring a first well-exposed image frame of a scene; acquiring additional image frames of the same scene; wherein the additional image frames include a second image frame and a third image frame; generating one or more combined images based on the well-exposed image frame of the scene and at least one of the additional image frames; determining a frame-to-frame motion between the second image frame and the third image frame; and responsive to said frame-to-frame motion exceeding a threshold, acquiring a second well-exposed image frame of the scene.