1. A method for analyzing an image comprising the steps of: (a) dividing a reference image into: (iv) one or more detection cells collectively comprising a detection zone in which a statistically significant change in one or more predetermined features in said reference image is expected to occur; (v) one or more veto cells collectively comprising a veto zone in which any detection in said veto zone of a statistically significant change in one or more predetermined features in said reference image is used to disable any detection of a statistically significant change in one or more predetermined features in said reference image in said detection zone; and (vi) zero or more ignore cells collectively comprising an ignore zone in which no computation is performed.