1. A method for automatically capturing an image of a check from a video sequence of images of the check without user selection, the video sequence having a plurality of frames, comprising: determining an aspect ratio of the check; finding in a single frame of the plurality of frames of the video sequence both routing transit symbols that delineate a routing transit number on a magnetic ink character recognition (MICR) line of the check; matching to a template each of the routing transit symbols; determining a first distance from one of the routing transit symbols to the other of the routing transit symbols and a second distance from said one of the routing transit symbols to an edge of the check; calculating a ratio of the first distance and the second distance; comparing each digit of the routing transit number to templates of digits to determine values of the routing transit number; capturing the image of the check from the single frame; and determining if the aspect ratio, a worst match of the matching to the template, the ratio of the first and second distances, and the comparing said each digit of the routing transit number fall within a predetermined range of acceptable values before said capturing the image of the check from the single frame.