1. A non-transitory computer-readable medium comprising computer-readable instructions for duplicate check detection, said computer-readable instructions comprising instructions for causing a processor to: receive a first image corresponding to an image of a first check; receive a second image corresponding to an image of a second check; and compare the first image and the second image to determine if the first check is a duplicate of the second check, wherein the computer readable instructions to compare the first image and the second image comprise instructions to: determine a plurality of regions or tiles on each of the first image and the second image around a center of a line of sight determined between coordinates of a first feature and a second feature in each of the first and second images; and compare a value for each of the plurality of regions or tiles in each of the first and second images.