1. A method for processing a check deposit, comprising: through a computing system of a financial institution: receiving a customer identification of an account for a deposit; receiving an image of a front side of a check, wherein the image of the front side of the check is received from a customer-controlled device; receiving an image of the back side of the check from the customer-controlled device; processing the image of the front side of the check to obtain deposit information for the check; processing the image of the back side of the check to determine whether a mark is present, wherein processing the image of the back side of the check comprises: determining whether a mark is present at an endorsement location in the image of the back side of the check without further performing a signature identification procedure; and generating a log file, the log file comprising the deposit information for the check.