1. A computer-implemented method executed by one or more processors, the method comprising: receiving an original payment instrument image associated with a tangible payment instrument, the tangible payment instrument to be submitted for electronic transaction clearing and including a payee, a payor, an amount, and an authorization; creating a clearing payment instrument image based on the original payment instrument image, the clearing payment instrument image associated with a first contrast value; presenting the clearing payment instrument image in a user interface in response to creating the clearing payment instrument image; in response to presenting the clearing payment instrument image: receiving an indication of an area of the clearing payment instrument image from the user interface, the indicated area including less than the entire clearing payment image; and receiving an indication of a second contrast value to which to update the indicated area from the user interface, the second contrast value different than the first contrast value; and in response to receiving the indication of the area and receiving the indication of the second contrast value from the user interface, updating a contrast value of the indicated area of the clearing payment instrument image to the second contrast value while maintaining the first contrast value for other areas of the clearing payment instrument image.