1. A method for detecting tape on a document, the method comprising: capturing a first image of a document, the first image captured while at least a portion of the document is subjected to a first electromagnetic radiation; capturing a second image of the document, the second image captured while at least a portion of the document is subjected to a second electromagnetic radiation; and comparing the first image to the second image to determine whether tape is adhered to the document; wherein capturing the first image of the document comprises capturing a first plurality of line images of the document to form the first image, and wherein capturing the second image of the document comprises capturing a second plurality of line images of the document to form the second image, and wherein each line image is an image of a vertically spread line of sight of a segment of the document that is less than a whole of the document.