1. A method for detecting or imaging a document, the method comprising: capturing a first plurality of images of a document at a first wavelength of electromagnetic radiation; capturing a second plurality of images of the document at a second wavelength of electromagnetic radiation; and assembling the first and second pluralities of images to form one or more images of the document; wherein each of the one or more images is monochromatic; and wherein the first wavelength of electromagnetic radiation is different from the second wavelength of electromagnetic radiation.