1. A method for processing an image of a color form having respondent information entered thereon to remove a color background from the form, said method comprising the steps of: retrieving a template image comprising a plurality of pixels representing the form without any respondent information entered thereon; retrieving a respondent image comprising a plurality of pixels representing the form and the respondent information entered thereon; registering the respondent image against the template image to establish correspondence between pixels of the respondent image and pixels of the template image; determining whether to keep the pixels in the respondent image by applying a threshold comparison with respect to their corresponding pixels in the template image, wherein the threshold comparison at least assesses color similarity between corresponding pixels in the respondent and template images; and removing pixels from the respondent image based on the threshold comparison to obtain a color form dropout image including pixels only associated with the respondent information.