1. A method of detecting streaks in printed documents comprising: with an imaging device, capturing an image of a printed document; transmitting the image data representing the printed document to a computing device, with the computing device, dividing the image data into a number of rectangles horizontally across the image data so that the rectangles overlap in the horizontal direction; with the computing device, determining the maximum, minimum, median, standard deviation, and average values for each rectangle; and with the computing device, determining rectangles that comprise a streak and rectangles that do not comprise a streak but comprise noise based on the maximum, minimum, median, standard deviation, and average values for each rectangle.