1. An image processing system comprising: a database including factor profiles associated with stored monochrome colors; a printer controller that assigns the factor profiles to target colors determined from a color image according to a color space proximity of the target colors with the stored monochrome colors, where the factor profiles represent a combination of factors including a gray level and a screen angle, where each of the factor profiles identifies a monochrome color having a different combination of the gray level and the screen angle, and where the gray level and the screen angle are incorporated into a monochrome image comprising the stored monochrome colors to retain a memory of the target colors associated with the color image; and a processor configured to: analyze the color image to determine the target colors; locate a prime pixel in a high density area of the monochrome image; and associate the screen angle of the monochrome image as passing through the prime pixel and through a highest number of pixels in a vicinity of the prime pixel.