1. A method for background suppression in a multi-function color scanning system, the method comprising: scanning an image into a plurality of pixels; generating RGB color values for each of said pixels; converting said RGB color values for each of said pixels into a Lab color space to obtain luminance and chrominance values for each pixel; determining whether a pixel is a white pixel or a non-white pixel based on said pixel's luminance and chrominance values; in response to said pixel being a white pixel, determining a chrominance adjustment value for said white pixel; modulating said chrominance adjustment value; and adjusting said white pixel by said modulated chrominance adjustment value; and converting adjusted and non-adjusted pixels to an output space.