Methods, apparatus, software, and systems of the present invention allow for optimization of color and shades of gray documents prior to their conversion to a monochrome format. If color/gray elements are identified in the document, the distance between them and their intensity is determined. If there...http://www.google.com.au/patents/US7777917?utm_source=gb-gplus-sharePatent US7777917 - Document color and shades of gray optimization using solid monochrome colors
