Techniques for automatically adjusting and/or optimizing the color and/or intensity of the illuminating light used in a vision system is presented. The intensity of each of a plurality of illuminating light colors is allowed to be independently adjusted to adapt the illumination light based on the color...http://www.google.com/patents/US7256833?utm_source=gb-gplus-sharePatent US7256833 - Method and apparatus for automatically optimizing optical contrast in automated equipment