An apparatus and method are described for predicting a subjective quality rating associated with a reference image compressed at a given level. My apparatus includes components for, and my method includes steps of, storing a digitized color image representing a reference image in memory and...http://www.google.com.au/patents/US5790717?utm_source=gb-gplus-sharePatent US5790717 - Apparatus and method for predicting subjective quality of compressed images 
