Patent ID: 6424730
Filing Date: 2002-07-23
Classification: G06T,Y10S

Abstract:
A method for the enhancement of medical images for hardcopy prints comprising the steps of:obtaining a medical image having a shadow region and a highlight region in digital format; conducting a plurality of operations for Human Visual System (HVS)-based edge enhancement with each operation having a uniquely specified high frequency amplification function and range such that edges are more enhanced in the shadow region than in the highlight region; adjusting image tone scale, for reflection prints increase the contrast in the shadow region and decrease the contrast in the highlight region, and for transparency prints decrease the contrast in the shadow region and increase the contrast in the highlight region; sending the processed image to an output device for producing hardcopy prints; and wherein said conducting step is based on Pnâˆ’1=Ln+&agr;n*Hn, and wherein Ln and Hn are the respective low frequency and high frequency components of image Pn at processing step n, &agr;n is the amplification function and n&gE;0.