Principles of LCI (IMAGE) Tokyo Medical and Dental University Caption Left. The spectral characteristics of white fluorescence excited by a laser for white light and the short-wavelength laser. LCI expands and reduces color information simultaneously to intensify shades of red and white. Right. LCI enhances the contrast of red and white colors compared with a white light image. Credit Department of Gastrointestinal Surgery,TMDU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.