COLOUR MANAGEMENT FOR BACKLIT APPLICATIONS

摘要

UNTIL NOW COLOR MANAGEMENT FOR BACKLIT APPLICATIONS WAS PERFORMED MOSTLY BYAPPLYING THE EDUCATED GUESS OF THOSE INVOLVED IN EDITING OR PRINTING. SUCHAPPROACH IS SUBJECTIVE, TEDIOUS AND TAKES TIME WHILE THE RESULT MAY NOT BE THEEXPECTED ONE. THE METHOD PRESENTED IN THIS PAPER PROPOSES AN OBJECTIVE APPROACHTO PERFORM COLOUR MANAGEMENT FOR BACKLIT APPLICATIONS. AFTER OBTAINING THEMEDIA-RELATIVE TRANSMITTANCE MEASUREMENTS OF THE BACKLIT MEDIA AND THEMEASUREMENT OF SPECTRAL POWER DISTRIBUTION OF THE LIGHT EMITTED THROUGH THEMEDIA, AN ICC-PROFILE CAN BE CONSTRUCTED FOR EACH MEDIA AND LIGHTBOX COMBINATION.AN IMAGE IS MODIFIED FOR EACH OF THE LIGHT BOXES SO WHEN PRINTED IT IS EXPECTED TOLOOK PERCEPTUALLY THE SAME BEING LIMITED ONLY BY THE RESULTING COLOUR GAMUT. THEAPPROACH IS INTENDED TO BE USED WITH THE GRAPHIC TECHNOLOGY COLOUR MANAGEMENTSYSTEMS, COMPONENTS AND DEVICES INCREASING THEIR EXISTING FUNCTIONALITY.