摘要
Different digital watermarking techniques and their applications are brieflyreviewed. Solution to a practical problem with visible image marking is presented, together withexperimental results and discussion. Main focus is on reduction of error caused by the mark additionand subtraction. Image classification based on its mean gray level and adjustment of out-of-rangegray levels are implemented.
Different digital watermarking techniques and their applications are brieflyreviewed. Solution to a practical problem with visible image marking is presented, together withexperimental results and discussion. Main focus is on reduction of error caused by the mark additionand subtraction. Image classification based on its mean gray level and adjustment of out-of-rangegray levels are implemented.
基金
ProjectsupportedbytheNationalNaturalScienceFoundationofChina( 60 0 72 0 30 )andKeyDisciplinaryDevelopmentProgramofShanghai .
