The block diagrams in Figures 1 and 2 below describe the watermarking and test procedure. Delta is a measure of how much the watermark has been altered as a result of changes to the images. Overall image watermarking procedure. Authentication procedure for watermarked images. Corporate Partner The Purdue Multimedia Testbed is working with Intellectual Protocols 2 to further develop image watermarking algorithms.
Future research includes watermarking paletized images as well as video sequences.
Address all comments and questions to Professor Edward J. Delp. Sample Images Below are several original and watermarked images. The watermark used for these pictures is also present. More detailed information may be found in our publications. Our recent publications in Multimedia Security.