Coded Fingerprinting Based Watermarking to Resist Collusion Attacks and Trace Colluders

The alteration, repackaging, and redistribution of multimedia content like image, video, audio, etc. poses a serious threat to both national security and commercial markets. Presently with the growing popularity of digital media the world is becoming smaller and smaller. That is mainly due to the internet connectivity and WWW phenomena. But the copyright protection of intellectual properties has become a necessity for prevention of illegal copying and verification of content integrity. Here wavelet transform plays the role of an efficient and robust tool due to its multi-resolution capability along with singular value decomposition (SVD) for watermarking. Both of these when implemented with coded fingerprinting not only resist collusion attacks but can also help tracing colluders. This work here by focuses implementation of a hybrid watermarking scheme using SVD and wavelet transform along with coded fingerprinting developed for protection of the intellectual property.