SECURITY ENHANCEMENTS OF DIGITAL WATERMARKS FOR MULTI-MEDIA CONTENT

摘要

Methods and apparatus for embedding digital watermarks into a digital host content are provided. A digital host content is received, e.g., at a receive r or other device incorporating a receiver. One or more watermark embedding technologies is selected. Multiple embedding opportunities are identified within the host content. A subset of the identified embedding opportunities is selected. A multiplicity of digital watermarks are then embedded into the ho st content in accordance with the selected subset of embedding opportunities utilizing the one or more selected watermark embedding technologies. The selecting of the subset of embedding opportunities may be adapted to provide a desired tradeoff between levels of robustness, security, and transparency of the watermark. A plurality of watermarking embedding technologies may be selected and used in the embedding step.