Digital watermarking for advanced image and video coding standards
Gang Qiu · 2005
Digital watermarking is a promising technology for intellectual property rights (IPR) protection of various digital media, including e-books, audio, games, photographs, videos, and others.It complements traditional encryption-based digital rights management (DRM) systems by hiding imperceptible but persistent identification information, known as watermarks, into the media to be protected.This makes it very attractive for copyright control, file tracing, broadcast monitoring, authentication, etc.Most of the time, media contents are sold and transmitted in compliant with international compression/coding standards.Researchers are therefore motivated to propose watermarking techniques aligned with popular coding standards.In this thesis, we will focus on two of the most common media types: image and video.New techniques for digital watermarking have been investigated, developed and implemented for the JPEG-2000 image compression standard and the H.264/AVC video coding standard.JPEG-2000 adopts the discrete wavelet transform (DWT) for efficient compression instead of the discrete cosine transform (DCT) featured in the conventional JPEG standard.Moreover, new features like seamless scalability, progressiveness up to lossless compression, and region-of-interest coding are sup ported by the Embedded Block Coding with Optimized Truncation (EBCOT) algorithm.Therefore, we are motivated to take into account the DWT coefficients and EBCOT for watermarking applications and consequently propose ...