One of the solutions to deter copyright violations consists of embedding hard to detect watermarks in digital media. Current developments have focused on how to embed watermarks, ...
Media hashing is an alternative to achieve many applications previously accomplished with watermarking. The major disadvantage of the existing media hashing technologies is their ...
Ramarathnam Venkatesan, S.-M. Koon, Mariusz H. Jak...
—The pervasive distribution of digital images triggers an emergent need of authenticating degraded images by lossy compression and transmission. This paper proposes a robust cont...
Abstract. In this paper, we propose an image moment-based geometric normalization to be applied before embedding and extracting a digital watermark in the DWT-domain of JPEG2000. A...
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...