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Media hashing is a compact representation of media content, one potential application of which is for content-based information retrieval. In the earlier work [13], the invariance of the spatial-domain histogram in shape to geometric deformations has been successfully exploited for image hashing. In this work, we extend the invariance into the discrete wavelet transform (DWT) domain to make this hashing...
A new barcode watermarking algorithm in Discrete Wavelet Transform (DWT) domain is proposed. The algorithm utilizes the visual masking and texture characteristics of Human Visual System (HVS) to achieve the invisible and robust requirements for watermarking. In addition, a barcode which consist vertical bars and numbers is taken as the watermark embedded into the host image. Numbers in the barcode...
In this paper, a novel dynamic video watermarking is proposed. It takes full advantage of motion information of video content to guarantee the perceptual invisibility and robustness of the watermark. A major advantage of this technique is that the watermark is no longer at a fixed position on the screen, but moves along with moving coefficients. Embedding and extraction of the watermark are based...
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