[PDF] Top 20 A Lossless Watermarking Scheme for Halftone Image Authentication

... Nowadays, halftone images appear routinely in books, magazines, printer outputs, and fax ...in halftone images for copyright protection and content ...proposes a novel watermarking ... See full document

... 摘要: The article presents a novel fragile watermarking scheme based on the concept of pixel differencing for the integrity verification of digital images.. The scheme uses the human vi[r] ... See full document

... 4.8(e)–(h) for 1–4 iterations, respectively. In the second experiment, a small image set was used to show that our algorithm is robust to incident manipulation, JPEG compression, and sensitive to ... See full document

... Selective authentication service can be grouped into two subgroups, semi-fragile watermarking based solutions [5][23][24][25] and digital-signature based solutions ...Semi-fragile watermarking ... See full document

... constructs a vector quantization codebook with codewords taken directly from the blocks of a set of watermarked ...The image to be counterfeited is then approximated by this ...counterfeit ... See full document

... Internet, image authentication has drawn extensive attention for integrity ...verification. For instance, watermarking fragile to malicious modifications while robust to data ... See full document

... Keywords: Watermarking, Image authentication, Image restoration, Image compres- sion ...more watermarking approaches have been proposed for tam- per detection and ... See full document

... progressive image transmission benefits the applications such as low-band channel or time-critical in which the transmission can be halted according to the user ...partial image should also be authenticated ... See full document

... hiding; image authentication; signature; wet paper codes KeyWords Plus: WATERMARKING; QUANTIZATION Abstract: Image authentication is an important research topic of maintaining the ... See full document

... propose a reversible watermarking technique for lossless authentication of relational ...the scheme takes advantage of the uneven distribution of the error of two ... See full document

... Keywords: image retrieval, copyright notification, watermark 1 Introduction With the development of computer, multimedia and network technologies, the amount of visual information available in digital format has ... See full document

... semifragile watermarking called telltale tamper proofing. They embed a watermark in the discrete wavelet domain of the image by quantizing the corresponding co- ...embedding a watermark in the ... See full document

... In this paper, we propose an image ownership and tampering authentication scheme based on watermarking techniques, which is employed to protect the rightful ownership and detect malic[r] ... See full document

... To achieve tamper detection and image reconstruction, the reconstruction information of an image is self-embedded by block-wise difference expansion lossless watermar[r] ... See full document

... 題名: A New Public-key Oblivious Fragile Watermarking for Image Authentication Using Discrete Cosine Transform.. 作者: Chang, C.[r] ... See full document

... proposed lossless visible watermarking method via PNG ...method, a color host image is firstly transformed into the PNG format with an alpha channel plane, which is a valid color type ... See full document

... Digital Image Watermarking Scheme Chih-Wei Tang and Hsueh-Ming Hang, Fellow, IEEE Abstract—A robust digital image watermarking scheme that combines image feature ... See full document

... Different subimages then get different compression ratios according to the base values of the subimages. In order to increase the compression ratio, a hierarchical technique is also used. It is found that the ... See full document

... of image manipulation. The image synchronization is easily destroyed after parts of image are ...is a kind of fabrication attack on ...within a watermarked image or from ... See full document

... watermarked image fidelity and watermark robustness is an attractive research topic in image ...propose a new image watermarking scheme based on multi-objective bees algorithm to ... See full document