Security for Watermark Image
نویسندگان
چکیده
منابع مشابه
A hierarchical image authentication watermark with improved localization and security
Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to improve security. Using a hierarchical structure, we propose a method that thwarts the VQ attack while sustaining the superior localization properties of blockwise independent watermarking methods. In particular, we propo...
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Digital watermarking is a process of embedding unobtrusive marks or labels into digital content. These embedded marks are typically imperceptible (invisible) that can later be detected or extracted. This paper describes watermarking process and attacks on watermarks. Also a focus is made on various techniques of implementing watermarks. In general, any watermarking scheme consists of three part...
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ژورنال
عنوان ژورنال: INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY
سال: 2013
ISSN: 2278-5612
DOI: 10.24297/ijmit.v3i1.4645