منابع مشابه
A Digital Watermark
This paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512*512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation. This capability is envisaged to find application in image tagging, copyright enforcement, counterfeit pro...
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Digital watermarking has emerged as an enabling technology for protecting intellectual property rights of digital information. However, the effectiveness of digital watermarking relies on the efficient detection of watermarks from huge amount of documents in cyberspace. Digital watermark agent provides an efficient solution. A digital watermark agent travels from host to host on a network and a...
متن کاملA watermark for digital images
The growth of networked multimedia systems has magnified the need for image copyright protection. One approach used to address this problem is to add an invisible structure to an image that can be used to seal or mark it. These structures are known as digital watermarks. In this paper we describe two techniques for the invisible marking of images. We analyze the robustness of the watermarks wit...
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Digital watermarks have been proposed as a method for discouraging illicit copying and distribution of copyright material. This paper presents a new approach for the secure and robust copyright protection of digital images. The digital watermarks described in this paper are designed to be, as far as possible, invariant against image transformations such as rotation, translation, scaling and cro...
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ژورنال
عنوان ژورنال: The Journal of The Institute of Image Information and Television Engineers
سال: 2016
ISSN: 1342-6907,1881-6908
DOI: 10.3169/itej.70.135