Reversible Image Watermarking Algorithm Based on Quadratic Difference Expansion
نویسندگان
چکیده
منابع مشابه
Reversible Watermarking by Difference Expansion
Reversible watermark has drawn lots of interest recently. Different from other types of digital watermarks, a reversible watermark has a special feature that the original digital content can be completely restored. In this paper we describe a high capacity and high quality reversible watermarking method based on difference expansion. A noticeable difference between our method and others is that...
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In this paper, a new reversible watermarking scheme resistant to geometrical attacks is presented. The proposed scheme does not need the original image for extracting the watermark, and induces not noticeable distortion during the watermarking procedure. The embedding algorithm has low computational complexity, can be applied to very small images (down to 16 x 16), and provides capabilities of ...
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Wireless sensor networks are self-organized and data-centric. Sensors are typically operated in uncontrolled and possibly hostile environment. Watermark technology has been used for integrity and copyright protection. Some specific application scenarios, such as military, telemedicine and satellite remote sensing, are strict with data integrity and accuracy. They do not allow any change and mus...
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ژورنال
عنوان ژورنال: Mathematical Problems in Engineering
سال: 2020
ISSN: 1024-123X,1563-5147
DOI: 10.1155/2020/1806024