Reversible watermarking using a perceptual model
نویسندگان
چکیده
منابع مشابه
Reversible watermarking using a perceptual model
During data hiding, distortions are introduced in an original image because of quantization errors, bit-replacement, or truncation at the grayscale limit. These distortions are irreversible and visible which are unacceptable in some applications like medical imaging. However, the reversible watermarking technique overcomes this problem by retrieving the original image from the watermarked image...
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In most reversible watermarking methods, a compressed location map is exploited in order to ensure reversibility. Besides, in some methods, a header containing critical information is appended to the payload for the extraction and recovery process. Such schemes have a highly fragile nature; that is, changing a single bit in watermarked data may prohibit recovery of the original host as well as ...
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Infectious video watermarking (IVW) is to embed the first watermark in encoder/decoder for the protection of video contents and to infect the watermark in different codecs whenever video contents are copied or edited. This paper presents an infectious reversible video watermarking for fast infection in the infectious watermarking model (IWM). Our method is designed by following main features. T...
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In this paper the design and implementation of image watermarking algorithm called reversible contrast mapping (RCM) is given. Watermarking is to embed the one important information into the cover media to provide the security to data. Reversible watermarking is one of the important scheme of the watermarking which is useful when reconstruction of original image from watermarked data is necessa...
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Biometric security is a fast growing area. Protecting biometric data is very important since it can be misused by attackers. In order to increase security of biometric data there are different methods in which watermarking is widely accepted. A more acceptable, new important development in this area is reversible watermarking in which the original image can be completely restored and the waterm...
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ژورنال
عنوان ژورنال: Journal of Electronic Imaging
سال: 2005
ISSN: 1017-9909
DOI: 10.1117/1.1877523