Lossless Data Hiding Technique using Reversible Function
نویسندگان
چکیده
منابع مشابه
Lossless Data Hiding Technique using Reversible Function
The most of the previous lossless data hiding techniques are that secret data are embedded into cover image. So, the relationship between the embedding capacity and PSNR of these techniques is always an inverse proportion. In contrast, the embedded position information of secret data are embedded into a location map in the proposed technique in order to achieve thedirectly proportional relation...
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Recently, more and more importance is given to reversible data hiding (RDH) technique in images, since it has the capability of recovering the original image which is used for embedding data, without loss protecting the image content’s confidentiality. All previous methods embed data by reversibly vacating room from the images, which may be subject to some errors on data extraction and/or image...
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Reversible Data hiding is a process of hiding information into a cover image. There are various techniques used for hiding secret data. Audio, video, image, text, and picture can be used as a cover medium in data hiding. In images, Reversible Data Hiding (RDH) is a method which is very helpful in the recovery of original cover after the inserted message is extracted. This vital method is broadl...
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I. INTRODUCTION Image Authentication is used to evidence that image is really what the user deems it is. For example, during image watermarking of patient's diagnostic image may occur errors in diagnosis and treatment, which may direction to possible life-blusterous outcome. Thus, to take over the problem of happening of artefacts and to making zero distorted or noise free watermarked medical i...
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This paper presents a novel reversible data-embedding method for digital images using integer wavelet transform and companding technique. This scheme takes advantage of the Laplacian-like distribution of integer wavelet coefficients in high frequency subbands, which facilitates the selection of compression and expansion functions and keeps the distortion small between the marked image and the o...
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ژورنال
عنوان ژورنال: International Journal of Security and Its Applications
سال: 2014
ISSN: 1738-9976,1738-9976
DOI: 10.14257/ijsia.2014.8.1.36