alexa Optimal Reserving Room Based Reversible Data Hiding In
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Special Issue Article

Optimal Reserving Room Based Reversible Data Hiding In Encrypted Images

 
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Abstract

An undesirable side effect of many water marking and data hiding schemes is that the host signal into which auxiliary data is embedded is distorted. In some applications which hide data into important images, permanent distortion of the image is unacceptable. Eg: X ray images. In these applications, a reversible data hiding method is required. Recently, more attention is paid to reversible data hiding (RDH) in encrypted images, since it maintains the excellent property that the original cover can be losslessly recovered after embedded data is extracted while protecting the image content’s confidentiality. All previous methods embed data by reversibly vacating room from the encrypted images, which may be subject to some errors on data extraction and/or image restoration. The proposed method consists of first, reserving the room for embedding the data, so that it is easy for the data hider to reversibly embed data in the encrypted image; then encryption of the image and finally embedding of data. The proposed method can achieve real reversibility, that is, data extraction and image recovery are free of any error. Existing method has low attack resistance due to inefficient selection of reserving room and low PSNR for embedded image. So for increasing attack resistance here proposes a Genetic algorithm based optimal reserving room selection for data hiding.

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