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Data Hiding with contrast enhancement by using RDH Algorithm
Ashwini R. Gaykar,  Prof. S.M.Rokade
Now a days more and more attention is paid to reversible data hiding (RDH) for encrypted images, since it gives the benefit that the original cover can be losslessly recovered after embedded data is extracted and as well as protects the image content’s confidentiality. Instead of trying to keep the PSNR value high, the proposed algorithm enhances the contrast of a host image to improve its visual quality. the algorithm achieves image contrast enhancement by RDH. The highest two bins in the histogram are selected for data embedding so that histogram equalization can be performed by repeating the process. The side information is embedded along with the message bits into the host image so that the original image is completely recoverable .Reversible data hiding (RDH) algorithm is proposed for digital images.
Keywords- Reversible data hiding, Histogram data modification, Image Encryption,Contrast enhancement
Unique Identification Number - IJEDR1601025Page Number(s) - 145-149Pubished in - Volume 4 | Issue 1 | February 2016DOI (Digital Object Identifier) -    Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Ashwini R. Gaykar,  Prof. S.M.Rokade,   "Data Hiding with contrast enhancement by using RDH Algorithm"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 1, pp.145-149, February 2016, Available at :http://www.ijedr.org/papers/IJEDR1601025.pdf