نتایج جستجو برای: rdh

تعداد نتایج: 176  

2016
Gaurav Suryawanshi

Now-a-days peoples give more attention while transmitting secure data. For that Reversible Data Hiding algorithm is mostly preferred since it maintains the property that the original image is recovered from encrypted image and embedded data without analysis into it. But the existing method embeds data by reversibly vacating room from encrypted images, which will further leads to the loss of dat...

2014
D.RAJSHEKAR REDDY

New, more and more aid is square to reversible data hiding (RDH) in encrypted images, since it maintains the fantabulous property that the germinal conceal can be losslessly recovered after embedded data is extracted while protecting the person proportionality's confidentiality. All early methods embed assemblage by reversibly vacating space from the encrypted images, which may be thing to both...

2013
Anagha Markandey Pragati Patil

Now a days there is very big problem of data hacking into the networking era. There are number of techniques available in the industry to overcome this problem. So, data hiding in the encrypted image is one of the solution, but the problem is the original cover cannot be losslessly recovered by this technique. That’s why Recently, more and more attention is paid to reversible data hiding (RDH) ...

2014
Cheenu Bansal Preeti Gupta

Page | 60 Capacity Enhancement of Reversible Data Hiding Technique Using Adaptive Embedding Cheenu Bansal, Preeti Gupta ABSTRACT: Reversible data hiding is current research area in field of data hiding. Reversible data hiding is defined as the process of hiding secret data in such a way that at receiver side both secret message and cover image can be recovered. This kind of reversibility is req...

2016
Ruiqi Jiang Weiming Zhang Jiajia Xu Nenghai Yu Xiaocheng Hu

Recently, a novel reversible data hiding scheme is proposed for contrast enhancement by Wu (IEEE Signal Process Lett 22.1:81–85, 2015). Instead of pursuing the traditional high PSNR value, he designs the message embedding algorithm to enhance the contrast of the host image. In this paper, an extended scheme is proposed to not only adaptively enhance the contrast of the image, but also to keep t...

2002
Masoud Nosrati Ronak Karimi Mehdi Hariri

In this paper, we are going to have a survey on one of data hiding techniques called "Reversible Data Hiding (RDH)". Due to this, basic principles and notions of RHD are introduced. Also, primary techniques as the principles of RHD are talked. They are: Pair-Wise Logical Computation (PWLC) data hiding technique and Data Hiding by Template ranking with symmetrical Central pixels (DHTC) technique...

2013
Zafar Shahid William Puech

This paper presents an efficient method for high payload reversible data-hiding in H.264/AVC intra bitstream with a minimal drift, which is controllable and proportional to the payload. In contrast to previously presented open-loop reversible data hiding techniques for H.264/AVC bitstream, which mainly perform drift-compensation, we propose a new reversible data hiding technique for H.264/AVC i...

Journal: :Journal of radiation research 2003
Takako Takanami Yongzhao Zhang Hidetoshi Aoki Tomoko Abe Shigeo Yoshida Hideyuki Takahashi Saburo Horiuchi Atsushi Higashitani

The effects of heavy ion particle irradiation on meiosis and reproductive development in the nematode Caenorhabditis elegans were studied. Meiotic pachytene nuclei are significantly resistant to particle irradiation by the heavy ions carbon and argon, as well as to X-rays, but not UV, whereas diplotene to diakinesis stage oocytes and early embryonic cells are not. Chromosomal abnormalities appe...

Journal: :Security and Communication Networks 2022

Most reversible data hiding (RDH) schemes embed into JPEG images through DCT coefficients modification, but they will cause unavoidable visual distortion in the marked images. Lossless (LDH) can not only restore cover a lossless way after extraction of embedded also generate without any distortion. For LDH based on variable length code (VLC) mapping, performance depends mainly mapping mode. In ...

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