Blockwise Reversible Data Hiding by Contrast Mapping
نویسندگان
چکیده
منابع مشابه
Reversible Data Hiding Using Contrast Enhancement Approach
Reverse Data Hiding is a technique used to hide the object's data details. This technique is used to ensure the security and to protect the integrity of the object from any modification by preventing intended and unintended changes. Digital watermarking is a key ingredient to multimedia protection. However, most existing techniques distort the original content as a side effect of image protecti...
متن کاملReversible Data Hiding by Histogram Modification for Image Contrast Enhancement
© 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 761 REVERSIBLE DATA HIDING BY HISTOGRAM MODIFICATION FOR IMAGE CONTRAST ENHANCEMENT Silpa Rajan1, Minu Lalitha Madhavu2 1Silpa Rajan, Pursuing Mtech at Sree Buddha college of Engineering , Pattoor, Kerala, India 2Minu Lalitha Madhavu , Assistant Professor , Dept. of Computer Science Engineering, Sree Buddha Colle...
متن کاملReversible Image Data Hiding with Local Adaptive Contrast Enhancement
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...
متن کاملEnsemble Reversible Data Hiding
The conventional reversible data hiding (RDH) algorithms often consider the host as a whole to embed a payload. In order to achieve satisfactory rate-distortion performance, the secret bits are embedded into the noise-like component of the host such as prediction errors. From the rate-distortion view, it may be not optimal since the data embedding units use the identical parameters. This motiva...
متن کاملReversible Data Hiding
Reversible data hiding, in which the stago-media can be reversed to the original cover media exactly, has attracted increasing interests from the data hiding community. In this study, the existing reversible data hiding algorithms, including some newest schemes, have been classified into three categories: 1) Those developed for fragile authentication; 2) Those developed for achieving high data ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Information Technology Journal
سال: 2009
ISSN: 1812-5638
DOI: 10.3923/itj.2009.1287.1291