Results 291 to 300 of about 21,428 (321)
Some of the next articles are maybe not open access.
A HDWT-based reversible data hiding method
Journal of Systems and Software, 2009This paper presents a reversible data hiding method which provides a high payload and a high stego-image quality. The proposed method transforms a spatial domain cover image into a frequency domain image using the Haar digital wavelet transform (HDWT) method, compresses the coefficients of the high frequency band by the Huffman (or arithmetic) coding ...
Yung-Kuan Chan +5 more
openaire +1 more source
Information Protection and Recovery with Reversible Data Hiding
Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2007), 2007We propose an effective scheme for protecting and recovering sensitive information based on reversible data hiding techniques in this paper. It is commonly seen that confidential information within an image is deliberately removed, marked or mosaicked before being delivered to the public, including displaying the marked images on the TV screens or ...
Hsiang-Cheh Huang +3 more
openaire +1 more source
2019
The chapter presents an application of reversible data hiding for the authentication of image travelling over a hostile and insecure communication channel. The reversible data resides in the image and tracks any changes done to it on a communication channel. The extraction of data and any modification to its structure reveals changes in the image. This
openaire +1 more source
The chapter presents an application of reversible data hiding for the authentication of image travelling over a hostile and insecure communication channel. The reversible data resides in the image and tracks any changes done to it on a communication channel. The extraction of data and any modification to its structure reveals changes in the image. This
openaire +1 more source
Capacity bounds and constructions for reversible data-hiding
2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628), 2003An undesirable side effect of many watermarking and data-hiding schemes is that the host signal into which auxiliary data is embedded is distorted. Finding an optimal balance between the amount of information embedded and the induced distortion is therefore an active field of research.
Kalker, A.A.C.M., Willems, F.M.J.
openaire +1 more source
Reversible Data Hiding in Pairwisely Encrypted Images
2016 Third International Conference on Computing Measurement Control and Sensor Network (CMCSN), 2016This work proposes a novel separable method for encrypted images. The input image is encrypted first via a pairwise encryption scheme. Then the data bits can be embedded into the pairwisely encrypted image by the well-known difference-expansion technique.
Jen-Chun Chang +3 more
openaire +1 more source
An improved reversible data hiding in encrypted images
2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP), 2015This paper is an improved version of Zhang's reversibility improved data hiding method in encrypted images. The original work randomly selects p%(0 < p ≤ 20) pixels from an original image to obtain the estimation error for secret data embedding. In this work, we estimate half of the pixels in the original image to obtain the estimation error so that ...
Shuang Yi, Yicong Zhou
openaire +1 more source
Improved PVO-based reversible data hiding
Digital Signal Processing, 2014This work extends a recently proposed reversible data hiding (RDH) scheme of Li et al. which is based on pixel-value-ordering and prediction-error expansion. In Li et al.?s method, the maximum and minimum of a pixel block are predicted and modified to embed data.
Fei Peng 0001 +2 more
openaire +1 more source
Reversible Data Hiding in Palette Images
IEEE Transactions on Circuits and Systems for Video Technology, 2023Mingji Yu +3 more
openaire +1 more source
A Reversible Data Hiding Scheme for JPEG Images
2010When JPEG images are used as cover objects for data hiding, many existing techniques require the images to be fully or partially decompressed before embedding. This makes practical application of these methods limited. In this paper, we investigate ways to hide data in the compressed domain directly and efficiently, such that both the original content ...
Qiming Li, Yongdong Wu, Feng Bao 0001
openaire +1 more source
Capacity-Approaching Codes for Reversible Data Hiding
2011By reversible data hiding, the original cover can be losslessly restored after the embedded information is extracted. Kalker and Willems established a rate-distortion model for reversible data hiding, in which they proved the capacity bound and proposed a recursive code construction.
Weiming Zhang 0001 +2 more
openaire +1 more source