Results 251 to 260 of about 12,645,268 (293)

A hierarchical threshold secret image sharing

Pattern Recognition Letters, 2012
In the traditional secret image sharing schemes, the shadow images are generated by embedding the secret data into the cover image such that a sufficient number of shadow images can cooperate to reconstruct the secret image. In the process of reconstruction, each shadow image plays an equivalent role. However, a general threshold access structure could
Cheng Guo, Chuan Qin, Chin-Chen Chang
exaly   +2 more sources

Secret image sharing

Computers & Graphics, 2002
Abstract In this paper, we propose a method such that a secret image is shared by n shadow images, and any r shadow images (r⩽n) of them can be used to restore the whole secret image. The size of each shadow image is smaller than the secret image in our method.
Chih-Ching Thien, Ja-Chen Lin
openaire   +2 more sources

An Image Secret Sharing Method

2006 9th International Conference on Information Fusion, 2006
This paper presents an image secret sharing method which essentially incorporates two k-out-of-n secret sharing schemes: i) Shamir's secret sharing scheme and ii) matrix projection secret sharing scheme. The technique allows a secret image to be divided as n image shares so that: i) any k image shares (k ? n) can be used to reconstruct the secret image
Li Bai 0002, Saroj Biswas, Albert Ortiz, Don Dalessandro   +3 more
openaire   +1 more source

Progressive sharing for a secret image

Journal of Systems and Software, 2010
Based on the wavelet transform, a new progressive sharing scheme is proposed to share a secret image into several shadow images using SPIHT encoding processes and Shamir's threshold scheme. Quality refinement of the recovered image is achieved by the data consumed from the threshold number (r) of shadow images and each single shadow image reveals no ...
Chin-Pan Huang, Chaur-Heh Hsieh, Ping Sheng Huang   +2 more
openaire   +2 more sources

An Image Secret Sharing Scheme with the Capability of Previvewing the Secret Image

Multimedia and Expo, 2007 IEEE International Conference on, 2007
Some (k, n)-threshold image secret sharing schemes encrypt the secret image into n noise-like shadow images with size 1/k times that of the original secret image. The small size of shadow image makes this framework suitable for fast transmission in the distributed multimedia system where each shadow image is stored in the distributed storage node ...
Ching-Nung Yang, Tse-Shih Chen
openaire   +1 more source

Sharing a secret gray image in multiple images

First International Symposium on Cyber Worlds, 2002. Proceedings., 2003
In a traditional visual cryptography scheme, a shared secret image can be revealed with no cryptographic computations. Unfortunately, the revealed secret image of a conventional visual cryptography scheme is almost black and white. Colored visual cryptography schemes based on modified visual cryptography were recently proposed.
Chin-Chen Chang 0001, Tai-Xing Yu
openaire   +1 more source

Multiple secret images in multiple sharing images

SPIE Proceedings, 2012
Internet based communications are evolving at a tremendous rate. Encryption of data has become an important way to protect data resources especially on the Internet, intranets and extranets. Steganography is a process of hiding data inside a sharing medium. A technique of hiding multiple images in multiple sharing images is proposed.
Rajasekar Velswamy, Selvarajan Sellappan, Karthiprem Sengottaiyan, Muthusamy Suganthi   +3 more
openaire   +2 more sources

Invertible secret image sharing with steganography

Pattern Recognition Letters, 2010
The essence of invertible image sharing approaches is that the revealed content of the secret image must be lossless and the distorted stego images must be able to be reverted to the original cover image. In order to achieve these purposes, we first transform the secret pixels into the m-ary notational system and then calculate the information data ...
Pei-Yu Lin, Chi-Shiang Chan
openaire   +2 more sources

A Robust Secret Image Sharing Scheme

2008 First International Conference on Emerging Trends in Engineering and Technology, 2008
Secret sharing is an efficient method of transmitting the image securely. This paper discusses an efficient secret sharing scheme. It has been shown through the experimental result that the proposed scheme transmits the image secretly and then efficiently recovers the same at the receiver end.
Vinay Rishiwal, Mano Yadav, K. V. Arya
openaire   +2 more sources

Relations Between Secret Sharing and Secret Image Sharing

2019
Secret sharing (SS) for (k, n) threshold generates secret data into n shadows, where any k or more shadows can reconstruct the secret while any \(k-1\) or less shadows reconstruct nothing of the secret. SS is useful for cloud computing security, block chain security and so on.
Xuehu Yan, Jinming Li, Yuliang Lu, Lintao Liu, Guozheng Yang, Huixian Chen   +5 more
openaire   +1 more source