'Secret image' presentation slideshows

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?????. Chair Professor Chin-Chen Chang ( ??? ) National Tsing Hua University ( ???? ) National Chung Cheng University ( ???? ) Feng Chia University ( ???? ) http://msn.iecs.fcu.edu.tw/~ccc. Outlines. Concept of Secret Sharing Concept of visual cryptography

552 views • 42 slides

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?????. Chair Professor Chin-Chen Chang ( ??? ) National Tsing Hua University ( ???? ) National Chung Cheng University ( ???? ) Feng Chia University ( ???? ) http://msn.iecs.fcu.edu.tw/~ccc. Outlines. Concept of Secret Sharing Concept of visual cryptography

442 views • 42 slides

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??????????. Chair Professor Chin-Chen Chang Feng Chia University National Chung Cheng University National Tsing Hua University. Multimedia (Watermarking). Classifications: Visible watermarking Invisible watermarking Robust watermarking Semi-fragile watermarking Fragile watermarking.

424 views • 41 slides

Embedding Secrets in Digital Images and Their Compression Codes ???????????????????

Embedding Secrets in Digital Images and Their Compression Codes ???????????????????. Advisor: Chin-Chen Chang 1, 2 Student: Yi-Pei Hsieh 2. 1 Dept. of Information Engineering and Computer Science, Feng Chia University

367 views • 35 slides

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??????????. ??? ???? ???? ???? ???? ???? ????. W atermarking Image authentication Secret sharing Visual cryptography Steganography. Watermarking. Visible watermarking Easy to embed Clear to see watermark. Watermarking (Cont.). Invisible watermarking Requirements:

446 views • 24 slides

Multiple-Image Encryption by Rotating Random Grids

Multiple-Image Encryption by Rotating Random Grids. Authors: Tzung-Her Chen, Kai-Hsiang Tsao, and Kuo-Chen Wei Source: Proceedings of The 8th International Conference on Intelligent System Design and Applications (ISDA 2008) ?????? P78011044 ??? P76011242 Date: 2013/01/18. Outline.

348 views • 18 slides

A novel authenticatable color visual secret sharing scheme using non-expanded meaningful shares

A novel authenticatable color visual secret sharing scheme using non-expanded meaningful shares. D-C Lou, H-H Chen, H-C Wu, C-S Tsai, Displays, 2011. Speaker: K. Chen 2011.4.21. IF=0.812. The proposed scheme simultaneously achieves the specialties of meaningful share images

283 views • 13 slides

BPCS Steganography Implementation

346 views • 9 slides

Random-Grid-Based Visual Cryptography Schemes

This paper discusses a random-grid-based non expanded visual cryptography scheme for generating both meaningful and noise-like shares. First, the distribution of black pixels on the share images and the stack image is analyzed. A probability allocation method is then proposed that is capable of producing the best contrast in both the share images and the stack image. Contact Us 91 98406 78906, 91 90037 18877 kaashiv.info@gmail.com www.kaashivinfotech.com Shivanantha Building (Second building to Ayyappan Temple), X41, 5th Floor, 2nd avenue, Anna Nagar,Chennai-40

420 views • 9 slides

Image Sharing By Chinese Remainder Theorem

Image Sharing By Chinese Remainder Theorem. Group S: S1, S2, S3 Institute of Information Systems & Applications National Tsing Hua University Hsinchu 30013, Taiwan E-mail: 104062613@m104.nthu.edu.tw. Abstract ( ?? ).

141 views • 8 slides

Verifiable visual cryptography

Verifiable visual cryptography. Shuo -Fang Hsu, Yu- Jie Chang, Ran- Zan Wang, Yeuan-Kuen Lee, Shih-Yu Huang 2012 sixth international conference on genetic and evolutionary computing. (a) Secret image. (b) Tag image 1. (c) Tag image 2. Share 1. Share 2. Recovered secret image.

220 views • 7 slides

Verifiable visual cryptography

Verifiable visual cryptography. Shuo -Fang Hsu, Yu- Jie Chang, Ran- Zan Wang, Yeuan-Kuen Lee, Shih-Yu Huang 2012 sixth international conference on genetic and evolutionary computing. (a) Secret image. (b) Tag image 1. (c) Tag image 2. Share 1. Share 2. Recovered secret image.

178 views • 7 slides