supported by the National Natural Science Foundation of China(No.60502039,No.60773079,No.60872116);the"863"National High-Tech Research and Development Program of China(No.2007AA01Z477)
supported by the National Natural Science Foundation of China(Grant No.60502039),the Shanghai Rising-Star Program(Grant No.06QA14022),and the Key project of Shanghai Municipality for Basic Research (Grant No.04JC14037)
The easy generation, storage, transmission and reproduction of digital images have caused serious abuse and security problems. Assurance of the rightful ownership, integrity, and authenticity is a major concern to the...
Project supported by the National Natural Science Foundation of China (Grant Nos.60372090, 60502039), and the Key Project of Shanghai Municipality for Basic Research (Grant No.04JC14037)
We present a novel scheme for embedding secret data into a binary image without introducing noticeable artifacts. Unlike some block-based methods, the proposed scheme encodes the secret bits directly into boundary pix...
Project supported by the National Natural Science Foundation of China (Grant No.60502039), the Shanghai Rising-Star Program (Grant No.06QA14022), and the Key Project of Shanghai Municipality for Basic Research (Grant No.04JC14037)
In this work, image feature vectors are formed for blocks containing sufficient information, which are selected using a singular-value criterion. When the ratio between the first two SVs axe below a given threshold, t...