RT Journal T1 Images tamper detection and recovery based on block features and chaotic sequence A1 ZHANG Junpeng, ZHANG Qingfan, YANG Hongjuan PB Journal of Shandong University(Engineering Science) FD 2014-12-20 YR 2014 JF Journal of Shandong University(Engineering Science) JO Journal of Shandong University(Engineering Science) VO 44 IS 6 SP 63 DO 10.6040/j.issn.1672-3961.0.2014.098 K1 image authentication;digital watermarking;tamper detection;self-recovery;chaos LK {http://gxbwk.njournal.sdu.edu.cn/EN/article/article_662.shtml}