An effective SVD-based image tampering detection and self-recovery using active watermarking
作者：
Highlights：
• A novel SVD-based image tamper detection and self-recovery by active watermarking is proposed.
• A new aspect of singular values for each image׳s block is utilized to improve the detection rate.
• The combination of 4×4 and 2×2 block sizes improved the recovered image׳s quality.
• The proposed optimizations improved the scheme’s security against several malicious attacks.
• The results showed the superiority of the algorithm in terms of accuracy, security and recovery.
摘要
Highlights•A novel SVD-based image tamper detection and self-recovery by active watermarking is proposed.•A new aspect of singular values for each image׳s block is utilized to improve the detection rate.•The combination of 4×4 and 2×2 block sizes improved the recovered image׳s quality.•The proposed optimizations improved the scheme’s security against several malicious attacks.•The results showed the superiority of the algorithm in terms of accuracy, security and recovery.
论文关键词：SVD,Tamper localization,Self-recovery,Image security,Active watermarking
论文评审过程：Received 10 June 2014, Revised 13 September 2014, Accepted 15 September 2014, Available online 22 September 2014.
论文官网地址：https://doi.org/10.1016/j.image.2014.09.001
