TY - GEN
T1 - Reversible fragile watermarking based on pyramidal structure and gradient predicting image
AU - Yeh, F. H.
AU - Lee, G. C.
AU - Chiang, C. C.
PY - 2007
Y1 - 2007
N2 - The purpose of this research lies in the development of a reversible fragile watermarking scheme that not only can restore the original image but can also both correctly identify and localize unauthorized manipulations to a protected image. The similarities among the detail components of a pyramid-structure image are exploited to select appropriate embedding areas, and then the cryptographic watermarks are embedded into selected wavelet coefficients using a difference-expansion method. No extra space is required to store the watermark information, watermarks and watermark location map. Experimental results show that the proposed scheme can successfully obtain original image if protected image is unaltered, and unauthorized manipulations can be correctly identified and localized even when protected images undergoes a cropping attack.
AB - The purpose of this research lies in the development of a reversible fragile watermarking scheme that not only can restore the original image but can also both correctly identify and localize unauthorized manipulations to a protected image. The similarities among the detail components of a pyramid-structure image are exploited to select appropriate embedding areas, and then the cryptographic watermarks are embedded into selected wavelet coefficients using a difference-expansion method. No extra space is required to store the watermark information, watermarks and watermark location map. Experimental results show that the proposed scheme can successfully obtain original image if protected image is unaltered, and unauthorized manipulations can be correctly identified and localized even when protected images undergoes a cropping attack.
UR - http://www.scopus.com/inward/record.url?scp=47349132938&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47349132938&partnerID=8YFLogxK
U2 - 10.1109/IIH-MSP.2007.269
DO - 10.1109/IIH-MSP.2007.269
M3 - Conference contribution
AN - SCOPUS:47349132938
SN - 0769529941
SN - 9780769529943
T3 - Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
SP - 311
EP - 314
BT - Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
T2 - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007
Y2 - 26 November 2007 through 28 November 2007
ER -