TY - JOUR
T1 - Image integrity and authenticity verification via content-based watermarks and a public key cryptosystem
AU - Li, Chang Tsun
AU - Lou, Der Chyuan
AU - Liu, Jiang Lung
PY - 2003/2
Y1 - 2003/2
N2 - A technique using the inherent feature map of an underlying image as a watermark is proposed in this paper. Firstly, a binary feature map is extracted from the transmitting side as watermark and partitioned into blocks. Secondly, to create a watermarked image, neighboring feature map/watermark blocks are blended and encrypted for insertion. On the receiving side, the feature map from the received image is extracted once again and compared against the recovered watermark to verify integrity and authenticity. In addition to the capability of detecting geometric transformation, removal of original objects and the addition of foreign objects, the proposed scheme is also capable of localizing tampering and detecting cropping without a priori knowledge about the image. This work may be applicable in the areas of military imagery transmission, imaging of micro evidence from crime scenes, and medical image archiving.
AB - A technique using the inherent feature map of an underlying image as a watermark is proposed in this paper. Firstly, a binary feature map is extracted from the transmitting side as watermark and partitioned into blocks. Secondly, to create a watermarked image, neighboring feature map/watermark blocks are blended and encrypted for insertion. On the receiving side, the feature map from the received image is extracted once again and compared against the recovered watermark to verify integrity and authenticity. In addition to the capability of detecting geometric transformation, removal of original objects and the addition of foreign objects, the proposed scheme is also capable of localizing tampering and detecting cropping without a priori knowledge about the image. This work may be applicable in the areas of military imagery transmission, imaging of micro evidence from crime scenes, and medical image archiving.
KW - Cryptosystem
KW - Digital watermarking
KW - Information security
UR - http://www.scopus.com/inward/record.url?scp=0037331915&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:0037331915
SN - 1023-4462
VL - 10
SP - 99
EP - 106
JO - Journal of the Chinese Institute of Electrical Engineering, Transactions of the Chinese Institute of Engineers, Series E/Chung KuoTien Chi Kung Chieng Hsueh K'an
JF - Journal of the Chinese Institute of Electrical Engineering, Transactions of the Chinese Institute of Engineers, Series E/Chung KuoTien Chi Kung Chieng Hsueh K'an
IS - 1
ER -