propose a novel integrated approach to quantitative semi-fragile authentication
of JPEG2000 images under a generic framework which combines ECC and PKI
infrastructures. Firstly acceptable manipulations (e.g., re-encoding)
which should pass authentication are defined based on considerations of
some target applications. We propose a unique concept of lowest authenticable
bit rate images undergoing repetitive reencoding are guarantee
to pass authentication provided the re-encoding rates are above the lowest
allowable bit rate. Our solutions include computation of content-based
features derived from the EBCOT encoding procedure of JPEG2000, error
correction coding of the derived features, PKI cryptographic signing,
and finally robust embedding of the feature codes into image as watermarks.
Q. Sun, S.-F. Chang,
M. Kurato and M. Suto, A quantative semi-fragile JPEG2000 image authentication
system, ICIP2002, Rochester, USA, 2002.
Q. Sun, S.-F. Chang, M. Kurato
and M. Suto, A
new semi-fragile image authentication framework combining ECC and PKI,
Invited paper for Special Session on Multimedia Watermarking, ISCAS2002,
Phoenix, USA, 2002.
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Last updated: June 12, 2002.