Image analysis – Applications
Reexamination Certificate
2006-05-16
2006-05-16
Wu, Jingge (Department: 2623)
Image analysis
Applications
C358S003280
Reexamination Certificate
active
07046820
ABSTRACT:
The computer analyzes a representation of a digitized image to determine contiguous edges of the image; select edges for modulation in accordance with a data hiding criterion; apply a watermark-dependent edge point modulation to pixels on the selected edges; and wherein said analyzing to determine contiguous edges produces lists of pixel pointers, each list containing pointers to pixel locations of a contiguous edge; and wherein said criterion selects lists corresponding to low contrast, low smoothness edges.
REFERENCES:
patent: 5073925 (1991-12-01), Nagata et al.
patent: 5915027 (1999-06-01), Cox et al.
patent: 6181802 (2001-01-01), Todd
patent: 2002/0015508 (2002-02-01), Hannigan et al.
patent: 2002/0191812 (2002-12-01), Kim
patent: 2003/0202678 (2003-10-01), Silverstein
U.S. Appl. No. 09/427,321, filed Oct. 26, 1999, Yu et al.
U.S. Appl. No. 09/691,544, filed Oct. 18, 2000, Yu et al.
M. Ramkumar, A.N. Akansu: “Information Theoretic Bounds for Data Hiding in Compressed Images”, IEEE 2nd Multimedia Signal Processing Workshop, 1998, 6 pages.
I. Cox, J. Kilian, T. Leighton, T. Shamoon: “Secure Spread Spectrum Watermarking for Multimedia”, NEC Research Institute, Technical Report 95-10, 33 pages, 1995.
C. Podilchuk, W. Zeng: “Image Adaptive Watermarking Using Visual Models”, IEEE Journal Selected Areas of Communications (JSAC), vol. 16, No. 4, pp. 525-539, May, 1998.
A. Herrigel, J.O Ruanaidh, H. Pertersen, S. Pereira, T. Pun: “Secure Copyright Protection Techniques for Digital Images”, Second Info. Hiding Workshop, 1998, 22 pages.
W. Zeng, B. Liu: “On Resolving Rightful Ownership of Digital Images by Invisible Watermarks”, ICIP, 1997, 4 pages.
E. Koch, J. Zhao: “Towards Robust and Hidden Image Copyright Labeling”, IEEE Workshop on Nonlinear Signal and Image Processing, Neos Marmaras, Greece, 4 pages, Jun. 20-22, 1995.
M.D. Swanson, B. Zhu, A.H. Tewfik: “Robust Data Hiding for Images”, IEEE DSP Workshop (DSP 96), Loen, Norway, pp. 37-40, Sep. 1996.
W.Zeng, B. Liu, S. Lei: “Extraction of Multiresolution Watermark Images for Resolving Rightful Ownership”, Electronic Imaging '99, Proc. of SPIE, vol. 3657, 11 pages, 1999.
M. Wu, B. Liu: “Digital Watermarking Using Shuffling”, 5 pages, date not available.
Harness Dickey & Pierce PLC
Mackowey Anthony
Wu Jingge
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