Image analysis – Applications
Reexamination Certificate
2007-01-16
2007-01-16
Mancuso, Joseph (Department: 2627)
Image analysis
Applications
C713S176000
Reexamination Certificate
active
09443239
ABSTRACT:
A method for embedding a watermark into a digital image. The method includes independently changing real number components and imaginary number components of each of coefficient values of a complex watermark coefficient matrix using a key, from the watermark to be embedded in the digital image. The method further includes a step for performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern. The method also includes a step for adding like tiling the water mark pattern to the original image, and generating an embedded image.
REFERENCES:
patent: 6044156 (2000-03-01), Honsinger et al.
patent: 6240121 (2001-05-01), Senoh
patent: 6278791 (2001-08-01), Honsinger et al.
patent: 6314192 (2001-11-01), Chen et al.
patent: 1148708 (2001-10-01), None
patent: 8-016793 (1996-01-01), None
patent: 08030759 (1996-02-01), None
patent: 9-172636 (1997-06-01), None
patent: 10-276321 (1998-10-01), None
patent: 96/36163 (1996-11-01), None
J.J.K. Ruanaidh, et al., “Phase Watermarking of Digital Images”, Lausanne, Sep. 16-19, 1996, New York, IEEE, US, pp. 239-242, XP000199952 ISBN: 0-7803-3259-8, the whole document.
Piva et al.: “DCT-based Watermark Recovering without Resorting to the Uncorrupted Orignal Image”, Proceedings of the 1997 International Conference on Image Processing (ICIP'97),1997.
Takao Nakamura, Hiroshi Ogawa, Youichi Takashima,:“A Watermark Technique for Still Images” NTT Review vol. 11, No. 1, Jan. 1999.
Wisetsuit Piyapisuit, Kineo Matsui,: “Block Characteristic in Color Image Watermarking Using Equivalent Signal Transform” National Conference of the Institute of Electronics, Information and Communication Engineers, D-11-42, 1999 (content of this document is described in the specification in pp. 4 and 5).
Miyagawa et al., :“Symbol Logic”, Shokodoh, pp. 128-135. (This document describes general technology relating to “M-sequence generator” and the like).
Nakamura Takao
Ogawa Hiroshi
Takashima Youichi
Tomioka Atsuki
Kenyon & Kenyon LLP
Kronenthal Craig
Mancuso Joseph
Nippon Telegraph and Telephone Corporation
LandOfFree
Digital watermark embedding method, digital watermark... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital watermark embedding method, digital watermark..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital watermark embedding method, digital watermark... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3770018