Reports of the Technical Conference of the Institute of Image Electronics Engineers of Japan
Online ISSN : 2758-9218
Print ISSN : 0285-3957
Reports of the 198th Technical Conference of the Institute of Image Electronics Engineers of Japan
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Host: The Institute of Image Electronics Engineers of Japan

A Method of Digital Watermark overcoming Lossy-effect of JPEG Compression
Takayuki Nishimura
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Keywords: digital watermark, JPEG, Wavelet-transform, Viterbi-Decoding
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Pages 12

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Abstract

JPEG compression proceeds in LSI’s inside of Special Machine as Digital Camera. Under this condition We cannot insert digital watermarks into this LSI’s inside. Then We report the result of digital watermark application as follows, “Before JPEG-compression Watermarks are embedded and after JPEG-decompression Watermark’s information are extracted”. We used Wavelet-transform, Convolution-coding, and Viterbi-Decoding effectively for it.

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© 2002 by The Institute of Image Electronics Engineers of Japan
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