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Semi-fragile watermark algorithm based on Walsh-Hadamard transformand and convolution coding

A semi-fragile watermark algorithm based on the Walsh-Hadamard transform and convolution coding was proposed. In this algorithm, the watermark content of the host image was extracted by differential coding and convolution coding respectively based on the image block before embedding watermark, and w...

Whakaahuatanga katoa

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Ngā kaituhi matua: ZHAO Feng1, LI Jian2, LI Sheng-hong2
Hōputu: Artigo
Reo:Chinês
I whakaputaina: Editorial Department of Journal on Communications 2009-01-01
Rangatū:Tongxin xuebao
Ngā marau:
Urunga tuihono:http://www.joconline.com.cn/zh/article/74649278/
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