<style face="normal" font="default" size="100%">Ownership Authentication by Digital Image Watermarking Based on Block Truncation Coding</style>

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2<style face="normal" font="default" size="100%">Ownership Authentication by Digital Image Watermarking Based on Block Truncation Coding</style><style face="normal" font="default" size="100%">Ownership Authentication by Digital Image Watermarking Based on Block Truncation Coding</style>