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Image watermarking has become an important tool for intellectual property protection and authentication. In this paper a watermarking technique is suggested that incorporates two watermarks in a host image for improved robustness. A watermark, in form of a PN sequence (will be called the information watermark), is embedded in the DCT domain of the cover image. The second watermark (called synchronization...
Digital watermarking addresses the growing concerns of theft and tampering of digital media through the use of advanced signal processing strategies to embed copyright and authentication information within media content. This paper aims to implement two watermarking techniques in DCT domain. In one, embedding of signal is based on quantization and in the other embedding is without quantization. Quantization...
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