Improved spread spectrum image watermarking in contourlet domain

A novel watermarking algorithm operating within the contourlet domain is presented. We have used an improved spread spectrum technique for additive watermark embedding. As usual, the watermark embedded is retrieved by computing the correlation between the watermarked coefficients and the pseudorando...

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Bibliographische Detailangaben
Hauptverfasser:	Jimenez-Salinas, M., Garcia-Ugalde, F.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Additives Circuits contourlet transform Embedded computing image watermarking information embedding Noise robustness PSNR Random sequences Robust control robust water-marking semi-fragile watermarking Signal processing algorithms Spread spectrum communication Spread-spectrum Watermarking
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