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Cascaded Fresnel digital hologram and its application to watermarking

100%

Deng S. , Liu L. , Lang H. , Zhao D. , Liu X.

Optica Applicata

2006

tom Vol. 36, nr 2-3

413-420

A cascaded Fresnel digital hologram (CFDH) is proposed, together with its mathematical derivation. Its application to watermarking has been demonstrated by a simulation procedure, in which the watermark image to be hidden is encoded into the phase of the host image. The watermark image can be deciphered by the CFDH setup, the reconstructed image shows good quality and the error is almost close to zero. Compared with previous technique, this is a lensless architecture which minimizes the hardware requirement, and it is used for the encryption of digital image.

Granulocyte proteinases as mediators of unspecific proteolysis in inflammation: a review

72%

Fritz H. , Jochum M. , Geiger R. , Duswald K. H. , Dittmer H. , Kortmann S. , Neumann S. , Lang H.

Folia Histochemica et Cytobiologica

1986

tom 24

nr 2