Cascaded Fresnel digital hologram and its application to watermarking

• Autorzy: Deng S. , Liu L. , Lang H. , Zhao D. , Liu X.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Fresnel digital holography; encryption and decryption; watermarking; image processing

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2006
• Tom: Vol. 36, nr 2-3
• Strony: 413--420
• Opis fizyczny: Bibliogr. 15 poz.,

Twórcy

autor

Deng S.

autor

Liu L.

autor

Lang H.

autor

Zhao D.

autor

Liu X.

• Univ. of Science and Technology, Nanjing 210094, China

Bibliografia

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