Digital watermarking technique for holography interference patterns in a transform domain

作者：Choi Hyun Jun; Seo Young Ho; Yoo Ji Sang; Kim Dong Wook^*

来源：Optics and Lasers in Engineering, 2008, 46(4): 343-348.

DOI：10.1016/j.optlaseng.2007.11.005

• optical image processing
• computer-generated hologram
• digital watermarking
• DCT

A digital holography interference pattern generated by a computer calculation (computer generated hologram, CGH) is one of the most expensive contents and its usage is being expanded. Thus, it is highly necessary to protect the ownership of a digital hologram. This paper introduces a watermarking scheme, a method to protect the ownership of digital holograms using the DCT domain data as the ones to be watermarked. This scheme shows very high imperceptibility and strong robustness against the anticipated attacks. We expect that the conclusions of this paper will be a very useful basis for further work in the area of electronic watermarking schemes for the digital holograms.

• 出版日期2008-4