Chinese Optics Letters, 2008, 6 (4): 251, Published Online: Apr. 21, 2008
Copyright protection in digital museum based on digital holography and discrete wavelet transform Download: 515次
数字全息 离散小波变换 数字水印 版权保护 鲁棒性 090.1760 Computer holography 100.2000 Digital image processing 100.3010 Image reconstruction techniques 100.7410 Wavelets
Abstract
A new method to protect the copyright of digital museum based on digital holography is proposed. The Fresnel hologram of watermark image is embedded in the object to be protected through discrete wavelet transform (DWT). After the watermark detection, the copyright information appears in the reconstructed hologram. With the higher redundancy feature in the hologram, the proposed technique can actually survive several kinds of image processing. Experimental results prove that the presented method has good robustness in image protection.
Zhibin Li, Fei Xia, Gang Zheng, Junyong Zhang. Copyright protection in digital museum based on digital holography and discrete wavelet transform[J]. Chinese Optics Letters, 2008, 6(4): 251.