Image Authentication in Ridgelet Domain
Zhai Zheng-jun · Science Technology and Engineering · 2006
A novel algorithm for image authentication in ridgelet domain is presented. The algorithm makes watermark information chaos through Arnold transform, and embeds watermark to the ridgelet coefficent of original image. Experimental results demonstrate that the watermark is invisible and robust against JPEG compress, crop, and salt pepper noise etc. And it is effective to the authentication of image modification.