A Novel Zero-Watermarking Scheme Based on Variable Parameter Chaotic Mapping in NSPD-DCT Domain
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DOI: 10.1109/access.2020.3004841
Abstract: In this paper, a novel image zero-watermarking scheme against rotation attacks is proposed based on nonsubsampled pyramid decomposition (NSPD) and discrete cosine transform (DCT). It utilizes the intrinsic characteristics of NSPD and DCT to extract… read more here.
Keywords: nspd dct; zero watermarking; scheme; image ... See more keywords