A variable block-size dot-based watermarking method

We propose a digital watermarking method for still images in the discrete cosine transform (DCT) domain. The adaptive watermark insertion method is employed to increase the invisibility of the inserted watermark in images, in which variable block-size is adopted depending on the characteristics of t...

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Veröffentlicht in:	IEEE transactions on consumer electronics 1999-11, Vol.45 (4), p.1221-1229
Hauptverfasser:	Kwon, O-Hyung, Kim, Young-Sik, Park, Rae-Hong
Format:	Artikel
Sprache:	eng
Schlagworte:	Blocking Discrete cosine transforms Electronics Filtering Filtration Hafnium Image compression Insertion Petroleum Robustness Watermarking
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