Enhancing Robustness of Digital Watermarking Against Geometric Attack based on Fractal Transform.
Zhicheng NiEric SungYun Q. ShiPublished in: IEEE International Conference on Multimedia and Expo (II) (2000)
Keyphrases
- digital watermarking
- digital watermark
- copyright protection
- digital images
- watermarked image
- discrete wavelet transform
- watermark embedding
- watermarking scheme
- spread spectrum
- image scrambling
- digital content
- image watermarking
- jpeg compression
- watermarking algorithm
- image authentication
- watermarking technique
- image compression
- multimedia
- metadata
- geometric distortions
- error correction
- fractal dimension
- high frequency
- image data
- feature vectors