An Improved Algorithm of Watermark Preprocessing Based on Arnold Transformation and Chaotic Map.
Dongbo ZhangJingbo ZhangPublished in: ISICA (2015)
Keyphrases
- chaotic map
- preprocessing
- digital watermarking
- piecewise linear
- watermarking technique
- image encryption
- digital images
- hash functions
- s box
- watermarking scheme
- post processing
- jpeg compression
- copyright protection
- pseudorandom
- watermarking algorithm
- data hiding
- dynamic programming
- discrete wavelet transform
- wavelet domain
- efficient implementation
- feature space
- feature extraction