Color Image Watermarking Based on Octonion Discrete Cosine Transform.
Shuang SheGuoheng HuangLianglun ChengPublished in: J. Softw. (2019)
Keyphrases
- discrete cosine transform
- image watermarking
- dct coefficients
- jpeg compression
- image compression
- lossy compression
- color images
- transform domain
- watermarking algorithm
- dct domain
- filter bank
- geometric distortions
- discrete wavelet transform
- compressed domain
- digital watermarking
- lossless compression
- additive noise
- compression ratio
- low bit rate
- compression algorithm
- multiresolution