Full 4-D quaternion discrete Fourier transform based watermarking for color images.
Beijing ChenGouenou CoatrieuxGang ChenXingming SunJean-Louis CoatrieuxHuazhong ShuPublished in: Digit. Signal Process. (2014)
Keyphrases
- color images
- fourier transform
- translation invariant
- color texture
- discrete fourier transform
- gray scale
- color space
- image processing
- frequency domain
- grayscale images
- color image segmentation
- color information
- radon transform
- image watermarking
- watermarking scheme
- robust image watermarking
- data hiding
- image reconstruction
- fourier analysis
- copyright protection
- digital images
- fourier domain
- fourier spectrum
- multiresolution
- spread spectrum
- wavelet transform
- signal processing
- image restoration
- fourier descriptors
- watermarking algorithm
- neural network