New gray-scale watermarking algorithm of color images based on Quaternion Fourier Transform.
Wei-jiang WangWei ZuoXue-mei YanPublished in: IWACI (2010)
Keyphrases
- fourier transform
- gray scale
- watermarking algorithm
- color images
- signal processing
- image processing
- gray scale images
- jpeg compression
- grayscale images
- frequency domain
- binary images
- color information
- pattern recognition
- wavelet domain
- watermarking scheme
- error diffusion
- computer vision
- denoising
- structuring elements
- contrast enhancement
- gray images