A watermark strategy for quantum images based on quantum fourier transform.
Wei-Wei ZhangFei GaoBin LiuQiao-Yan WenHui ChenPublished in: Quantum Inf. Process. (2013)
Keyphrases
- fourier transform
- log polar
- fourier domain
- frequency domain
- spatial domain
- input image
- fourier analysis
- image features
- fourier coefficients
- discrete fourier transform
- image data
- geometric distortions
- polar coordinates
- spectral estimation
- test images
- digital images
- frequency spectrum
- edge detection
- radon transform
- fourier descriptors
- image matching
- image restoration
- image registration
- motion estimation
- power spectral density
- multiscale