Connecting spatial and frequency domains for the quaternion Fourier transform.
Hendrik De BieNele De SchepperTodd A. EllK. RubrechtStephen J. SangwinePublished in: Appl. Math. Comput. (2015)
Keyphrases
- fourier transform
- spatial and frequency domains
- frequency domain
- low pass
- spatial domain
- wavelet domain
- color images
- feature extraction
- color image processing
- signal and image processing
- image compression
- denoising
- image watermarking
- subband
- low frequency
- filter bank
- image processing
- discrete fourier transform
- fast fourier transform
- neural network
- fourier coefficients
- single channel
- pattern recognition
- transform domain
- signal processing
- feature selection
- high frequency