The frequency domain plays an important role in image processing to smooth, enhance, and detect edges of images. Although image data typically does not include imaginary values, the fast Fourier transform (FFT) has been used for obtaining spect

reed-muller编码和译码的MATLAB程序。用到的是FHT算法-reed-muller encoding and decoding of the MATLAB program. FHT algorithm is used

基于fht的匹配追踪算法，算法速度要比fft快很多，提高了一个数量级-Fht based matching pursuit algorithm, the algorithm much faster speed than fft, an order of magnitude increase

perfoms a forward fast hankel transform