Table of Contents of Filter/FFT

convol_fft__ Convolve an image with a byte-mask in the frequency domain.
convol_gabor__ Convolve an image with a Gabor filter in the frequency domain.
energy__ Calculate the energy of a two-channel image.
fft__ Compute the fast Fourier transform of an image.
fft_generic Compute the fast Fourier transform of an image.
fft_inv__ Compute the inverse fast Fourier transform of an image.
gen_bandfilter Generate an ideal band filter.
gen_bandpass Generate an ideal bandpass filter.
gen_filter_mask Store a filter mask in the spatial domain as a real-image.
gen_gabor Generate a Gabor filter.
gen_highpass Generate an ideal highpass filter.
gen_lowpass Generate an ideal lowpass filter.
gen_sin_bandpass Generate a bandpass filter with sinusoidal shape.
gen_std_bandpass Generate a bandpass filter with Gaussian or sinusoidal shape.
phase_deg Return the phase of a complex image in degrees.
phase_rad Return the phase of a complex image in radians.
power_byte Return the power spectrum of a complex image.
power_ln Return the power spectrum of a complex image.
power_real Return the power spectrum of a complex image.


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