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FFT::Fourier_domain Namespace Reference

Functions purely in Fourier domain. More...

Functions
void	difference_of_gaussians (const Support::buffer_type &F, const float center_wave_length, Support::buffer_type *const G, Support &support)
void	difference_of_gaussians (const Support::buffer_type &F, const float small_wave_length, const float large_wave_length, Support::buffer_type *const G, Support &support)
	Duplication of the mix function to avoid back and forth copy from buffer.

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Detailed Description

Functions purely in Fourier domain.

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Function Documentation

void FFT::Fourier_domain::difference_of_gaussians (  const Support::buffer_type &    F, const float    small_wave_length, const float    large_wave_length, Support::buffer_type *const    G, Support &    support )  [inline]

Duplication of the mix function to avoid back and forth copy from buffer. This function works only in fourier domain. Filter f by (Gassian_small - Gaussian_large). f is given through its Fourier transform F in a Support::buffer_type. g is given back through its Fourier transform G in a Support::buffer_type.

void FFT::Fourier_domain::difference_of_gaussians (  const Support::buffer_type &    F, const float    center_wave_length, Support::buffer_type *const    G, Support &    support )  [inline]

Filter f (represented by its Fourier transform) by a pass-band filter centered on center_wave_length. Return value G in Fourier domain.

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