freq_filt

freq_filt — fourier transforms and frequency-domin filters

Stability Level

Stable, unless otherwise indicated

Synopsis

#include <vips/vips.h>

int                 im_fractsurf                        (IMAGE *out,
                                                         int size,
                                                         double frd);
int                 im_freqflt                          (IMAGE *in,
                                                         IMAGE *mask,
                                                         IMAGE *out);
int                 im_disp_ps                          (IMAGE *in,
                                                         IMAGE *out);
int                 im_rotquad                          (IMAGE *in,
                                                         IMAGE *out);
int                 im_fwfft                            (IMAGE *in,
                                                         IMAGE *out);
int                 im_invfft                           (IMAGE *in,
                                                         IMAGE *out);
int                 im_invfftr                          (IMAGE *in,
                                                         IMAGE *out);
int                 im_phasecor_fft                     (IMAGE *in1,
                                                         IMAGE *in2,
                                                         IMAGE *out);

Description

To and from Fourier space, filter in Fourier space, convert Fourier-space images to a displayable form.

Details

im_fractsurf ()

int                 im_fractsurf                        (IMAGE *out,
                                                         int size,
                                                         double frd);

im_freqflt ()

int                 im_freqflt                          (IMAGE *in,
                                                         IMAGE *mask,
                                                         IMAGE *out);

im_disp_ps ()

int                 im_disp_ps                          (IMAGE *in,
                                                         IMAGE *out);

im_rotquad ()

int                 im_rotquad                          (IMAGE *in,
                                                         IMAGE *out);

im_fwfft ()

int                 im_fwfft                            (IMAGE *in,
                                                         IMAGE *out);

im_invfft ()

int                 im_invfft                           (IMAGE *in,
                                                         IMAGE *out);

im_invfftr ()

int                 im_invfftr                          (IMAGE *in,
                                                         IMAGE *out);

im_phasecor_fft ()

int                 im_phasecor_fft                     (IMAGE *in1,
                                                         IMAGE *in2,
                                                         IMAGE *out);

See Also

image