vil_gauss_filter.txx File Reference

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Detailed Description

smooth images

Author:

Ian Scott

Definition in file vil_gauss_filter.txx.

#include "vil_gauss_filter.h"
#include <vil/vil_transpose.h>
#include <vil/algo/vil_convolve_1d.h>
#include <vcl_iostream.h>
#include <vcl_cassert.h>

Go to the source code of this file.

Defines
#define	VIL_GAUSS_FILTER_INSTANTIATE(srcT, destT)
Functions
unsigned char	l_round (double x, unsigned char)
signed char	l_round (double x, signed char)
double	l_round (double x, double)
float	l_round (double x, float)
template<class srcT, class destT>
void	vil_gauss_filter_5tap (const srcT *src_im, vcl_ptrdiff_t src_istep, vcl_ptrdiff_t src_jstep, destT *dest_im, vcl_ptrdiff_t dest_istep, vcl_ptrdiff_t dest_jstep, unsigned nx, unsigned ny, const vil_gauss_filter_5tap_params &params, destT *work, vcl_ptrdiff_t work_jstep)
	Smooth and subsample src_im to produce dest_im.
template<class srcT, class destT>
void	vil_gauss_filter_5tap (const vil_image_view< srcT > &src_im, vil_image_view< destT > &dest_im, const vil_gauss_filter_5tap_params &params, vil_image_view< destT > &work)
	Smooth a src_im to produce dest_im.

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Define Documentation

#define VIL_GAUSS_FILTER_INSTANTIATE (  srcT, destT   )

Value: template void vil_gauss_filter_5tap(const vil_image_view<srcT >& src_im, \ vil_image_view<destT >& dest_im, \ const vil_gauss_filter_5tap_params& params, \ vil_image_view<destT >& work) Definition at line 289 of file vil_gauss_filter.txx.

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Function Documentation

float l_round (  double  x, float  )  [inline]

Definition at line 27 of file vil_gauss_filter.txx.

double l_round (  double  x, double  )  [inline]

Definition at line 26 of file vil_gauss_filter.txx.

signed long l_round (  double  x, signed  long )  [inline]

Definition at line 19 of file vil_gauss_filter.txx.

unsigned long l_round (  double  x, unsigned  long )  [inline]

Definition at line 18 of file vil_gauss_filter.txx.

template<class srcT, class destT> void vil_gauss_filter_5tap (  const vil_image_view< srcT > &  src_im, vil_image_view< destT > &  dest_im, const vil_gauss_filter_5tap_params &  params, vil_image_view< destT > &  work )

Smooth a src_im to produce dest_im. Applies 5 element FIR filter in x and y. Definition at line 144 of file vil_gauss_filter.txx.

template<class srcT, class destT> void vil_gauss_filter_5tap (  const srcT *  src_im, vcl_ptrdiff_t  src_istep, vcl_ptrdiff_t  src_jstep, destT *  dest_im, vcl_ptrdiff_t  dest_istep, vcl_ptrdiff_t  dest_jstep, unsigned  nx, unsigned  ny, const vil_gauss_filter_5tap_params &  params, destT *  work, vcl_ptrdiff_t  work_jstep )

Smooth and subsample src_im to produce dest_im. Applies 5 pin filter in x and y, then samples every other pixel. Assumes dest_im has sufficient data allocated Definition at line 36 of file vil_gauss_filter.txx.

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