gaussian_conv_sii.c File Reference

Gaussian convolution using stacked integral images. More...

Detailed Description

Gaussian convolution using stacked integral images.

Author

Pascal Getreuer getre.nosp@m.uer@.nosp@m.cmla..nosp@m.ens-.nosp@m.cacha.nosp@m.n.fr

Copyright (c) 2012-2013, Pascal Getreuer All rights reserved.

This program is free software: you can redistribute it and/or modify it under, at your option, the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version, or the terms of the simplified BSD license.

You should have received a copy of these licenses along with this program. If not, see http://www.gnu.org/licenses/ and http://www.opensource.org/licenses/bsd-license.html.

Definition in file gaussian_conv_sii.c.

#include "gaussian_conv_sii.h"
#include <assert.h>
#include <stdio.h>
#include "filter_util.h"

Go to the source code of this file.

Macros
#define	M_PI   3.14159265358979323846264338327950288
	The constant pi.

Functions
void	sii_precomp (sii_coeffs *c, double sigma, int K)
	Precompute filter coefficients for SII Gaussian convolution. More...
long	sii_buffer_size (sii_coeffs c, long N)
	Determines the buffer size needed for SII Gaussian convolution. More...
void	sii_gaussian_conv (sii_coeffs c, num *dest, num *buffer, const num *src, long N, long stride)
	Gaussian convolution SII approximation. More...
void	sii_gaussian_conv_image (sii_coeffs c, num *dest, num *buffer, const num *src, int width, int height, int num_channels)
	2D Gaussian convolution SII approximation More...