gaussian_conv_sii.h 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.h.

#include "num.h"

Go to the source code of this file.

Data Structures
struct	sii_coeffs_
	Parameters for stacked integral images Gaussian approximation. More...

Macros
#define	SII_MIN_K   3
	Minimum SII filter order.
#define	SII_MAX_K   5
	Maximum SII filter order.
#define	SII_VALID_K(K)   (SII_MIN_K <= (K) && (K) <= SII_MAX_K)
	Test whether a given K value is a valid SII filter order.

Typedefs
typedef struct sii_coeffs_	sii_coeffs
	Parameters for stacked integral images Gaussian approximation.

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...