gaussian_conv_sii.h

Go to the documentation of this file.

#ifndef GAUSSIAN_CONV_SII_H
#define GAUSSIAN_CONV_SII_H

#include "num.h"

#define SII_MIN_K       3

#define SII_MAX_K       5

#define SII_VALID_K(K)  (SII_MIN_K <= (K) && (K) <= SII_MAX_K)

typedef struct sii_coeffs_
{
    num weights[SII_MAX_K];     
    long radii[SII_MAX_K];      
    int K;                      
} sii_coeffs;

void sii_precomp(sii_coeffs *c, double sigma, int K);
long sii_buffer_size(sii_coeffs c, long N);
void sii_gaussian_conv(sii_coeffs c, num *dest, num *buffer,
    const num *src, long N, long stride);
void sii_gaussian_conv_image(sii_coeffs c, num *dest, num *buffer,
    const num *src, int width, int height, int num_channels);

#endif /* GAUSSIAN_CONV_SII_H */