gaussian_conv_fir.h

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#ifndef _GAUSSIAN_CONV_FIR_H_
#define _GAUSSIAN_CONV_FIR_H_

#include "num.h"

typedef struct fir_coeffs_
{
    num *g_trunc;   
    long radius;    
} fir_coeffs;

int fir_precomp(fir_coeffs *c, double sigma, num tol);
void fir_gaussian_conv(fir_coeffs c, num *dest, const num *src,
    long N, long stride);
void fir_gaussian_conv_image(fir_coeffs c, num *dest, num *buffer,
    const num *src, int width, int height, int num_channels);
void fir_free(fir_coeffs *c);

#endif /* _GAUSSIAN_CONV_FIR_H_ */