tch.c

图像置乱代码

#include"tch.h"
#define send(x, y, n); {{int k; for(k=0; k<n; k++) (y)[k]=(x)[k];}}

int **int_matrix_alloc(int row, int col)
{
    int i;
    int **m;

    m=(int **)malloc(row*sizeof(int*));

    for(i=0; i<row; i++)
        m[i]=(int *)malloc(col*sizeof(int));

    return m;
}
/*
void free_int_matrix(int **m, int row)
{
    int i;

    for(i=0; i<row; i++) free((int*) m[i]);
    free((int*) m);
}
*/
void fixed_spline_smoothing(double data[], int n, int iter)
{
	int i, j;
	double *data1;

	data1=(double *)malloc(n*sizeof(double));
	for(i=0; i<iter; i++)
	{
		send(data, data1, n);
		for(j=1; j<n-1; j++)
			data[j]=(data1[j-1]+2.0*data1[j]+data1[j+1])/4.0;
	}
	free(data1);
}	

double **db_matrix(int row, int col)
{
	int i;
	double **m;

	m=(double **)malloc(row*sizeof(double *));
	for(i=0; i<row; i++)
		m[i]=(double *)malloc(col*sizeof(double));
	return m;
}	

void free_db_matrix(double **m, int row)
{
	int i;

	for(i=0; i<row; i++)
		free((double *)m[i]);
	free((double *)m);
}