高斯滤波——图像处理

void GaussianFilter(unsigned char* data, int width, int height)
{
	int				i,j,index,sum;
	unsigned char	*tmpdata;
	int		templates[9]={1,2,1,
		2,4,2,
		1,2,1};
	tmpdata = (unsigned char*)malloc(sizeof(unsigned char) * width * height);
	memcpy(tmpdata, data, sizeof(unsigned char) * width * height);
	for (i=1; i