draw_gauss_ture.m

来自「关于图像的高斯处理的matlab程序」· M 代码 · 共 15 行

function h=Draw_Gauss_Ture(varargin) %varargin是函数传递变量
%描绘出模仿高斯过滤函数
pai=3.1415926;
sigma=varargin{2};
MatrixHalf=varargin{1}/2;
[x,y]=meshgrid(-MatrixHalf:MatrixHalf,-MatrixHalf:MatrixHalf);
z=exp(-(x.*x + y.*y)/(2*sigma*sigma))/(2*pi*sigma^2);
sumz=sum(z(:));
if sumz~=0,
    z=z/sumz;
end;

surf(x,y,z);
shading interp;
colormap(hot);