维纳滤波、逆滤波matlab程序(不调用图像库函数)

				% generate h = exp( sqrt(x^2 + y^2)/240 ) blur template
				
				function  h = BlurTemplate(n)
				
				x = -floor(n/2):floor(n/2);
				y = -floor(n/2):floor(n/2);
				
				for i = 1:size(x,2)
				    for j = 1:size(y,2)
				        h(i,j) = exp( sqrt( x(i)^2 + y(j)^2 ) / 240 );
				    end
				end
				
				h = h./sum(sum(h));