figure1.m

是一本教科书的各个章节的源程序代码,适合初学数字图像的人

f = zeros(30,30);
f(5:24,13:17) = 1;
imshow(f,'notruesize')
F = fft2(f);
F2 = log(abs(F));
imshow(F2,[-1 5],'notruesize'); 
colormap(jet); 
colorbar