Hu矩

close all;
clear all;
I1=imread('lena.bmp');
angle=30;
T=[cos(angle),sin(angle),0;-sin(angle),cos(angle),0;0,0,1];
t1 = maketform('affine',T);
I2 = imtransform(I1,t1,'bilinear','fill',0);%旋转
I2=imresize(I2,0.5);%缩放
figure;
imshow(I1);
figure;
imshow(I2);
H1=Humoment(I1)
H2=Humoment(I2)

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