clc

clear

close all

I = imread('qiegray.jpg');

I = rgb2gray(I);

I = double(I);

I1 = imresize(I, 0.3);

I2 = I1

[M,N] = size(I2);

for i = :M

    for j = :N

        I2(i,j) = -;

    end

end

I2 = imrotate(I2,);

%figure, imshow(I2);

I1 = imrotate(I1,);

[M,N] = size(I1);

for i = :M

    for j = :N

        if(I2(i,j) == I1(i,j))

        else

            I(i + , j + ) = I1(i,j);

        end

    end

end

figure, imshow(uint8(I));

imwrite(uint8(I),'heli.jpg');