changeimg.m

基于legendre矩的尺度不变性matlab代码

clc;clear

N=50;M=32;
f = imread('G1.bmp');
% for i = 1 : 170 
%     for j = 1 : 170
%         g(i,j) = f(i+4,j+4);
%     end
% end
% imwrite(uint8(g),'bacter.bmp');
temp = imresize(f,[M,M]);
for i = 1 : N 
    for j = 1 : N
        g(i,j) = 0;
    end
end
for i = 1 : M 
    for j = 1 : M
        g(i+(N-M)/2,j+(N-M)/2) = temp(i,j);
    end
end
imwrite(uint8(g),'G.bmp');