close all
clear all
clc
im=imread('.\image5.jfif');
imshow(im);title('RGB');
R=im(:,:,1);
G=im(:,:,2);
B=im(:,:,3);
[m,n]=size(R);
Y=0.3*R+0.59*G+0.11*B;
I=0.6*R-0.28*G-0.32*B;
Q=0.21*R-0.52*G+0.31*B;
YIQ=cat(3,Y,I,Q);
figure,imshow(YIQ);
for i=1:1:m;
for j=1:1:n;
if Y(i,j)<223 && Y(i,j)>44 && I(i,j)>0 && I(i,j)<64;
l(i,j)=1;
else
l(i,j)=0;
end
end
end
figure,imshow(l);
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