Untitled

rgbImage = imread('your_image.png'); 
R = double(rgbImage(:,:,1)); 
G = double(rgbImage(:,:,2)); 
B = double(rgbImage(:,:,3)); +
grayImage = 0.299 * R + 0.587 * G + 0.114 * B;

grayImage = uint8(grayImage);

imshow(grayImage);


imwrite(grayImage, 'grayscale_image.png'); 
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j=imread("original");
jg = j(:,:,2);
figure, imshow(jg);
jr = j(:,:,1);
figure, imshow(jr);
jb = j(:,:,3);
figure, imshow(jb);

figure, imshow(jr);
figure, imshow(jg)
figure, imshow(jb);

figure,subplot(2,2,1), title("original"),imshow(j);
subplot(2,2,2), title("red"),imshow(jr);
subplot(2,2,3), title("red"),imshow(jg);
figure,subplot(2,2,4), title("blue"),imshow(jb);
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I=imread("peppers.png");
[m,n,c]=size(I);
J=zeros(m,n);
j1=zeros(m,n);
for i=1:m
	for j=1:n
j(i,j)=(i(i,j,1)+I(i,j,2)+i(i,j,3))/3;

j1(i,j)=(0.29*1(i,j,1)+0.587*i(i,j,2)+0.1141*i(i,j,3))/3;
end;
end;
figure, imshow(j,[]);
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