Untitled

%read an image in matrix I

%read an image in matrix m,n,c

I=imread("peppers.png");

[m,n,c]=size(1);

3=zeros(m,n);

%creating zero matrix of size m x n

31=zeros(m, n);

%initalizing the values in the zero matrix J and J1

for i=1:m

J(i,j)=(I(i,j,1)+I(i,j,2)+I(i,j,3))/3; J1(i,j)=(0.299*1(i,j,1)+0.587*1(i,j,2)+0.114*1(i,j,3))/3;

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for j=1:n

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end;

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end;

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figure;

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subplot(2,2,1);

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imshow(I);

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title("original");

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subplot(2,2,2);

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imshow(3,[]);

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title("");

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subplot(2,2,3);

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imshow(31,[]);