# i want matrix E == matrix B(i want correct answer)

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N. Adithi Rao on 11 May 2024
Commented: Josh on 12 May 2024
I have tried to run this code many times , even changed the equation , values but i am not able to get the correct answer , here A given is before its transpose of glcm
% Convert to grayscale if necessary
%if size(img, 3) > 1
%img = rgb2gray(img);
%end
I = [0 0 1 1;
0 0 1 1;
0 2 2 2;
2 2 3 3];
A = [2 2 1 0;
0 2 0 0;
0 0 3 1;
0 0 0 1];
D = A';
E = A + D;
E
%glcms = graycomatrix(I);
%glcms
m = 5;
%n = 4;
count = 0;
%count1 = 0;
n = 3;
o = 4;
for i = 1 : 4
for j = 1:4
for l = 1 : 4
for k = 1 : 4
x = I(i,1);
y = I(i,3-1);
a = I(i,3+1-1);
b = I(i,2+2-1);
if (I(i,j) && I(i,n-j)) == (I(i,n-k) && I(i, n+1-k))
%disp('Entered the control');
% count = count+ 1;
%end
end
end
B(i,j) = count;
end
%B(i,j) = count;
%end
%end
end
%if (E == B)
%else
%end
Walter Roberson on 11 May 2024
a = I(i,3+1-1);
b = I(i,2+2-1);
Those always evaluate to the same location, a = I(i, 3) and b = I(i, 3)

Josh on 11 May 2024
E==B is going to do an element-wise comparison, returning a matrix the same size as E and B with logicals (0's, 1's) where the elements in the same positions are equal, sounds like you want a simple true/false if E and B are the same
if you're wanting to build a condition on the entire matrices being equivalent, then you probably want to use:
if isequal(E,B)
...
end
isequal() will output a single true/false value
you could also use all(all(E==B)) to reduce the element-wise comparison to a single true/false
N. Adithi Rao on 12 May 2024
Thank you so much
Josh on 12 May 2024
you're very welcome...the latest version is much easier to follow too, nice structure and commeting as well, bravo!

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