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

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N. Adithi Rao 2024-5-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2117636-i-want-matrix-e-matrix-b-i-want-correct-answer

评论： Josh 2024-5-12

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)
    %  disp('Correct Answer');
    %else
    % disp('Not Correct Answer');
    %end

1 个评论
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Walter Roberson 2024-5-11

在 MATLAB Online 中打开

                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)

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采纳的回答

Josh 2024-5-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2117636-i-want-matrix-e-matrix-b-i-want-correct-answer#answer_1455991

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