Division of two Multidimensional array
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Hi
I have two multidimensional array say A (30x10x30) & B(30x10x30). I want to divide the elements of A by the corresponding elements of B.
How to do it.
I am not getting corrrect result by diving like this A./B
6 个评论
Image Analyst
2021-7-11
That should work. Please post your arrays and tell us, for some particular location, what you're getting and what you thought you should get.
save('answers.mat', 'A', 'B');
mukesh bisht
2021-7-11
Image Analyst
2021-7-11
Uh, ok, but I'm still waiting for you to answer "tell us, for some particular location, what you're getting and what you thought you should get."
Like C(1,3,5) is 150 when it should be
I'll check back later.
load('matlab.mat')
C = A ./ B;
numSlices = size(C, 3);
for k = 1 : numSlices
subplot(1, 3, 1);
imshow(A(:, :, k), [], 'InitialMagnification', 1000);
axis('on', 'image');
impixelinfo;
title('A', 'FontSize', 20);
subplot(1, 3, 2);
imshow(B(:, :, k), [], 'InitialMagnification', 1000);
axis('on', 'image');
impixelinfo;
title('B', 'FontSize', 20);
subplot(1, 3, 3);
imshow(C(:, :, k), [], 'InitialMagnification', 1000);
axis('on', 'image');
impixelinfo;
title('C', 'FontSize', 20);
drawnow;
pause(0.4);
end
mukesh bisht
2021-7-11
Image Analyst
2021-7-11
OK, I get
load('matlab.mat')
C = A ./ B;
fprintf('A(7,1,1) = %f.\n', A(7,1,1));
fprintf('B(7,1,1) = %f.\n', B(7,1,1));
fprintf('C(7,1,1) = %f.\n', C(7,1,1));
A(7,1,1) = 0.000055.
B(7,1,1) = 0.001192.
C(7,1,1) = 0.045776.
Explain why you get 0 for A and B. Did you upload the wrong data?
mukesh bisht
2021-7-11
回答（1 个）
you can iterate the 2D division
A = rand(30,10,30);
B = rand(30,10,30);
sz=size(A);
r = cell(sz(3),1);
for i = 1:sz(3)
r{i} = A(:,:,i)./B(:,:,i); % in this cell array you will have the divisions
end
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2021-7-11
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