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How to solve "Transpose on ND array is not defined. Use PERMUTE instead."

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Dingbang Liang
Dingbang Liang 2018-5-22
评论： Dingbang Liang 2018-5-22
lena = double(imread('lena.tif'));
figure(6);
imshow(lena)
y_LenaHalf = double(imread('lena_half.tif'));
figure(7);
imshow(y_LenaHalf)
x2 = 1:256;
xi_2 = 1:(255/511):256;
yi_2 = interp1(x2, y_LenaHalf, xi_2);
yi2_2 = interp1(x2, yi_2.', xi_2).';
figure(8);
imshow(uint8(yi2_2))
SE2 = (lena - yi2_2).^2;
MSE2 = mean(mean(SE2));
I want to enlarge photo 'lena' using interp1, but i got an issue.
Error using .' Transpose on ND array is not defined. Use PERMUTE instead.
Error in week9_lectorial (line 44) yi2_2 = interp1(x2, yi_2.', xi_2).';

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回答（1 个）

KSSV
KSSV 2018-5-22
A = rand(2,3,3) ;
A' % throws error
So, you cannot transpose a 3D matrix, striaght away. Check this:
[m,n,p] = size(A) ;
iwant = zeros(n,m,p) ;
for i = 1:p
iwant(:,:,i) = A(:,:,i)' ;
end

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