How to convert matrix to 1-D array and back to matrix form?

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j john 2015-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/231264-how-to-convert-matrix-to-1-d-array-and-back-to-matrix-form

编辑： Stephen23 2015-7-27

I have a matrix of size say, W X H, i have to convert the matrix into a 1-D array and perform some operations(bitxor) and again retrieve back my image in the same dimension ie W X H. How to do it? Thanks in advance.

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Answer 1

Stephen23 2015-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/231264-how-to-convert-matrix-to-1-d-array-and-back-to-matrix-form#answer_187264

编辑：Stephen23 2015-7-27

在 MATLAB Online 中打开

Use reshape to do both of these:

>> A = [1,2,3,4;5,6,7,8]
A =
     1     2     3     4
     5     6     7     8
>> B = reshape(A,1,[]) % columnwise
B =
     1     5     2     6     3     7     4     8
>> B = reshape(A.',1,[]) % rowwise
B =
     1     2     3     4     5     6     7     8
>> reshape(B,size(A))
ans =
     1     3     5     7
     2     4     6     8