Converting column vectors into 128x128 matrix to obtain a picture

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Danila Frolov
Danila Frolov 2018-3-4
评论： Danila Frolov 2018-3-5
Hello I am pretty new to Matlab, and I am trying to convert my data file into an 128x128 matrix in order to display an image. So, in my file I have 3 columns with 16384 numeric values in each of them, and I need to have 128x128x3 matrix, like a format of image. I was trying method reshape, but it did not work for me, I am getting an error such
Error using reshape
To RESHAPE the number of elements must not change.
Here is my code
fileID = fopen('out.txt','r');
formatSpec = '%d';
A = fscanf(fileID,formatSpec);
B = reshape (A,128,128);
Please suggest what would be the best solution for this problem.

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Walter Roberson
Walter Roberson 2018-3-4
编辑：Walter Roberson 2018-3-4
B = reshape(A,64,128,3);
Note: probably you want
B = uint8( reshape(A,64,128,3) );
It is possible you want A,128,64,3 instead of A,64,128,3 -- you will need to try both versions.
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Walter Roberson
Walter Roberson 2018-3-4
I am not sure now why my earlier calculation had been that you needed 64*128 instead 128*128

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