Error with permute function : which order to use??

Hi,

I am using a code written by someone else, and I think he used an older version of Matlab than mine. Anyway, when I try to run the code, I have : "Error using ' Transpose on ND array is not defined. Use PERMUTE instead."

So then I tried to change those lines:

gconv = conv2(image_array',gaussian_kernel','same');
  gconv = conv2(gconv',gaussian_kernel'),'same');

into (with permute) :

   gconv = conv2(permute(image_array,[2 1]),permute(gaussian_kernel,[2 1]),'same');
   gconv = conv2(permute(gconv,[2 1]),permute(gaussian_kernel,[2 1]),'same');

But I have this error message :

Error using permute
ORDER must have at least N elements for an N-D array.

Error in bpass (line 125)
gconv = conv2(permute(image_array,[2 1]),permute(gaussian_kernel,[2 1]),'same');

I read in the documentation that Given any matrix A, the statement " permute(A,[2 1]) " is the same as A.'.

But it is not working in my case...what should I change?

Thank you very much for your help!!

Answer 1

[Walter Roberson]

You are working with an RGB array and trying to treat it as if it is a grayscale array.

permute(image_array, [2 1 3])

[Aude Rapet]

Thank you very much Walter!!!