MATLAB: Delete zero columns in images

delete columns

How are you everyone! I need your help to solve this problem :

If I have an image which contains columns with all elements equal to zero , how can delete the columns?

For example , if I have the image

A= [ 1 0 2 3 4 ;0 0 5 4 3 ;5 0 7 6 5;3 0 4 3 0]

How can I delete the second column ? The result I want is

AA=[1 2 3 4 ;0 5 4 3 ;5 7 6 5 ;3 4 3 0]

Any answer will be appreciated Thank you.

Best Answer

A= [ 1 0 2 3 4 ;0 0 5 4 3 ;5 0 7 6 5;3 0 4 3 0]
AA=A(:,any(A))

Related Solutions

MATLAB: Remove some numbers from an array and replace them with zero

>> A = [4,4,4,4,6,6,6,6,6,6,2,2,3,3,3,5,5,5,5,5,3,3,3]
A =
  4  4  4  4  6  6  6  6  6  6  2  2  3  3  3  5  5  5  5  5  3  3  3
>> B = A;
>> B([false,~diff(B)]) = 0
B =
  4  0  0  0  6  0  0  0  0  0  2  0  3  0  0  5  0  0  0  0  3  0  0

MATLAB: How to remove duplicates in correlations matrix

 x=triu(x,1);

Need to convert from N variables to an array to do this effectively. I'd guess that would be beneficial going forward overall besides just this one Q?.

Best Answer

Related Solutions

MATLAB: Remove some numbers from an array and replace them with zero

MATLAB: How to remove duplicates in correlations matrix

Related Question