MATLAB permute () function & differences between matrix A and matrix a' & imresize () function

MATLAB Image Processing day9:

1. Permute ():

The % permute function is used to rearrange the array and swap the dimension of the array.

% For a two-dimensional array, the permute function can be used to transpose the matrix.

Sample:

2. Differences between matrix A and matrix:

A' indicates the transpose matrix of.

3. imresize ():

% Function for scaling

% The general form is <I> B = imresize (a, m)

The length and width of matrix B are m times that of matrix A. If M> 1, B is the enlarged image of matrix.

If M is less than 1, B is the reduced image of.

 

<II> B = imresize (A, [numrows numcols])

Specify the height and width of Image B, that is, it is not scaled in proportion to image a, which may cause deformation of the image.