Arguments of Reshape function with example

4 vues (au cours des 30 derniers jours)
Manu Chaudhary le 18 Jan 2022
Commenté : Manu Chaudhary le 18 Jan 2022
Hi everyone. I am completely new to matlab and struggling with the syntax.
Suppose,
A = [1 2; 3 4; 5 6]
reshape(A, [1,6])
reshape(A, [1 6])
Both the reshape gives similar kind of result. I am confused with the syntax. Please explain me the syntax and working of reshape.
Suppose, if I put
reshape (A, [1 2]) then I will start getting errors.
Suppose I have a colored image of 64x64.
0 commentairesAfficher -2 commentaires plus anciensMasquer -2 commentaires plus anciens

Connectez-vous pour commenter.

Réponse acceptée

KSSV le 18 Jan 2022
A = [1 2; 3 4; 5 6] ;
% this is a 3*2 matrix
reshape(A, [1,6])
reshape(A, [1 6])
% Both the above commands are same. whether you put , in [1 6] or not mean the same.
reshape (A, [1 2]) % this will definetly throw error, becuase you can reshape 3*2 = 6 elements into 1*2 = 2 elements.
You have 64*64 colored image, what exactly you want to do with it?
7 commentairesAfficher 5 commentaires plus anciensMasquer 5 commentaires plus anciens
KSSV le 18 Jan 2022
data= input_image_3D(:, : ,1); % this extracts first channel/ Red channel/ first matrix of mxnx3
In the above : means all, i.e. all the rows and all the columns. First position is rows and second position is columns.
data= reshape(testingReadFile1,[64 64 3])); % this reshapes an array into 64x64x3.
output = data(1:64, 1:64, 1:3); % this is nothing but saving array data into other array variable output
% the above can be simply written as
output = data ;
Manu Chaudhary le 18 Jan 2022
Thank you Stephen and KSSV for sharing such great links and answering my all questions. I am highly thankful to you for your generous help and support.

Connectez-vous pour commenter.

Catégories

En savoir plus sur Images dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by