How to resize an image into size 256*256
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I used the following code
J = J(1:256,1:256,:)
[r c]=size(J);
display(r); display(c);
But the value of c is displayed as 768.But the resized size is 256.What would be the error.And I cant use the command imresize since I need the third coordinate also.
0 commentaires
Réponses (2)
Image Analyst
le 27 Mai 2015
Never use size like that for a color image. Use
[rows, columns, numberOfColorChannels] = size(J);
For more info, see Steve's blog: http://blogs.mathworks.com/steve/2011/03/22/too-much-information-about-the-size-function/
0 commentaires
Thorsten
le 27 Mai 2015
Modifié(e) : Thorsten
le 27 Mai 2015
Use
r = size(J, 1); c = size(J, 2);
If J is a color image, c returns the columns*3. See also my answer to your first question http://www.mathworks.com/matlabcentral/answers/218747-how-to-divide-an-image-into-blocks-and-find-the-rgb-values-of-each-pixels-in-a-block
0 commentaires
Voir également
Catégories
En savoir plus sur Image Processing Toolbox 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!