From XY array data in pixels to BW image
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Alejandro Fernández
le 18 Nov 2020
Commenté : Alejandro Fernández
le 18 Nov 2020
Hi, I have a XY array matrix called A , the first column are the X values (column of the image) and the second Y values (rows of the image) and I need to create a BW image in which the points of the A matrix get color white in the image.
As an example, the A data could be:
A = randi(20,[10 2])
And the image size should be , is that correct?
A = randi(20,[10 2]);
idx = sub2ind([20 20],A(:,2),A(:,1));
BW = false(20,20);
BW(idx) = true;
0 commentaires
Réponse acceptée
Ameer Hamza
le 18 Nov 2020
Modifié(e) : Ameer Hamza
le 18 Nov 2020
A little mistake in the calculation of idx
idx = sub2ind([20 20],A(:,2),A(:,1)); % Last input shoule be A(:,1)
Rest is correct.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Matrix Indexing 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!