Check if a binary image is within a particular binary area
5 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I have a binary image BW_large, and another binary image BW_small
How do I check if BW_small is within BW_large?
0 commentaires
Réponse acceptée
DGM
le 24 Avr 2022
Modifié(e) : DGM
le 24 Avr 2022
I'm assuming your images are the same size, but contain objects of differing size.
The intersection of two binary images A and B is
intAB = A & B;
If the intersection is equal to one of the two images, then that image is wholly contained within the other.
BinA = isequal(B,intAB);
Otherwise, if you have different size images which contain similarly-sized and oriented copies of the same object, you might look at normxcorr() or something.
6 commentaires
DGM
le 25 Avr 2022
This gives the ratio of the intersection area to the area of BW3
nnz(intAB3)/nnz(BW3)
Plus de réponses (1)
Image Analyst
le 24 Avr 2022
If you just want to know if ANY part of it is within the other blob, then you can make up your marker image and main image, and call imreconstruct(). You have years of image processing experience now so you should be able to figure it out.
0 commentaires
Voir également
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!