number of pixels inside circles of different radius on a single picture
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Dhandapani.S
le 6 Jan 2015
Commenté : Dhandapani.S
le 26 Jan 2015
i wanted to draw circles with different radius on a picture and count number of pixels inside each circle coverage..
0 commentaires
Réponse acceptée
Image Analyst
le 6 Jan 2015
A similar demo of mine is attached.
10 commentaires
Image Analyst
le 25 Jan 2015
You won't know if there are any detached blobs unless you cover the whole image. What if there was a white spot way on the right side just before the right edge of the image? If you had stopped the first time the circle added zero pixels, then you never would get that blob, so the algorithm would not be robust.
For triangles, use poly2mask() to define the binary mask. I'm sure you can figure it out after looking at the help for poly2mask.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Image Data Workflows 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!