Azzera filtri
Azzera filtri

How to get the largest zero region(rectangle) in a 3D matrix/ 2D matrix?

1 visualizzazione (ultimi 30 giorni)
My origin thoughts is that calculating the min and the max in every collum and row, I'm working on it.
I wonder there is more convenient method to realize it.
The RED rectangle is I want to obtain.

Risposte (1)

Xuechu Xu
Xuechu Xu il 22 Lug 2020
I recommend region growing algorithm. Find all zero elements as seeds, and begin from one of it. Add one collum or row each time to make a growth, meanwhile delete those grown regions from the seeds. Keep this progress until all seeds are grown to region, find the largest one.
  1 Commento
Xuechu Xu
Xuechu Xu il 22 Lug 2020
Ah, something wrong. Those grown dots can't be deleted from seeds, I didn't consider the different shape. (But this will cost much much more resources and time, just for reference only)

Accedi per commentare.

Categorie

Scopri di più su Creating and Concatenating Matrices in Help Center e File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by