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

3 Ansichten (letzte 30 Tage)
michelle
michelle am 22 Jul. 2020
Kommentiert: Xuechu Xu am 22 Jul. 2020
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.

Antworten (1)

Xuechu Xu
Xuechu Xu am 22 Jul. 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 Kommentar
Xuechu Xu
Xuechu Xu am 22 Jul. 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)

Melden Sie sich an, um zu kommentieren.

Community Treasure Hunt

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

Start Hunting!

Translated by