What does logical AND operator do with label matrices?

2 views (last 30 days)
In this code, blobs are small blobs within a greater tissue (tissuemask). It's my understanding that the output of watershed, wsh, is a label matrix that labels over 400 different blobs.
wsh = watershed(~(blobs)); % separate any connected blobs
c = imdilate(blobs) & wsh & tissuemask;
c is another mask that contains all three here - my question is, how is wsh treated as a logical binary mask when it contains values from 1 to over 400? How does the AND operator treat a label matrix? Does it just include any nonzero value?

Accepted Answer

Gatech AE
Gatech AE on 8 Jun 2021
The AND operator treats any nonzero value in "wsh" as true, so specific information about the labels is thrown out when creating "c"

More Answers (0)

Community Treasure Hunt

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

Start Hunting!