Figure 3.
(a) Deep red cluster identified by maximum pixels' coverage area identifier and (b) and (c) red/light red clusters identified by maximum colour distance identifier.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.