Figure 8.
Showing a color wheel with 21 different shapes (20 + black) replacing the original pixels with corrected intervals of hue values.
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.