Fig. 4.
Example of resolution transitions in a variable resolution image. A and B show examples of border transitions between variable resolution image tiles at image zoom 0.2 and 1, respectively.
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.