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.
Searching for pollen images by query image example. Query image example is selected from the example list, and query weights on three indexes (color, shape, and texture) can be adjusted to the user’s preference. The weight values range from 0 (left end of the bar, representing no weight) to 100 (right end of the bar, representing the highest amount of emphasis).
