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.
Example for the four types of images we used during testing: normal, no patch (the colored patches in the background are removed), wrong patch (the colored patches are cropped and replaced by the same surfaces but under the D65 illumination), and wrong background (the object in cropped and placed in the room illuminated by D65 illumination).
