An official website of the United States government
Here's how you know
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.
Simulated scene under different comparison illuminations. For each of the four illumination directions, we show the stimulus image (the left eye image from each stereo pair) rendered under comparison illuminations, which differ from the target by 1, 15, or 50 (nominal) ΔE units.