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.
Image annotation is completed by excluding areas not covered by tissue and high/low exposure regions. These exposure regions (e.g., specular reflections) do not contain tissue-specific information and can be excluded automatically21 in future work. The red overlay indicates regions to classify. From left to right: colon, gallbladder, liver, and kidney.
