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 of healthy cornea with the histogram underneath respectively. Images were normalised and resized to 100 by 100: (a) Original Image sliced at band-100 (CNR: 33.1256); (b) Image after PC subtraction before enhancement (CNR: 27.276); (c) Image after PC subtraction and enhancement (CNR: 77.3276).
