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.
Robustness against noise results: (a,e): encrypted image and its decrypted image; (b,f): encrypted image added with salt and pepper noise with 0.1 density and corresponding decrypted image; (c,g): encrypted image added with salt and pepper noise with 0.2 density and its decrypted image; (d,h): encrypted image added with salt and pepper noise with 0.3 density and its decrypted image.
