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.
Information entropy of encrypted images.
| Color Image | Encrypted Image | Average of Encrypted Image | ||
|---|---|---|---|---|
| R | G | B | ||
| Lena | 7.999218 | 7.999310 | 7.999203 | 7.999243 |
| Ref. [27] | 7.997200 | 7.997200 | 7.997600 | 7.997333 |
| Ref. [28] | 7.997300 | 7.997000 | 7.997100 | 7.997133 |
| Ref. [7] | 7.997500 | 7.997200 | 7.997300 | 7.997333 |
| Ref. [29] | 7.997400 | 7.997100 | 7.997200 | 7.997233 |
| Ref. [30] | 7.997300 | 7.996800 | 7.997200 | 7.997100 |
| Ref. [24] | 7.989300 | 7.989800 | 7.989400 | 7.989500 |
