Research Article
A Secure Image Encryption Algorithm Based on Rubik's Cube Principle
Table 2
Number of pixel change rate (NPCR) between images encrypted with keys and (with 1 bit difference).
| Image | Mean (%) | Standard deviation (%) |
| Lena | 99.6111 | 0.0251 | Black | 99.6064 | 0.0238 | Baboon | 99.6085 | 0.0253 | Checkerboard | 99.6113 | 0.0274 |
|
|