Research Article
A QR Code Based Zero-Watermarking Scheme for Authentication of Medical Images in Teleradiology Cloud
Table 6
Log scaled representation of Hu’s moments for original Figure
9(a) and cropped images.
| | Image | Hu’s moments | | | | | | | |
| 
Cropping %: 0
(unaltered image) | 2.8952 | 7.8677 | 11.3004 | 11.3819 | 23.8702 | 15.4492 | 22.7241 |
| 
Cropping %: 20 | 2.8965 | 8.2655 | 10.8645 | 10.9762 | 22.2239 | 15.1110 | 21.9509 |
| 
Cropping %: 50 | 2.8618 | 7.3862 | 10.2945 | 10.2306 | 20.5785 | 14.4780 | 20.7373 |
| 
Cropping %: 75 | 2.7527 | 7.5646 | 9.3965 | 9.8563 | 20.0902 | 14.6144 | 19.4964 |
|
|
