Research Article
A Reliable Image Watermarking Scheme Based on Redistributed Image Normalization and SVD
Table 1
Illustration of invariant features of the redistributed normalization.
| | Operation | Image and its singular value | Normalized image and its singular value | | Matrix | Singular value of blocks | Matrix | Singular value of blocks |
| | Original | | | | |
| | Rotate 90 degrees | | | | |
| | Flip rows | | | | |
| | Flip column | | | | |
|
|
