Reversible data hiding for ordered dithered halftone images
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Orientation modulation for data hiding in clustered-dot halftone prints
IEEE Transactions on Image Processing
High-capacity reversible data hiding by maximum-span pairing
Multimedia Tools and Applications
| Hi-index | 0.00 |
In this paper, we present a simple but novel method that does not require the original watermark in decoding to embed watermarks into dithered halftone images by bit-interleaving. In general, the sub-image resulted from bit-interleaving has the property that the sub-image from the consecutive threshold value has increasing number of black pixels. Our method fully utilizes this property such that it not only needs less additive pseudo pixels to eliminate the Non-increased black pixel pairs, but also avoids false positive detection. The experiments show that the technique is sufficiently robust to guard against the cropping and tampering.