Name
Abstract | ||
|---|---|---|
As an important way to protect copyright by embedding watermark in digital images, quantum watermarking catches more and more attentions. In this study, a novel quantum watermarking method on the basis of tri-way pixel value differencing and modified least significant bit (LSB) substitution is proposed. A quantum cover image using the novel-enhanced quantum image representation is partitioned into non-overlapping 2 × 2 blocks with four pixels firstly. To classify the block as a smooth area or an edge area, the tri-way pixel value differences are calculated and compared with a predefined threshold. The quantum watermark image, which is expanded and scrambled, is then embedded into a quantum cover image by the k-bit LSB substitution method, where k is decided by the level of each block. The embedded quantum watermark can be extracted from the quantum stego-image without the assistance of original quantum cover image. Theoretical analysis and simulation-based experiments demonstrate both the feasibility and capabilities of the proposed quantum watermarking method, which has good visual quality, better robustness, and higher security. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1007/s11128-018-2165-6 | Quantum Information Processing |
Keywords | Field | DocType |
Quantum image watermarking,Pixel value difference,Least significant bit,Visual quality | Quantum,Embedding,Quantum mechanics,Algorithm,Robustness (computer science),Digital image,Watermark,Pixel,Pixel value differencing,Least significant bit,Physics | Journal |
Volume | Issue | ISSN |
18 | 2 | 1573-1332 |
Citations | PageRank | References |
3 | 0.39 | 18 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Gaofeng Luo | 1 | 3 | 0.39 |
| Ri-Gui Zhou | 2 | 50 | 7.78 |
| Jia Luo | 3 | 10 | 2.55 |
| Wenwen Hu | 4 | 40 | 6.85 |
| yang zhou | 5 | 71 | 30.85 |
| Hou Ian | 6 | 23 | 2.24 |