Name
Title | ||
|---|---|---|
A robust image watermarking scheme in DCT domain based on adaptive texture direction quantization |
Abstract | ||
|---|---|---|
This paper proposes a novel robust image watermarking scheme in Discrete Cosine Transform (DCT) domain for active forensics. We investigate the relation between the positions and the modification magnitudes of DCT coefficients and directions of texture blocks. By exploring such relation, a direction-coefficient mapping is designed. First, the texture direction of each image block is estimated by Gabor filter. And then, according to the direction-coefficient mapping, one watermark bit is embedded into each block along its texture direction. Compared with existing schemes, the proposed method utilizes the direction features of texture blocks better . Therefore, the improvements in watermarked image quality and the robustness of watermark signal against image processing attacks are both achieved. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1007/s11042-018-6596-y | Multimedia Tools and Applications |
Keywords | Field | DocType |
Active forensics, Robust watermarking, Gabor filter, Texture direction, Direction-coefficient mapping | Computer vision,Digital watermarking,Pattern recognition,Computer science,Discrete cosine transform,Image quality,Image processing,Watermark,Robustness (computer science),Gabor filter,Artificial intelligence,Quantization (signal processing) | Journal |
Volume | Issue | ISSN |
78.0 | 7 | 1573-7721 |
Citations | PageRank | References |
0 | 0.34 | 18 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Han, Fang | 1 | 48 | 10.86 |
| Hang Zhou | 2 | 72 | 14.04 |
| Hang Zhou | 3 | 72 | 14.04 |
| Weiming Zhang | 4 | 1104 | 88.72 |
| Nenghai Yu | 5 | 2238 | 183.33 |