摘要
In this paper, we introduce a new multiresolution water-marking method for digital images. The method is based on the discrete wavelet transform (DWT). Pseudo-random codes are added to the large coefficients at the high and middle frequency bands of the DWT of an image. It is shown that this method is more robust to proposed methods to some common image distortions, such as the wavelet transform based image compression, image rescaling/stretching and image halftoning. Moreover, the method is hierarchical.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 497-511 |
| 页数 | 15 |
| 期刊 | Optics Express |
| 卷 | 3 |
| 期 | 12 |
| DOI | |
| 出版状态 | 已出版 - 12月 1998 |
| 已对外发布 | 是 |