摘要
A method based on DCT-domains of color channels was proposed. Digital watermarking was used to prevent illicit copying and distribution of copyrighted materials. This method embedded digital watermarking information into DCT-domains of color channels. The correlation values between the color-channel DCT (Discrete Cosine Transform) coefficients were satisfied through utilizing statistical characteristics; by means of these characteristics the selected sets of DCT coefficients could be modified to make the correlation coefficients show such specific distribution that a binary string could embedded into the image. Experimental results demonstrate that the watermark produced by this method is robust against attacks by most of the image and signal processing techniques.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 70-74 |
| 页数 | 5 |
| 期刊 | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University |
| 卷 | 20 |
| 期 | 1 |
| 出版状态 | 已出版 - 2月 2002 |