| 基于颜色分量选取的彩色图像数字双水印算法研究 |
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| 引用本文： | 蓝夏梅,李宏昌.基于颜色分量选取的彩色图像数字双水印算法研究[J].微型机与应用,2013(21):29-31,34. |
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| 作者姓名： | 蓝夏梅 李宏昌 |
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| 作者单位： | [1]武警工程大学研究生管理大队,陕西西安710086 [2]武警工程大学理学院,陕西西安710086 |
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| 摘 要： | 针对彩色图像版权保护和完整性认证问题，提出了一种基于颜色分量选取的彩色图像数字双水印算法。水印嵌入前对DCT系数进行量化，并在DCT分块中频系数中嵌入用于版权保护的鲁棒水印，在低频系数中嵌入用于检测篡改的半脆弱水印。仿真实验表明，该算法能较好地标示版权和检测篡改。
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| 关 键 词： | 数字双水印 版权保护 完整性认证 |
Research on dual watermarking algorithm based on,the color components selection of digital color-image |
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| Lan Xiameil,Li Hongchang.Research on dual watermarking algorithm based on,the color components selection of digital color-image[J].Microcomputer & its Applications,2013(21):29-31,34. |
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| Authors: | Lan Xiameil Li Hongchang |
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| Affiliation: | 1.Graduate Management Team, Engineering University of CAPF,Xi＇an 710086,China 2.Science Institute, Engineering University of CAPF,Xi＇an 710086,China) |
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| Abstract: | With regard to the problem of color-image copyright protection and integrity of certification, this paper proposes a dual watermarking algorithm based on the color components selection of digital color-image. DCT and quantization is performed to each block before the embedding of watermark, and robust watermark is embedded in the intermediate frequency coefficients of the DCT block for copyright protection, semi-fragile watermarking is embedded in the low-frequency coefficients for tamper detection. Simulation results show that the algorithm can identify the copyright and detect the tamper. |
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| Keywords: | dual digital watermarking copyright protection integrity certification |
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