| 基于量化器优化的JPEG信息隐藏算法 |
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| 引用本文： | 古力,隋永新,郭景富,杨怀江. 基于量化器优化的JPEG信息隐藏算法[J]. 长春理工大学学报(自然科学版), 2004, 27(2): 104-106,109 |
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| 作者姓名： | 古力 隋永新 郭景富 杨怀江 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所,长春,130022;中国科学院研究生院;中国科学院长春光学精密机械与物理研究所,长春,130022 |
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| 摘 要： | 在以保密通信为应用背景的信息隐藏算法中,如何在JPEG文件隐藏大量的信息是一个较有挑战性的问题.本文对在JPEG文件中的高频区隐藏信息的算法进行了介绍分析.并针对该算法在隐藏信息量较大时,载体图像的视觉质量下降较大的缺点,提出了一种基于量化器优化设计的信息隐藏算法.该算法通过量化器的优化设计来抑制嵌入信息时引入的高频噪声,从而达到改善载体图像视觉质量的目的.实验结果证明,这种方法能大量的减少高频噪声的引入.
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| 关 键 词： | 保密通信 信息隐藏 量化器 |
| 文章编号： | 1004-485X(2004)02-0104-03 |
| 修稿时间： | 2004-01-06 |
Data Hiding Algorithm Based on Optimized Quantizer in JPEG |
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| GU Li , SUI Yong-xin GUO Jing-fu YANG Huai-jiang. Data Hiding Algorithm Based on Optimized Quantizer in JPEG[J]. Journal of Changchun University of Science and Technology, 2004, 27(2): 104-106,109 |
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| Authors: | GU Li SUI Yong-xin GUO Jing-fu YANG Huai-jiang |
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| Affiliation: | GU Li 1,2 SUI Yong-xin 1 GUO Jing-fu 1 YANG Huai-jiang 1 |
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| Abstract: | In data hiding algorithm that faced to conceal communication application, it is a difficult problem that much information is hided in a JPEG file. In this article,we introduced the data hiding algorithm in the high frequency region of JPEG files. Because this algorithm had a shortcoming that the carrier image had perceptible degrade when hidden data was much. A data hiding algorithm based on optimized quantizer in JPEG was proposed. This algorithm restricted the high-frequency noise by optimizing quantizer and improved visual quality of the carrier image. Experimental results show that this algorithm can reduce the high-frequency noise very much. |
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| Keywords: | Conceal communication Data hiding Quantizer |
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