基于小波变换域的煤矿数字图件安全传输方法研究  

Research on Method of Safety Transmission of Coal Mine Digital Images Based on Wavelet Transform

作　　者：石强 陈默[2] 薛阳[3] 余桂希 余桂莲 余生晨[2] 

机构地区：[1]高河能源有限公司,山西长治047100 [2]华北科技学院,北京东燕郊101601 [3]北京政法职业学院,北京市102600 [4]宁夏中卫市海原县职业中学,宁夏海原755200 [5]宁夏固原市原州第五中学,宁夏固原756000

出　　处：《华北科技学院学报》2015年第4期69-74,4,共6页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助(3142015103)

摘　　要：为了通过网络安全的传输煤矿数字图件,提出了把煤矿数字图件隐藏在一幅图像(风景图或不重要的煤矿图像)中,但又不明显的改变原图像的质量和视觉效果,这种改变很小,以致于在人类的视觉上,感觉不到这些改变。在具体实现方面,首先用小波变换把载体图像分解,然后把煤矿数字图件信息隐藏在载体图像的中频部分,嵌入的能量用基因算法自动控制,以便在煤矿数字图像的隐藏性(不易被察觉)与鲁棒性(当被保护的信息经过某种改动后,不容易被破坏)之间达到平衡。实验证明该方法安全的传输煤矿数字图件的效果较好。In order to transmit coal mine digital images through the network securely, a new method for transmitting coal mine digital maps through information hiding is put forward in the paper, in which method, coal mine digital images are hidden to an vector image （ such as, landscape or unimportant coal mine image）, and the energy of hidden image is so small that these changes can＇t be felt in human vision. In the concrete realization, firstly, the carrier image is decomposed by wavelet transform, then the digital mine image information is hidden in the intermediate frequency part of the carrier image. The embedded energy is controlled automatically by using genetic algorithm, so as to balance the unobtrusiveness and robustness of the hidden coal mine digital image. The unobtrusiveness is that embedded coal mine digital image information is not easily perceived, and the robustness is that the protected information is not easily destroyed after a certain changes. Ex-periment results shows that the method is effective.

关 键 词：煤矿数字图件 安全传输 小波变换 

分 类 号：X936[环境科学与工程—安全科学]