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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分：1
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poincare
绘制庞加莱图程序可做学习使用非线性动力学分析(Drawing a Poincare program can be used for learning Nonlinear Dynamics Analysis)
- 2021-04-24 11:48:46下载
- 积分：1
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111111
基于OTSU的图像二值化分割，本程序是从视频中截取某一帧来实现(OTSU-based binary image segmentation, this program is a frame from the video to achieve the interception)
- 2010-12-07 13:37:22下载
- 积分：1
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OFDM_Receiver
The model of OFDM receiver using Matlab.
- 2010-02-19 09:39:30下载
- 积分：1
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mpc
说明： 一个有关于MATLAB OPC方面的实例(A Examples of MATLAB OPC)
- 2010-04-18 14:58:30下载
- 积分：1
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matlab
模式识别中的线性分类器的设计，包括感知机，最小二乘法和支撑矢量机的算法的MATLAB代码。(Pattern Recognition linear classifier design, including perception, least squares and support vector machine algorithm MATLAB code.
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- 2010-05-24 15:20:34下载
- 积分：1
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SINS-Alignment(matlab)
捷联惯导初始对准的程序 matlab写的 包括动基座和静基座对准。(Initial Alignment of SINS program written in matlab, including dynamic and static alignment.)
- 2011-05-30 16:29:25下载
- 积分：1
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MatLab7
MatLab7编程基础ppt, 适合新手(MatLab7 programming basics ppt, for novice)
- 2012-05-13 10:57:43下载
- 积分：1
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MATLAB-7
MATLAB 7 界面设计与编译技巧,适合初学者，详细地介绍了如何进行matlab GUI的设计(MATLAB 7 interface design and compilation techniques, suitable for beginners, detailed description of how the design of matlab GUI)
- 2011-05-13 10:40:12下载
- 积分：1
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newbiaoding4
磁电编码器的标定程序，通过对磁电编码器的标定，得到更高精度的编码器(Magnetic encoder calibration procedure, by the calibration of the magnetic encoder to obtain a more accurate encoder)
- 2015-01-22 15:34:50下载
- 积分：1
