xingbo

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.)

用巴特沃斯滤波器去除图像中的椒盐噪声程序 图像增强程序(With bart wo filter to remove salt &pepper noise in the images of the program image enhancement program)

the matlab code of fading channel

详细的汉明码讲解及编程，本程序只适用传送语音信号等N*1维的矩阵数据，要是想传送灰度或者彩色图片，需要修改一下。(Hamming code in detail to explain and programming, this procedure applies only to transmission of voice signals, such as N* 1-dimensional matrix of data, if would like to send grayscale or color images, the need to make some corrections.)

Fisher线性鉴别分析方法(FLDA)(Fisher linear discriminant analysis (FLDA))

Object tracking by comparing histograms

Matlab的一个自动图像分割文字识别代码(An automatic image segmentation Matlab code text recognition)

单位反馈二阶系统，采用比例加微分控制，提前对系统产生修正(Order unity feedback system that uses proportional plus derivative control, in advance of the system to produce correction)

一个简单的求一串随机数的平均值的matlab程序(Seeking a simple string of random numbers mean matlab program)

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