blackman0

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.)

Soluç ã o de Equaç ã o Diferencial Ordinária - Método do Ponto Médio

以MATLAB將影像做邊緣偵測以及邊緣強化， 邊緣偵測分別為Prewitt以及Canny， 邊緣強化是將邊緣做銳利化(MATLAB will do to the image edge detection and edge enhancement, edge detection, respectively Prewitt and Canny, edge enhancement is done to sharpen the edge)

里面有两个基于贝叶斯的估计，第一个是代码形式，第二个是txt格式。(There are two based on bayes estimates, the first is the code form, the second is the TXT format.)

matlab语言及动态环境编程经典之作，适合有一定开发经验的人员阅读。(matlab programming language and the classic dynamic environment, have some development experience for staff to read.)

In the previous chapters we have encountered a number of ways to process digital on

结合30个案例详细介绍了matlab神经网络的原理及应用(Principle and application details matlab neural network combined with 30 cases)

ofdm frequency diversity.........

北京大学2001年数学建模B题MATLAB算法 判断癌症的经典模型算法(Beijing university in 2001, mathematical modeling B topic MATLAB algorithm of classical model algorithm judge cancer )

本程序包给出了数值优化常用方法的程序。优化问题应用广泛。(This package gives the commonly used methods of numerical optimization procedures. Widely used optimization problem.)