Jack_genetic_algo

decompose the input images into subbands

PCA-SIFT算法中用于训练矩阵的程序(training matrix in PCA-SIFT)

阵列信号处理的高分辨率估计，包括广义互相关函数GCC时延估计，三相光伏逆变并网的仿真。( High-resolution array signal processing estimates, Including the generalized cross-correlation function GCC time delay estimation, Three-phase photovoltaic inverter and network simulation.)

在matlab环境下利用LSB最低有效位算法将一个图片水印隐藏在载体图片中，并对被隐藏那个信息进行提取。(Matlab environment in the use of least significant bit LSB algorithm will be a picture watermark hidden in the picture carrier, and that information has been extracted hidden.)

比例导引理想弹道仿真Matlab代码请查阅(比例导引理想弹道仿真Matlab代码)

revised simlution four level bad

matlab code for communication

关于复杂网络社团结构的相关程序，其中包括求节点间最短距离，求边介数等等。(There are some procedures about community structure of comlex network which includes the shortest distance between nodes and betweeness and so on.)

说明：  上传的是Levenberg-Marquardt算法的Matlab程序(Upload is the Levenberg-Marquardt algorithm in Matlab)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.