Matlab-codes

该代码是用分形技术来进行纹理分析及混沌序列来实现密写(The code is used fractal texture analysis techniques to conduct and chaotic sequence to achieve Steganography)

罚函数法是将有约束最优化问题转化为求解无约束最优化问题。在此给出罚函数法的Matlab源程序。(Penalty function method is a constrained optimization problem into solving unconstrained optimization problems. This gives the penalty function in Matlab source.)

利用马斯京根原理，根据水文气象等历史数据进行下一时段的预测。(According to Muskingum principle,the forecast of the next time can be drawn by the historical hydro-meteorological data.)

Another advantage is that geometric properties of the curve are easily determined from a particular level set of the surface . For example, the normal vector for any point on the curve C is given by:

基于matlab的一维条形码识别程序，条码为通用的EAN一13条码 (The bar code recognition program based on MATLAB)

This tests the new String object method: concat.

基于matlab 来开发QR识别和译码程序，运用图像校正、二值化、边缘检测等各种图像处理方法实现条码的预处理，并进行QR码的解码和纠错算法，充分利用面向对象的方法，结合图像处理技术，完成了基于图像处理的QR码快速识别的解码系统。(Based on Matlab QR recognition and decoding procedures, the use of the image correction, binarization, edge detection, and other various image processing methods to achieve the pretreatment of the code, and a QR code decoding and error correction algorithm, the full use of the object-oriented approach, combined with image processing technology, based on the completion of image processing QR code decoding system to quickly identify.)

相关噪声模型和相关函数计算 相关函数是平稳随机过程的重要数字特征，根据观测记录的信号波形或者一串数据序列，来估计该信号的自相关函数是信号处理的重要方法之一。(correlation noise model and correlation function)

average dithering matlab

使用MATLAB的GUI接口设计一个简单的计算器，实现两个数的基本运算。(Use the GUI interface of MATLAB to design a simple calculator,realizing basic operations of two numbers.)