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iris and fingerprint feature fusion

It is mainly used for fingerprint recognition in matlab

Returns Number of ports on the interface. Zero to disable.

给出了经典的粒子群优化算法的matlab实现方法，并结合测试函数，显示算法的寻优能力(Gives a classical particle swarm optimization algorithm matlab implementation, combined with the test function, the ability to display optimization algorithm)

Spectrum Digital tests example dm365

《数字图像处理》(Matlab版)第八章中JPEG的近似实现，附带了自己的注释(" Digital Image Processing" (Matlab version) Chapter VIII of the approximate realization of JPEG, with my own comments)

说明：  条纹骨架提取，用来提取条纹骨架，不过效果不是特别好，大家凑合看那(stripe skeleton extraction, used to extract block skeleton, but results are not particularly good, we improvise watch)

说明：  基于Matlab Simulink的仿真方法研究(Matlab Simulink-based simulation method)

采用matlab解微分方程，讲解比较详细，值得看看(Using matlab for solving differential equations, to explain in more detail, is worth a look)

对于非平稳信号，用emd分解后，进行hibert变换后，输出时频三维图，(Output frequency of the three-dimensional map)