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本程序包括大部份复数处理函数：abs（）、arg（）、conj（）、sin（）、cos（）、sinh（）、cosh（）、exp（）、log（）、log10（）、norm（）、polar（）、pow（）、sqrt（）等。-look it yourself.

This version of the 2D Gabor filter is basically a bi-dimensional Gaussian function centered at origin (0,0) with variance S modulated by a complex sinusoid with polar frequency (F,W) and phase P.-This version of the 2D Gabor filter is basically a bi