system_response

这段代码是从类平均向量中提取判别信息的matlab代码(This code is from the category average Discriminant Vector extract information matlab code)

应用matlab程序，实现了对手写数字的识别，准确率非常高。(Matlab application procedures, to achieve the hand-written digit recognition, the accuracy rate is very high.)

自适应中的牛顿法。结论，当u靠近0.5时，wk 迅速增加到最佳权， 当u小于0.5时，wk 沿着一个方向单向靠近最佳权；u大于0.5时wk沿着起始点指向最佳权的方向左右振荡并向最佳权收敛 ！ (The Newton method adaptive. Conclusion, when u close to 0.5, wk quickly right to the best, when u is less than 0.5, wk along the a direction close to the best the right way u greater than 0.5 wk point along the starting point about the best direction for the right to the right of oscillation and convergence of the best!)

一种数字图像信息隐藏算法，包含MATLAB程序和文献，非常有帮助。(A digital image information hiding algorithm, including MATLAB procedures and documentation, very helpful.)

matlab小波算法实现，有源程序,可以实现多种图像处理过程(matlab wavelet algorithm, has the source code, you can realize a variety of image processing)

用递归法将一个整数n转换成字符串（例如输入4679，应输出字符串“4679”），n为不确定数，可以是位数不超过5，且数值在-32768~32767之间的任意整数。 (Recursive method to convert a string to an integer n (for example, type 4679, should output the string " 4679" ), n is the number of uncertainty, which can be not more than 5 digits, and the values in an arbitrary-32768 ~ 32767 integer.)

Arithmetic average of some numbers

说明：  在matlab中经常用到的函数，用来实现利用3阶，44阶函数(Often used in matlab, used to realize the function of 3 order, 44 order function)

基于四向最小二乘解包裹算法，可以实现对包裹相位的相位展开(forth DCT phase unwrapping alogrithm)

This code is for DWT Chain process in filtering