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quotient
商图像 减少光照影响 可用于人脸识别的图像预处理(Business image recognition can be used to reduce illumination of the image preprocessing)
- 2011-05-27 16:33:26下载
- 积分:1
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inverter3ph
SPWM调制,三相逆变电源建模,能很好的输出三相正弦电压,(SPWM modulation, three-phase inverter power modeling, can be a good three-phase sinusoidal output voltage,)
- 2014-01-15 10:13:33下载
- 积分:1
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wiener_filtering
在一定的约束条件下,其输出与一给定函数(通常称为期望输出)的差的平方达到最小,通过数学运算最终可变为一个托布利兹方程的求解问题。维纳滤波器又被称为最小二乘滤波器或最小平方滤波器,目前是基本的滤波方法之一。维纳滤波是利用平稳随机过程的相关特性和频谱特性对混有噪声的信号进行滤波的方法,1942年美国科学家N.维纳为解决对空射击的控制问题所建立,是40年代在线性滤波理论方面所取得的最重要的成果。(Under some constraint conditions, the output with a given function (often referred to as expected output) the square of the difference between the minimum, through mathematical operation can be turned into a final taub Leeds equation to solve the problem.Wiener filter is also known as least squares filter or least square filter, is now one of the basic filter method.Wiener filtering is to use the related characteristics of stationary random process and spectrum characteristics of mixed with noise signal filtering method, scientists in the United States in 1942 n. wiener established to solve the control problem of empty shooting, is 40 s in the theory of linear filtering is the most important results.)
- 2016-03-08 13:08:44下载
- 积分:1
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EZW
jpeg compressionnnnnnnn
- 2010-01-02 09:46:46下载
- 积分:1
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lifting_97
本程序实现任意偶数大小图像第二代双正交97提升小波变换
注1: 采用标准正交方法,对行列采用不同矩阵(和matlab里不同)
注2: 为了保证正交,所有边界处理,全部采用循环处理
注3: 正交性验证,将单位阵带入函数,输出仍是单位阵(matlab不具有此性质)
注4: 此程序是矩阵实现,所以图像水平分量和垂直分量估计被交换位置
注5: 此程序实现的是类小波(wavelet-like)变换,是介于小波包变换与小波变换之间的变换
注6: 此程序每层变换相对原图像矩阵,产生的矩阵都是正交阵,这和小波包一致
注7: 但小波变换每层产生的矩阵,是相对每个待分解子块的正交矩阵,而不是原图像的正交矩阵
注8: 且小波变换产生的正交矩阵维数,随分解层数2分减少
注9: 提升系数可以在MATLAB7.0以上版本,用liftwave( 9.7 )获取,这里直接给出,考虑兼容性
注10:由于MATLAB数组下标从1开始,所以注意奇偶序列的变化
注11:d为对偶上升,即预测;p为原上升,即更新(err)
- 2008-06-25 07:59:17下载
- 积分:1
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partical-run.m
计算粒子在电场中的运动,可运行,运行方便,另附两个文件!!(study of a paticle in electronic field.)
- 2013-09-14 22:24:14下载
- 积分:1
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Matlab-Dsp
关于数字信号处理的一些matlab例程,包括各种常用函数的编写(On a number of digital signal processing matlab routines, including the preparation of a variety of commonly used functions)
- 2008-04-18 15:35:36下载
- 积分:1
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dsp_examples
The files explain aliasing , gibbs, dft and fft. All are very useful in signal processing applications and the files illustrate the contents very well with plots/graphs.
- 2009-05-24 18:46:39下载
- 积分:1
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convolve2signals
it will help in tranforming signals....,
- 2010-12-23 15:01:31下载
- 积分:1
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MATLABS-SVC--CODE
说明: 支持向量机的MATLAB代码,包括分类与回归,可帮助学习机器学习算法(MATLAB S SVC DODE)
- 2011-02-21 20:36:06下载
- 积分:1