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11
说明: empirical formula with kaiser
clc
clear all
fs=1000
fc=250
df=50
r=0.001
f=fc/fs
dw=2*pi*(df/fs)
a=-20*log(r)
n=floor(((a-8)/(2.285*dw))+1)
if a>50
b=0.1102*(a-8.7)
elseif a>=21 && a<=50
b=0.5842*((a-21)^0.4)+0.07886*(a-21)
elseif a<21
b=0.0
end
w=kaiser(n,b)
for i=1:n
if i~=(n-1)/2
hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f)
elseif i==(n-1)/2
hd(i)=2*f
end
end
for j=1:n
h(j)=w(j)*hd(j)
end
subplot(3,1,1), plot(w)
subplot(3,1,2), plot(h)
subplot(3,1,3), plot(h,n)
- 2014-12-24 23:20:03下载
- 积分:1
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图像镜像
Visual c++Matlab图像处理与实用案例精选:图像镜像(Visual c Matlab Image Processing and practical case Featured : Mirror Image)
- 2005-02-01 00:11:44下载
- 积分:1
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qgp
对心电的图像进行50hz的工频干扰并画出去处理后的图像(The image of ecg 50 hz power frequency interference and the processed image is drawn out
)
- 2015-05-11 11:43:43下载
- 积分:1
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Logos
说明
在此分类的PRJ我们试图通过分配给每个签名的两个不同的公司标识由一个特别号码提取水平和垂直扫描每幅图像矩阵。每个标志图片被截断成二进制后调整大小。这是由核心例行imcount.m,而主编testpng.m运行compelte测试结果显示出来。每个标识的痕迹便可以进一步处理像一个合适的神经网络学习,推理机等熵类分类指数使用的系统是更好的有关报告,从http://cag.dat下载的解释。 demokritos.gr/publications/TR2011-1.pdf。
该例程index0.m提取每个图像矩阵的行/列聚类分析,现在可以用来替换为最新版本的“cluster.m“另一包“DEC2NARY“我们Mathworks公司提供的帐户中。
MATLAB的MATLAB的版本7.4(R2007a)(Description
In this prj we attempt to classify a number of Company Logos by assigning to each 2 distinct signatures extracted by a special horizontal and vertical scan of each image matrix. Each Logo picture is truncated to binary after resizing. This is done by the core routine imcount.m, while the main prog testpng.m runs a compelte test and displays results. Traces of each Logo could then be further processed by an appropriate learning system like a Neural Net, an Inference Engine, etc. The entropic-like index used for classification is better explained in the associated report downloadable from http://cag.dat.demokritos.gr/publications/TR2011-1.pdf.
The routine index0.m used for extracting the cluster analysis of each image matrix row/col can now be replaced by a most recent version "cluster.m", contained in another package "DEC2NARY" available by our Mathworks account.
MATLAB release MATLAB 7.4 (R2007a)
)
- 2011-05-15 00:24:03下载
- 积分:1
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matlab-codes
几十个matlab实用小程序 初学者可以参考学习(Dozens of matlab program beginners can refer to learning)
- 2012-04-27 15:12:22下载
- 积分:1
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qpsk1
Matlab code for OFDM for bpsk
- 2014-02-04 19:30:13下载
- 积分:1
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test
一个简单的水平集演化的matlab仿真,带注释。便于初学matlab,图像处理以及水平集的同学学习。(A simple level set matlab simulation, with comments. Easy beginner matlab, image processing and level set of students to learn.)
- 2010-06-05 19:04:44下载
- 积分:1
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MATLAB-Code-(2)
this is a book and its source code
- 2011-08-06 07:47:07下载
- 积分:1
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simpson
自适应simpson法求函数的定积分,包括naadapt函数和simpson函数(failed to translate)
- 2009-11-17 13:14:34下载
- 积分:1
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r-lda
使用基于LDA算法的人脸识别程序,附有相应的论文(LDA algorithm based on the use of face recognition procedure, with the corresponding papers)
- 2007-01-25 13:35:36下载
- 积分:1