find eigenvalues matlab

For a two-dimensional signal, such as grayscale images, the range of gray values is 0-255, so as long as the pixel gray value (0-255) appears in the probability, you can calculate the information entropy.However, for a one-dimensional signal, such as ECG, the range of data values is not deterministic, will not be (0-255) so determined, if the domain value transformation, so that the conversion to an integer range, it will lose data, please expert guidance, how to calculate.For example, the digi

One, the code#include Second, the operation result:Third, using MATLAB to verify the resultsC + + implements MATLAB One-dimensional array function Findpeaks () function to find one-dimensional discrete extremum (crest trough)

Microsoft Visual Studio C + + SP1 and SDK 7.1 already installed, but running into various errors Durin G compilation, apply the SDK 7.1 patch to fix the issue. "Ammintrin.h Missing" error This occurs if only SDK 7.1 is installed (without Microsoft Visual C + + SP1 present on the machine), and then the SDK 7.1 Patch is applied. In the case: Install Visual Studio C + + (if not already installed). Either Professional or Express works. Upgrade Visual Studio C + + to SP1 Supporting LINKS and instruc

can get out of the local optimal and find the most advantage. Moreover, genetic algorithms allow the use of very complex fitness functions (or target functions) and limit the range of variables to be changed.Ii. ga function in matlab X = GA (FITNESSFCN, Nvars)This is the simplest invocation method of GA function, where FITNESSFCN is the objective function, its parameters should be constant, and nv

Turn from http://www.cnblogs.com/tiandsp/archive/2012/01/07/2316006.html thanks to DSP TianClearCLCimg = imread (' 124.jpg '); % Read image from graphics file[m n T] = size (IMG); % Get pattern sizemax = 0;min = 256;Avg = 0;For I =1:1:mfor j = 1:1:nIf IMG (i,j) Min = img (i,j);EndIf IMG (i,j) >maxMax = img (i,j);EndAVG = AVG +double (img (i, j));EndEndAvg = uint8 (avg/(m*n));MNTMaxMinAvgHow to read and write image files in MATLAB and simple processing

Clear All;close all;clcimg=imread (' lena.bmp '); Imshow (Uint8 (IMG)); [M N]=size (IMG); img_max=0;img_min=256;img_avg=0;for i=1:1:m for j=1:1:n if IMG (i, j) img_max img_max=img (i,j); End Img_avg=img_avg + uint8 (img (i,j)); Endendimg_avg=uint8 (img_avg/(m*n)); img_maximg_minimg_avg　　MATLAB-Practice program, to find the gray image mean, maximu

After multiple searches, this problem was originally very simple. In the environment variable classpath, configure c: \ MATLAB \ r2012a \ toolbox \ javabuilder \ jar \ win64 \ javabuilder. Jar Note that if the entire environment is 64-bit, it must be a correct version. After the Eclipse project is called, The DLL cannot be found; I keep searching, but I always feel that my configuration is the same as that provided on the Internet; In the end, I a

function Zeroindex=pickzero (x)% find the 0 value of the array and over 0 points (the positive and negative intersection, may deviate from 0)m = length (x);X1=x (1:m-1);X2=x (2:M);Indz = Find (x==0); %zero PointIndzer = Find (x1.*x2N=length (Indzer);For I=1:nIf ABS (x (Indzer (i))) >abs (x (Indzer (i) +1))Indzer (i) =indzer (i) +1;EndEndZeroindex=sort ([Indz indz

internet, unfortunately, no dictionary can provide word search functions. Although wildcard characters can be used in dictionary software such as Kingsoft, It is very troublesome to use wildcard characters to search for near words. I made a simple small program, which helped me memorize words. Method This problem is actually a word form approximation problem [4]. in fact, it is the same with spell checking [3] to automatically provide spell suggestion and spell correction based on word simila