kernel2d_variance

PURPOSE ^

SYNOPSIS ^

function H = kernel2d(tam,varianza)

DESCRIPTION ^

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 
0002 function H = kernel2d(tam,varianza)
0003 
0004 fN=32;
0005 
0006 lcuan=tam;
0007 
0008 fx = linspace(0,fN,tam);
0009 fy = fx;
0010 
0011 Fx = repmat(fx,tam,1);
0012 Fy = repmat(fy',1,tam);
0013 
0014 F=sqrt(Fx.^2+Fy.^2);
0015 
0016 fx=zigzag(Fx);
0017 fy=zigzag(Fy);
0018 f=zigzag(F);
0019 
0020 ind=find(f==0);
0021 
0022 H=zeros(lcuan^2,lcuan^2);
0023 
0024 cont = 1;
0025 for i=1:lcuan
0026    for j=1:lcuan
0027       hh=exp(-((Fx-fx(cont)).^2+(Fy-fy(cont)).^2)/varianza);
0028       H(cont,:)=(zigzag(hh))';
0029       cont = cont + 1;
0030    end
0031 end
0032 
0033 H = H(2:end,2:end);
0034 
0035 H = H./ repmat(sum(H,2),1,lcuan^2-1);
0036

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