function?[OutputprintXofCenterYofCenter]?=?centralizing（fingerprintctrl）
global?immagine?n_bands?h_bands?n_arcs?h_radius?h_lato?n_sectors?matrice

x=[-16:1:16];
y=[-16:1:16];
dimx=size（x2）;
dimy=size（y2）;
%?varianza?gaussiana?ordine?filtro?complesso
varianza=sqrt（55）;
ordine=1;
gamma=2;
filtro_core=zeros（dimxdimy）;
filtro_delta=zeros（dimxdimy）;
for?ii=1:dimx
????for?jj=1:dimy
????????esponente=exp（-（x（ii）^2+y（jj）^2）/（2*varianza^2））;
????????%?filtro?core
????????fattore=x（ii）+i*y（jj）;
????????filtro_core（iijj）=esponente*fattore^ordine;
????????%?filtro?delta????????
????????fattore=x（ii）-i*y（jj）;
????????filtro_delta（iijj）=esponente*fattore^ordine;
????end
end
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
%------------------------------------
%?The?low-pass?filter?---------------
%------------------------------------
%?Gaussian?Low?Pass?Filter?----------
%------------------------------------
x=[-16:1:16];
y=[-16:1:16];
dimx=size（x2）;
dimy=size（y2）;
varianza=sqrt（1.2）;
filtro=zeros（dimxdimy）;
for?ii=1:dimx
????for?jj=1:dimy
????????esponente=exp（-（x（ii）^2+y（jj）^2）/（2*varianza^2））;
????????filtro（iijj）=esponente;
????end
end
%?normalization
filtro=filtro/sum（sum（filtro））;?
%------------------------------------
%------------------------------------
img=fingerprint;
img=double（img）;
%--------------------------------------------------------------------------
%?complex?field?at?0?level
[gxgy]=gradient（img）;
num=（gx+i*gy）.^2;
den=abs（（gx+i*gy）.^2）;
pos=find（den）;
num（pos）=num（pos）./den（pos）;
z=zeros（size（img1）size（img2））;
z（pos）=num（pos）;
pos=find（den==0）;
z（pos）=1;
%**********************************
%--------------------------------------------------------------------------
if?1==0%-------------------------------?---------------------->?vecchio?algoritmo?che?risale?piramide?gaussiana
????%-------------------------------------
????%?complex?field?at??level?1
????z1=conv2fft（zfiltro‘same‘）;
????z1=dyaddown（z11‘m‘）;
????num=z1;
????den=abs（z1）;
????pos=find（den）;
????num（pos）=num（pos）./den（pos）;
????z1=zeros（size（z11）size（z12））;
????z1（pos）=num（pos）;
????pos=find（den==0）;
????z1（pos）=1;
????%**********************************
????%-------------------------------------
????%?complex?field?at??level?2
????z2=conv2fft（z1filtro‘same‘）;
????z2=dyaddown（z21‘m‘）;
????num=z2;
????den=abs（z2）;
????pos=find（den）;
????num（pos）=num（pos）./den（pos）;
????z2=zeros（size（z21）size（z22））;
????z2（pos）=num（pos）;
????pos=find（den==0）;
????z2（pos）=1;
????%**********************************
????%-------------------------------------
????%?complex?field?at??level?3
????z3=conv2fft（z2filtro‘same‘）;
????z3=dyaddown（z31‘m‘）;
????num=z3;
????den=abs（z3）;
????pos=find（den）;
????num（pos）=num（pos）./den（pos）;
????z3=zeros（size（z31）size（z32））;
????z3

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????10752??2008-05-30?15:01??源程序\centralizing.m

?????文件???????5635??2008-06-06?00:19??源程序\conv2fft.m

?????文件???????1921??2008-05-15?09:47??源程序\Cropping.m

?????文件??????10263??2008-06-09?16:26??源程序\fprec.m

?????文件??????18616??2008-06-12?11:08??源程序\fp_database.dat

?????文件????????616??2008-05-15?09:48??源程序\gabor2d_sub.m

?????文件???????2866??2009-11-20?16:25??源程序\GUI.m

?????文件??????66614??2008-06-05?22:39??源程序\Left?loop?salt.bmp

?????文件??????66614??2001-01-11?11:56??源程序\Left?loop.bmp

?????文件??????66616??2008-06-05?22:38??源程序\Left?loop180.bmp

?????文件????????424??2004-06-19?20:09??源程序\mirror.m

?????文件?????132118??2000-08-21?00:28??源程序\other.bmp

?????文件????????122??2004-06-19?20:10??源程序\recrop.m

?????文件??????66614??2008-06-05?22:40??源程序\Right?loop?salt.bmp

?????文件??????66614??2001-01-11?11:56??源程序\Right?loop.bmp

?????文件??????66616??2008-06-05?22:37??源程序\Right?loop180.bmp

?????文件???????2747??2008-05-15?09:48??源程序\sector_norm.m

?????文件??????66614??2008-06-05?22:32??源程序\Twin?loop?salt.bmp

?????文件??????66614??2001-01-11?11:56??源程序\Twin?loop.bmp

?????文件??????66616??2008-05-28?09:21??源程序\Twin?loop180.bmp

?????文件????????382??2009-11-20?16:18??源程序\Untitled.m

?????文件????????499??2004-06-19?20:04??源程序\vedicentro.m

?????文件???????1176??2008-05-15?09:48??源程序\whichsector.m

?????文件??????66614??2008-06-05?22:42??源程序\Whorl?salt.bmp

?????文件??????66614??2001-01-11?11:56??源程序\Whorl.bmp

?????文件??????66616??2008-05-28?09:19??源程序\Whorl180.bmp

?????目錄??????????0??2009-11-20?17:18??源程序

-----------?---------??----------?-----??----

???????????????987513????????????????????27



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