function?[OutputprintXofCenterYofCenter]?=?centralizing（fingerprintctrl）
%	?modified?by?Luigi?Rosa
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;
%**********************************
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
%------------------------?NOT?USED?----------------------------------------
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
%--------------------------------------------------------------------------
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??lev

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????..A.SH.?????48128??2005-04-20?17:32??指紋識別的matlab源碼\Thumbs.db

?????文件????????642??2004-04-26?18:18??指紋識別的matlab源碼\gabor2d_sub.m

?????文件??????66614??2001-01-11?11:56??指紋識別的matlab源碼\19_7.bmp

?????文件??????66614??2001-01-11?11:56??指紋識別的matlab源碼\37_3.bmp

?????文件??????66614??2001-01-11?11:56??指紋識別的matlab源碼\37_5_2.bmp

?????文件??????66614??2001-01-11?11:56??指紋識別的matlab源碼\37_7.bmp

?????文件?????132118??2000-08-21?00:28??指紋識別的matlab源碼\22443.bmp

?????文件???????2773??2004-04-26?18:18??指紋識別的matlab源碼\sector_norm.m

?????文件???????1203??2004-04-26?18:18??指紋識別的matlab源碼\whichsector.m

?????文件???????1947??2004-05-22?16:10??指紋識別的matlab源碼\Cropping.m

?????文件????????499??2004-06-19?20:04??指紋識別的matlab源碼\vedicentro.m

?????文件????????424??2004-06-19?20:09??指紋識別的matlab源碼\mirror.m

?????文件????????122??2004-06-19?20:10??指紋識別的matlab源碼\recrop.m

?????文件???????6943??2004-06-19?20:10??指紋識別的matlab源碼\conv2fft.m

?????文件??????11549??2004-06-23?01:04??指紋識別的matlab源碼\centralizing.m

?????文件??????20312??2004-06-28?01:11??指紋識別的matlab源碼\fprec.m

?????文件???????9849??2004-06-29?16:38??指紋識別的matlab源碼\readme.txt

?????文件?????298672??2004-06-29?16:35??指紋識別的matlab源碼\old_version.zip

?????目錄??????????0??2005-04-23?09:20??指紋識別的matlab源碼

*????文件???????4862??2006-09-29?09:08??中國圖象圖形網下載說明.html

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

???????????????806717????????????????????21