【指纹识别】基于matlab GUI指纹预处理+特征点提取【含Matlab源码 1693期】

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function varargout = Fingerprint_gui(varargin) %FINGERPRINT_GUI M-file for Fingerprint_gui.fig %      FINGERPRINT_GUI, by itself, creates a new FINGERPRINT_GUI or raises the existing %      singleton*. % %      H = FINGERPRINT_GUI returns th handle to a new FINGERPRINT_GUI or the handle to
%      the existing singleton*.
%
%      FINGERPRINT_GUI('Property','Value',...) creates a new FINGERPRINT_GUI using the
%      given property value pairs. Unrecognized properties are passed via
%      varargin to Fingerprint_gui_OpeningFcn.  This calling syntax produces a
%      warning when there is an existing singleton*.
%
%      FINGERPRINT_GUI('CALLBACK') and FINGERPRINT_GUI('CALLBACK',hObject,...) call the
%      local function named CALLBACK in FINGERPRINT_GUI.M with the given input
%      arguments.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help Fingerprint_gui

% Last Modified by GUIDE v2.5 03-Jan-2022 18:00:46

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
    'gui_Singleton',  gui_Singleton, ...
    'gui_OpeningFcn', @Fingerprint_gui_OpeningFcn, ...
    'gui_OutputFcn',  @Fingerprint_gui_OutputFcn, ...
    'gui_LayoutFcn',  [], ...
    'gui_Callback',   []);
if nargin && ischar(varargin{ 
        1})
    gui_State.gui_Callback = str2func(varargin{ 
        1});
end

if nargout
    [varargout{ 
        1:nargout}] = gui_mainfcn(gui_State, varargin{ 
        :});
else
    gui_mainfcn(gui_State, varargin{ 
        :});
end

% End initialization code - DO NOT EDIT


% --- Executes just before Fingerprint_gui is made visible.
function Fingerprint_gui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   unrecognized PropertyName/PropertyValue pairs from the
%            command line (see VARARGIN)

% Choose default command line output for Fingerprint_gui
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes Fingerprint_gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = Fingerprint_gui_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{ 
        1} = handles.output;


% --- Executes when figure1 is resized.
function figure1_ResizeFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


% --- Executes on button press in BW.
function BW_Callback(hObject, eventdata, handles)
% hObject    handle to BW (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
I = handles.OriginalImage;
level = graythresh(I);
BWimg = im2bw(I, level);
handles.BWimg=BWimg;
set(handles.Thining,'enable','on');
axes(handles.axes2);
% set(gca,'NextPlot','add');
hImg_BW=imshow(BWimg);
handles.hImg_BW=hImg_BW;
set(hImg_BW,'ButtonDownFcn',{ 
        @ImgButtonDown,handles});
guidata(hObject,handles);

% --- Executes on button press in Thining.
function Thining_Callback(hObject, eventdata, handles)
% hObject    handle to Thining (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global addenable;
addenable=0;
J = handles.BWimg;
Thin_img=bwmorph(~J,'thin','inf');
axes(handles.axes2);
hImg_T=imshow(~Thin_img);
handles.Thin_img=Thin_img;
handles.hImg_T=hImg_T;
set(hImg_T,'ButtonDownFcn',{ 
        @Img1ButtonDown,handles});
set(handles.endpoint,'enable','on');
set(handles.bifurcation,'enable','on');
guidata(hObject,handles);
set(handles.add,'enable','on');


% --- Executes on button press in endpoint.
function endpoint_Callback(hObject, eventdata, handles)
% hObject    handle to endpoint (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global enden;global CentroidFinX;global CentroidFinY;
enden=1;
end_img = handles.Thin_img;
fun=@filter_model;
L = nlfilter(end_img,[3 3],fun);
Lend_point=(L==1);
for i=1:384
    for j=1:288
        if Lend_point(i,j)==1
            if sum(end_img(i,1:j))==1||sum(end_img(i,j:288))==1 ...
                    ||sum(end_img(1:i,j))==1||sum(end_img(i:384,j))==1
                Lend_point(i,j)=0;
            end
        else
            continue;
        end
    end
end
LFinLab=bwlabel(Lend_point);
propFin=regionprops(LFinLab,'Centroid');
CentroidFin=round(cat(1,propFin(:).Centroid));
CentroidFinX=CentroidFin(:,1);
CentroidFinY=CentroidFin(:,2);
axes(handles.axes2);
hold on;
hImg_end=plot(CentroidFinX,CentroidFinY,'r.');
handles.hImg_end=hImg_end;
set(hImg_end,'ButtonDownFcn',{ 
        @Img2ButtonDown,handles});
handles.Lend_point=Lend_point;
set(handles.delete,'enable','on');
guidata(hObject,handles);

1 matlab版本 2014a

2 参考文献 [1] 蔡利梅.MATLAB图像处理——理论、算法与实例分析[M].清华大学出版社，2020. [2]杨丹,赵海滨,龙哲.MATLAB图像处理实例详解[M].清华大学出版社，2013. [3]周品.MATLAB图像处理与图形用户界面设计[M].清华大学出版社，2013. [4]刘成龙.精通MATLAB图像处理[M].清华大学出版社，2015. [5]刘艳华.基于MATLAB/GUI的指纹识别系统设计[J].信息与电脑(理论版). 2021,33(18)