Face recognition based on MATLAB GUI skin color face recognition positioning

function varargout = untitled(varargin)
% UNTITLED MATLAB code for untitled.fig
%      UNTITLED, by itself, creates a new UNTITLED or raises the existing
%      singleton*.
%
%      H = UNTITLED returns the handle to a new UNTITLED or the handle to
%      the existing singleton*.
%
%      UNTITLED('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in UNTITLED.M with the given input arguments.
%
%      UNTITLED('Property'.'Value',...). creates anew UNTITLED or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before untitled_OpeningFcn gets called.  An
%      unrecognized property name orinvalid value makes property application % stop. All inputs are passed to untitled_OpeningFcn via varargin. % % *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 untitled

% Last Modified by GUIDE v2. 5 19-May- 2020. 15:25:06

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
    'gui_Singleton',  gui_Singleton, ...
    'gui_OpeningFcn', @untitled_OutputFcn, ...
    'gui_OutputFcn',  @untitled_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 untitled is made visible.
function untitled_OutputFcn(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   command line arguments to untitled (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from thisFunction are returned to the command line. % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- pushbutton1_Callback % - (callback function) Executes on button press in pushbutton1.function pushbutton1_Callback(hObject, eventdata, handles)Global IM imyCBCR SKIN1 SKIN2 LPF %---------------- declared as global variable % hObject handle topushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
if get (gcbo, 'Value' ) = =1;
    im=imread('10.jpg'); % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- read in color image axes (handles. Axes1)set(handles.axes1, 'XMinorTick' , 'on') %------------- embedded Axes(1) callback function imshow(im); %------------------------------ displays color imageselse
    imformats
end
% Hint: get(hObject, ' Value') returns a push the state of togglebutton1% -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- pushbutton2_Callback (callback function) % - Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in afuture version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global im imycbcr skin1 skin2 lpf %------
    cr = filter2(lpf, cr) ;
    cr = reshape(cr, 1, prod(size(cr) ) ) ; bmean = mean(cb) ; % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- averaging rmean = mean (cr); brcov = cov(cb, cr) ; skin1 = zeros(dim(1) , dim(2));for i = 1: dim(1)
        for j = 1: dim(2)
            cb = double(imycbcr(i, j, 2)); cr =double(imycbcr(i, j, 3)); x =[(cb-bmean);(cr-rmean)] ; skin1(i,j) =exp(0.5*x'*inv(brcov)*x) ; % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- calculating the probability of any pixel for skin skin1 = skin1. / Max (Max (skin1)); axes(handles. axes3)set(handles. axes3, 'XMinorTick' , 'on') %------------- embedded Axes(3The callback function imshow(skin1); %------------------------------ displays skin probability imageelse
    imformats
end
% Hint: get(hObject, ' Value') returns a push the state of pushbutton3% -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- pushbutton4_Callback (callback function) % - Executes on  button press in pushbutton4. function pushbutton4_Callback(hObject, eventdata, handles) % hObject handle to pushbutton4 (see GCBO) % eventdata reserved - to be defined in afuture version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global im imycbcr skin1 skin2 lpf %----------------: 0.05
        skin2 = zeros(size(skin1,1),size(skin1,2)); skin2(find(skin1>threshold)) =1; change = sum(sum(skin2 - previousSkin2) ) ; changelist = [changelist change] ; previousSkin2 = skin2; End % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- to find the best threshold [C] I = min (for changelist); optimalThreshold = (7-I) *0.1;
    skin2 = ones(size(skin1,1),size(skin1,2)); skin2(find(skin1>optimalThreshold))=0; skin2 = filter2(lpf, skin2) ; %------------------------ median axes(handles. Axes5)set(handles. axes5, 'XMinorTick'.'on') %------------- embedded Axes(4Imshow (skin2); %------------------------------ displays skin binarization imageselse
    imformats
end
% Hint: get(hObject, ' Value') returns a push the state of pushbutton4% -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- pushbutton5_Callback (callback function) % - Executes on  button press in pushbutton5. function pushbutton5_Callback(hObject, eventdata, handles) % hObject handle to pushbutton5 (see GCBO) % eventdata reserved - to be defined in afuture version of MATLAB
% handles structure with handles andUser data (see GUIDATA) global IM imyCBCR SKIN1 SKIN2 LPF %---------------- declared as a global variableif get (gcbo, 'Value') = =1; sumarea = bwarea(skin2) ; %----------- calculate the total area of the object to prepare for discrimination by area [L,numobj] =bwlabel(skin2,8); avearea = sumarea/numobj; %----------- Calculate the average area of the object A = zeros(4, numobj) ; %179
    n = 1; % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- to get a pair of contains images of the region, only let other image area is black bwsegment = bwselect (skin2, y, x,8); % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - to calculate the number of segmentation block in the area of [L, numobjs] = bwlabel (bwsegment,4); % -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- get the number of regional hole numfeatures = bweuler (bwsegment,4); numholes =1- numfeatures; % -------------------------------- Scan to obtain region coordinates top =- 1;
        buttom =- 1;
        left = - 1;
        right = - 1;
        dim=size(bwsegment);
        for i=1:dim(1)
            for j=1:dim(2)
                if(bwsegment(i,j) ~= 0)
                    top=i;
                    break;
                end;
            end;
            if (top ~= - 1) break; end;
        end;
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Version: 2014 a