【圖像識別】基于二維條形碼識別matlab 源碼含GUI
?一、簡介
基于matlab GUI二維條形碼的識別
二、源代碼
function varargout = untitled(varargin)
% UNTITLED M-file 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 a new 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 or invalid 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 03-Nov-2011 13:59:22
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', ? ? ? mfilename, ...
? ? ? ? ? ? ? ? ? 'gui_Singleton', ?gui_Singleton, ...
? ? ? ? ? ? ? ? ? 'gui_OpeningFcn', @untitled_OpeningFcn, ...
? ? ? ? ? ? ? ? ? '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_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 ? command line arguments to untitled (see VARARGIN)
% Choose default command line output for untitled
handles.output = hObject;
image1=imread('C:\Users\lenovo\Desktop\61602302barcodehcc\barcodehcc\1.bmp');
axes(handles.axes1);
imshow(image1);
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes untitled wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = untitled_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 on mouse press over axes background.
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject ? ?handle to pushbutton1 (see GCBO)
% eventdata ?reserved - to be defined in a future version of MATLAB
% handles ? ?structure with handles and user data (see GUIDATA)
global im;
%提取條形碼區(qū)域構(gòu)成的矩形的左上角坐標(biāo)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
image=im;
l1=rgb2gray(image);
level=graythresh(l1);
l2=im2bw(l1,level);
l3=~l2;
l4=bwareaopen(l3,50);
l5=~l4;
l6=edge(l1,'canny');
l7=imclose(l6,strel('rectangle',[2,19]));
l8=imopen(l7,strel('rectangle',[2,19]));
l9=imopen(l8,strel('rectangle',[2,19]));
[L,num]=bwlabel(l9,8);
STATS=regionprops(L,'all');
a=length(STATS);
%figure,imshow(L);
%hold on;
b=0;
for i=1:a
? ?temp=STATS(i).BoundingBox;
? ?s=temp(3)*temp(4);
? ?if s>b
? ? ? ?b=s;
? ? ? ?k=i;%記錄面積最大的標(biāo)記區(qū)域的索引值
? ?end
end
%rectangle('position',STATS(k).BoundingBox,'edgecolor','r');%繪制最大標(biāo)記區(qū)域的外接矩形
temp=STATS(k).BoundingBox;
Rx=round(temp(1));Ry=round(temp(2));%提取條形碼區(qū)域左上角的坐標(biāo)
Rwidth=round(temp(3));Rlength=round(temp(4));
%初始化
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
check_left = [13,25,19,61,35,49,47,59,55,11;... %左邊數(shù)據(jù)編碼，奇
? ? ? ? ? ? ?39,51,27,33,29,57, 5,17, 9,23]; %左邊數(shù)據(jù)編碼，偶
check_right = [114,102,108,66,92,78,80,68,72,116]; %右邊數(shù)據(jù)編碼
first_num = [31,20,18,17,12,6,3,10,9,5]; ? ?%第一位數(shù)據(jù)編碼
bar = im; ?%讀輸入條形碼圖片
bar_Gray = rgb2gray(bar); ? %將RGB圖片轉(zhuǎn)換灰度圖
[a_hist x] = imhist(bar_Gray); ? %繪制灰度直方圖，返回直方圖數(shù)據(jù)向量a_hist，和相應(yīng)的色彩值向量x
%尋找進(jìn)行二值化處理的閾值，存放在T中
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
hist_max = [];
if a_hist(1)>a_hist(2)
? ?hist_max = [hist_max 1];
end
x = max(x);
for i=2:x
? ?if a_hist(i)>a_hist(i-1) && a_hist(i)>a_hist(i+1)
? ? ? ?hist_max = [hist_max i];
? ?end
end
if a_hist(x)<a_hist(x+1)
? ?hist_max = [hist_max x+1];
end
[m,n] = size(hist_max);
k = 0;
max_1 = 0;
max_2 = 0;
for i=1:n
? ?if k<a_hist(hist_max(i))
? ? ? ?k = a_hist(hist_max(i));
? ? ? ?max_1 = hist_max(i);
? ?end
end
temp = a_hist(max_1);
a_hist(max_1) = 0;
k = 0;
for i=1:n
? ?if k<a_hist(hist_max(i))
? ? ? ?k = a_hist(hist_max(i));
? ? ? ?max_2 = hist_max(i);
? ?end
end
a_hist(max_1) = temp;
if max_1>max_2
? ?k = max_1;
? ?max_1 = max_2;
? ?max_2 = k;
end
T = max_1;
k = a_hist(max_1);
for i=max_1:max_2
? ?if k>a_hist(i)
? ? ? ?k = a_hist(i);
? ? ? ?T = i;
? ?end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[m,n] = size(bar_Gray); %求灰度圖的大小
for i=1:m ? ? ? ?%對圖像進(jìn)行二值化處理
? ?for j=1:n
? ? ? ?if bar_Gray(i,j)>T ? ?%選擇適當(dāng)?shù)拈撝颠M(jìn)行二值化處理
? ? ? ? ? ?bar_10(i,j) = 1;
? ? ? ?else
? ? ? ? ? ?bar_10(i,j) = 0;
? ? ? ?end
? ?end
end
三、運(yùn)行結(jié)果
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