1 简介 在信息时代的今天,随着计算机技术的发展,条形码作为一种简单、方便、廉价、高速的信息保存和传输技术,在世界各地应用广泛,是商品进入国际市场的通行证。本论文的研究基于
1 简介
在信息时代的今天,随着计算机技术的发展,条形码作为一种简单、方便、廉价、高速的信息保存和传输技术,在世界各地应用广泛,是商品进入国际市场的通行证。 本论文的研究基于一种全新的购物理念,即无需排队等待收银员,只需要将选购的商品放入“自助购物系统”,便可自助购物买单。目前超市中广泛使用的条形码扫描器是基于光电识别原理制作的,虽然技术成熟、简单,但需收银员人工定位条形码区域,且对条形码质量要求严格,若条形码部分发生断裂、有污渍等现象,则不能正确识读条形码所携带的信息。更不能识读应用越来越广泛的二维条形码。而采用数字图像处理的方法,可首先改善图像质量,减少或消除由噪声、光照不均、图像模糊等带来的对条形码识读的影响,自动定位出条形码区域后再对其进行译码识别。采用图像处理的方法不仅能识读一维条码,也能识读二维条码。
2 部分代码
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('D:\3 ★Matlab★\Matalb CSDN\【图像处理】\【图像识别】\【条形码识别】\【条形码识别】基于matlab GUI二维条形码识别【含Matlab源码 607期】\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;
axes(handles.axes1);
imshow(im);
% --- Executes during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)
% hObject handle to axes1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: place code in OpeningFcn to populate axes1
3 仿真结果
4 参考文献
[1]乔连芝. 基于图像处理方式定位识别条形码[D]. 华南理工大学, 2011.
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