1 简介

文章应用机器视觉技术,实现对PCB电路板芯片的位置检测。

2 部分代码

function varargout = GUI2(varargin)% GUI2 MATLAB code for GUI2.fig%      GUI2, by itself, creates a new GUI2 or raises the existing%      singleton*.%%      H = GUI2 returns the handle to a new GUI2 or the handle to%      the existing singleton*.%%      GUI2('CALLBACK',hObject,eventData,handles,...) calls the local%      function named CALLBACK in GUI2.M with the given input arguments.%%      GUI2('Property','Value',...) creates a new GUI2 or raises the%      existing singleton*.  Starting from the left, property value pairs are%      applied to the GUI before GUI2_OpeningFcn gets called.  An%      unrecognized property name or invalid value makes property application%      stop.  All inputs are passed to GUI2_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 GUI2% Last Modified by GUIDE v2.5 25-Mar-2022 21:12:44% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @GUI2_OpeningFcn, ...                   'gui_OutputFcn',  @GUI2_OutputFcn, ...                   'gui_LayoutFcn',  [] , ...                   'gui_Callback',   []);if nargin && ischar(varargin{1})    gui_State.gui_Callback = str2func(varargin{1});endif 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 GUI2 is made visible.function GUI2_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 GUI2 (see VARARGIN)% Choose default command line output for GUI2handles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes GUI2 wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.function varargout = GUI2_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 structurevarargout{1} = handles.output;% --- 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 I I_O[filename,pathname]=uigetfile('*.jpg;*.bmp;*.gif;*.png', 'Pick an image-file');if isequal(filename,0)    disp('User selected Cancel');    returnelse    disp(['User selected ',fullfile(pathname, filename)]);    I = imread([pathname filename]);endI_O=I;axes(handles.axes1)imshow(I);title('原图');%

4 参考文献

[1]夏链等. "基于机器视觉的BGA芯片缺陷检测及其MATLAB实现." 合肥工业大学学报：自然科学版 32.11(2009):4.

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