基于MATALB的植物病虫害识别系统设计与实现(已完结)

（随便看看就好，主要是课设结束了电脑没空间了舍不得删）

本篇博客主要是有下面两个方面的内容：

一、App Designer工具设计交互界面

二、MATLAB深度学习模块中VGG-19模型的使用

一、App Designer工具使用

1.创建新的APP

2.设置背景图和初始化相关组件

3.登录页面组件的相关代码

4.修改密码页面组件的相关代码

5.注册页面组件的相关代码

6.系统主页面控件代码

二、深度学习VGG-19模型

1.VGG-19模型的查找与应用

2.网络模型MATLAB代码段

三、最后一点补充

1.关于标签转换的一些简单代码样例

2.关于图片预处理的一些简单样例

（MATLAB R2021a）

一、App Designer工具使用

1.创建新的App（简单的操作我就不多说了）

登录界面

注册用户界面

密码修改界面

主页面

App Designer工具一般情况下只有给加入的组件添加了回调函数才能编辑代码界面，以下直接贴相关控件的代码。

2.设置背景图和初始化相关组件

% Code that executes after component creation
function startupFcn(app)im =axes('units','normalized','pos',[0 0 1 1]);     i = imread('*.jpg');                                %随便寻找一张图片image(app.UIAxes,i);                                %在坐标区显示背景set(im,'handlevisibility','off','visible','off');   app.*.Value='';                                     %初始化/清空账号框app.*.Value='';                                     %初始化/清空密码框
end% Button down function: UIAxes
function UIAxesButtonDown(app, event)                   %设坐标区回调来固定背景图片%啥也不用写
end

3.登录页面组件的相关代码

% Button pushed function: *
function *ButtonPushed(app, event)                              %“登录”功能global *;                                                   %账户框数据全局变量global *;                                                   %密码框数据全局变量  if isempty(app.*.Value)errordlg('用户名或密码错误','错误提醒','modal');app.*.Value='';app.*.Value='';elseif isempty(app.*.Value)errordlg('用户名或密码错误','错误提醒','modal');app.*.Value='';app.*.Value='';elseif(*=="******" && *=="******")                          %设置登录账号密码delete(gcf);*;                                                      %跳转至主页面elseif ~isempty(app.*..Value)[~,loginname] = xlsread('*.xls','B:B');                 %调用账号Excel表[~,logincode] = xlsread('*.xls','B:B');                 %调用密码Excel表[~,A] = xlsread('*.xls','A:A');                         %读表头    if ~iscell(A)B = maxk(A,1);elsemiu = cell2mat(A);X = str2num(miu);        %#ok<ST2NM>B = maxk(X,1);endfor a = 1:Blname = string(loginname(a));lcode = string(logincode(a));if (*==lname && *==lcode)delete(gcf);*;                                              %跳转至主页面break;endif a == Berrordlg('用户名或密码错误','错误提醒','modal');app.*.Value='';app.*.Value='';endendelseerrordlg('用户名或密码错误','错误提醒','modal');app.*.Value='';app.*.Value='';end
end% Value changed function: *                                     %账号框数据获取
function *ValueChanged(app, event)global *;* = app.*.Value;
end% Value changed function: *                                     %密码框数据获取
function *ValueChanged(app, event)global *;* = app.*.Value;
end% Button pushed function: *
function *ButtonPushed(app, event)                              %注册功能if(app.*.Value=="******" && app.*.Value=="******")          %设置管理员账号密码*;                                                      %跳转至注册界面elseif ~isempty(app.*.Value)errordlg('请输入正确的管理员账户以继续','账户注册指引');app.*.Value='';app.*.Value='';elseif ~isempty(app.*.Value)errordlg('请输入正确的管理员账户以继续','账户注册指引');app.*.Value='';app.*.Value='';elsehelpdlg('请输入管理员账户以继续','账户注册指引');app.*.Value='';app.*.Value='';end
end% Button pushed function: *                                     %修改密码功能
function *ButtonPushed(app, event)*;                                                          %跳转至密码修改界面
end

tips：最近更新 2022.05.13

系统登录界面代码详细

（看个大概，大部分是不需要操作的，需要自己添加的已经在上面演示了）

classdef test < matlab.apps.AppBase% Properties that correspond to app componentsproperties (Access = public)UIFigure  matlab.ui.FigureLabel_3   matlab.ui.control.LabelLabel_2   matlab.ui.control.LabelLabel     matlab.ui.control.Labelalter     matlab.ui.control.Buttonsignup    matlab.ui.control.Buttonmake      matlab.ui.control.Buttoncode      matlab.ui.control.EditFieldname      matlab.ui.control.EditFieldUIAxes    matlab.ui.control.UIAxesend% Callbacks that handle component eventsmethods (Access = private)% Code that executes after component creationfunction startupFcn(app)im =axes('units','normalized','pos',[0 0 1 1]);i = imread('plants.jpg');image(app.UIAxes,i);set(im,'handlevisibility','off','visible','off');app.code.Value='';app.name.Value='';end% Button down function: UIAxesfunction UIAxesButtonDown(app, event)end% Button pushed function: signupfunction signupButtonPushed(app, event)global namevalue;global codevalue;if isempty(app.name.Value)errordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';elseif isempty(app.code.Value)errordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';elseif(namevalue=="wyzn1901" && codevalue=="06193034")delete(gcf);app1;elseif ~isempty(app.name.Value)[~,loginname] = xlsread('lname.xls','B:B');[~,logincode] = xlsread('lcode.xls','B:B');[~,A] = xlsread('lcode.xls','A:A');if ~iscell(A)B = maxk(A,1);elsemiu = cell2mat(A);   X = str2num(miu);                                   %#ok<ST2NM> B = maxk(X,1);endfor a = 1:Blname = string(loginname(a));lcode = string(logincode(a));if (namevalue==lname && codevalue==lcode)delete(gcf);app1;break;endif a == Berrordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';endendelseerrordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';endend% Value changed function: namefunction nameValueChanged(app, event)global namevalue;namevalue = app.name.Value;end% Value changed function: codefunction codeValueChanged(app, event)global codevalue;codevalue = app.code.Value;end% Close request function: UIFigurefunction UIFigureCloseRequest(app, event)selection = questdlg('确定要退出登录系统吗？','关闭提醒','是','否','是');switch selectioncase '是'delete(gcf);case '否'return;endend% Button pushed function: makefunction makeButtonPushed(app, event)if(app.name.Value=="admin123" && app.code.Value=="abc123")regester;elseif ~isempty(app.name.Value)errordlg('请输入正确的管理员账户以继续','账户注册指引');app.code.Value='';app.name.Value='';elseif ~isempty(app.code.Value)errordlg('请输入正确的管理员账户以继续','账户注册指引');app.code.Value='';app.name.Value='';elseuiwait(helpdlg('请输入管理员账户以继续','账户注册指引'));app.code.Value='';app.name.Value='';endend% Button pushed function: alterfunction alterButtonPushed(app, event)altercode;endend% Component initializationmethods (Access = private)% Create UIFigure and componentsfunction createComponents(app)% Create UIFigure and hide until all components are createdapp.UIFigure = uifigure('Visible', 'off');app.UIFigure.AutoResizeChildren = 'off';app.UIFigure.Position = [500 300 590 435];app.UIFigure.Name = '植物病虫害识别系统';app.UIFigure.Resize = 'off';app.UIFigure.CloseRequestFcn = createCallbackFcn(app, @UIFigureCloseRequest, true);app.UIFigure.HandleVisibility = 'on';% Create UIAxesapp.UIAxes = uiaxes(app.UIFigure);app.UIAxes.Toolbar.Visible = 'off';app.UIAxes.XTickLabel = '';app.UIAxes.YTickLabel = '';app.UIAxes.ButtonDownFcn = createCallbackFcn(app, @UIAxesButtonDown, true);app.UIAxes.BusyAction = 'cancel';app.UIAxes.Interruptible = 'off';app.UIAxes.HitTest = 'off';app.UIAxes.PickableParts = 'all';app.UIAxes.Position = [-10 -47 627 498];% Create nameapp.name = uieditfield(app.UIFigure, 'text');app.name.ValueChangedFcn = createCallbackFcn(app, @nameValueChanged, true);app.name.Position = [255 240 170 39];% Create codeapp.code = uieditfield(app.UIFigure, 'text');app.code.ValueChangedFcn = createCallbackFcn(app, @codeValueChanged, true);app.code.Tag = 'code';app.code.Position = [255 153 170 39];% Create makeapp.make = uibutton(app.UIFigure, 'push');app.make.ButtonPushedFcn = createCallbackFcn(app, @makeButtonPushed, true);app.make.Tag = 'make';app.make.FontWeight = 'bold';app.make.Position = [37 39 139 46];app.make.Text = '注册账户';% Create signupapp.signup = uibutton(app.UIFigure, 'push');app.signup.ButtonPushedFcn = createCallbackFcn(app, @signupButtonPushed, true);app.signup.Tag = 'sign';app.signup.FontWeight = 'bold';app.signup.Position = [228 39 139 46];app.signup.Text = '登录';% Create alterapp.alter = uibutton(app.UIFigure, 'push');app.alter.ButtonPushedFcn = createCallbackFcn(app, @alterButtonPushed, true);app.alter.Tag = 'alter';app.alter.FontWeight = 'bold';app.alter.Position = [423 39 139 46];app.alter.Text = '修改密码';% Create Labelapp.Label = uilabel(app.UIFigure);app.Label.FontSize = 18;app.Label.FontWeight = 'bold';app.Label.Position = [176 230 63 59];app.Label.Text = '用户：';% Create Label_2app.Label_2 = uilabel(app.UIFigure);app.Label_2.FontSize = 18;app.Label_2.FontWeight = 'bold';app.Label_2.Position = [176 143 63 59];app.Label_2.Text = '密码：';% Create Label_3app.Label_3 = uilabel(app.UIFigure);app.Label_3.HorizontalAlignment = 'center';app.Label_3.FontName = 'Adobe 仿宋 Std R';app.Label_3.FontSize = 22;app.Label_3.FontWeight = 'bold';app.Label_3.Position = [173 359 249 29];app.Label_3.Text = {'植物病虫害识别系统登录'; ''};% Show the figure after all components are createdapp.UIFigure.Visible = 'on';endend% App creation and deletionmethods (Access = public)% Construct appfunction app = testrunningApp = getRunningApp(app);% Check for running singleton appif isempty(runningApp)% Create UIFigure and componentscreateComponents(app)% Register the app with App DesignerregisterApp(app, app.UIFigure)% Execute the startup functionrunStartupFcn(app, @startupFcn)else% Focus the running singleton appfigure(runningApp.UIFigure)app = runningApp;endif nargout == 0clear appendend% Code that executes before app deletionfunction delete(app)% Delete UIFigure when app is deleteddelete(app.UIFigure)endend
end

4.修改密码页面组件的相关代码

        function startupFcn(app)%空白操作警告fig = app.UIFigure;uialert(fig,'请输入用户账号和原始密码以继续', '修改密码指引','CloseFcn','uiresume(fig)')uiwait(fig);end% Value changed function: signnamefunction signnameValueChanged(app, event)%登录名输入框end% Value changed function: signcodefunction signcodeValueChanged(app, event)%登录密码输入框end% Value changed function: changecodefunction changecodeValueChanged(app, event)global value;%密码修改输入框value = app.changecode.Value;end% Button pushed function: confirmfunction confirmButtonPushed(app, event)global value;%确定密码修改控件响应判断函数，通过匹配原有数据判断修改是否有效if isempty(app.signname.Value)errordlg('用户名或密码错误','错误提醒','modal');app.signcode.Value='';app.signname.Value='';elseif isempty(app.signcode.Value)errordlg('用户名或密码错误','错误提醒','modal');app.signcode.Value='';app.signname.Value='';elseif ~isempty(app.signname.Value)[~,loginname] = xlsread('lname.xls','B:B');[~,logincode] = xlsread('lcode.xls','B:B');[~,A] = xlsread('lcode.xls','A:A');if (value==string(app.signcode.Value))helpdlg('密码输入一致','修改密码指引');elseif ~isempty(value)if ~iscell(A)B = maxk(A,1);str = string(zeros(B,2));elsemiu = cell2mat(A);   X = str2num(miu);                                   %#ok<ST2NM> B = maxk(X,1);str = string(zeros(B,2));endfor a = 1:Blname = string(loginname(a));lcode = string(logincode(a));if (app.signname.Value==lname && app.signcode.Value==lcode)for b = 1:Bstr(b,1) = double(b);if b==astr(b,2) = string(value);elsestr(b,2) = logincode(b);endendwritematrix(str,'lcode.xls',"WriteMode","overwritesheet");msgbox('密码修改成功',"non-modal");close("MATLAB App");break;endif a == Berrordlg('用户名或密码错误','错误提醒','modal');app.signname.Value = '';app.signcode.Value = '';app.changecode.Value = '';endendelseerrordlg('密码必须不为空','错误提醒');endelseerrordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';endendend

修改密码界面代码详细

（看个大概，大部分是不需要操作的，需要自己添加的已经在上面演示了）

classdef altercode < matlab.apps.AppBase% Properties that correspond to app componentsproperties (Access = public)UIFigure    matlab.ui.Figuresigncode    matlab.ui.control.EditFieldLabel_4     matlab.ui.control.LabelLabel_3     matlab.ui.control.Labelchangecode  matlab.ui.control.EditFieldconfirm     matlab.ui.control.ButtonLabel_2     matlab.ui.control.LabelLabel       matlab.ui.control.Labelsignname    matlab.ui.control.EditFieldend% Callbacks that handle component eventsmethods (Access = private)% Code that executes after component creationfunction startupFcn(app)fig = app.UIFigure;uialert(fig,'请输入用户账号和原始密码以继续', '修改密码指引','CloseFcn','uiresume(fig)')uiwait(fig);end% Value changed function: signnamefunction signnameValueChanged(app, event)end% Value changed function: signcodefunction signcodeValueChanged(app, event)end% Value changed function: changecodefunction changecodeValueChanged(app, event)global value;value = app.changecode.Value;end% Button pushed function: confirmfunction confirmButtonPushed(app, event)global value;if isempty(app.signname.Value)errordlg('用户名或密码错误','错误提醒','modal');app.signcode.Value='';app.signname.Value='';elseif isempty(app.signcode.Value)errordlg('用户名或密码错误','错误提醒','modal');app.signcode.Value='';app.signname.Value='';elseif ~isempty(app.signname.Value)[~,loginname] = xlsread('lname.xls','B:B');[~,logincode] = xlsread('lcode.xls','B:B');[~,A] = xlsread('lcode.xls','A:A');if (value==string(app.signcode.Value))helpdlg('密码输入一致','修改密码指引');elseif ~isempty(value)if ~iscell(A)B = maxk(A,1);str = string(zeros(B,2));elsemiu = cell2mat(A);   X = str2num(miu);                                   %#ok<ST2NM> B = maxk(X,1);str = string(zeros(B,2));endfor a = 1:Blname = string(loginname(a));lcode = string(logincode(a));if (app.signname.Value==lname && app.signcode.Value==lcode)for b = 1:Bstr(b,1) = double(b);if b==astr(b,2) = string(value);elsestr(b,2) = logincode(b);endendwritematrix(str,'lcode.xls',"WriteMode","overwritesheet");msgbox('密码修改成功',"non-modal");close("MATLAB App");break;endif a == Berrordlg('用户名或密码错误','错误提醒','modal');app.signname.Value = '';app.signcode.Value = '';app.changecode.Value = '';endendelseerrordlg('密码必须不为空','错误提醒');endelseerrordlg('用户名或密码错误','错误提醒','modal');app.code.Value='';app.name.Value='';endendend% Component initializationmethods (Access = private)% Create UIFigure and componentsfunction createComponents(app)% Create UIFigure and hide until all components are createdapp.UIFigure = uifigure('Visible', 'off');app.UIFigure.Position = [500 300 547 480];app.UIFigure.Name = 'MATLAB App';% Create signnameapp.signname = uieditfield(app.UIFigure, 'text');app.signname.ValueChangedFcn = createCallbackFcn(app, @signnameValueChanged, true);app.signname.Position = [225 300 170 39];% Create Labelapp.Label = uilabel(app.UIFigure);app.Label.FontSize = 18;app.Label.FontWeight = 'bold';app.Label.Position = [139 290 113 59];app.Label.Text = '用户：';% Create Label_2app.Label_2 = uilabel(app.UIFigure);app.Label_2.HorizontalAlignment = 'center';app.Label_2.FontName = 'Adobe 仿宋 Std R';app.Label_2.FontSize = 22;app.Label_2.FontWeight = 'bold';app.Label_2.Position = [138 395 295 29];app.Label_2.Text = {'植物病虫害识别系统密码修改'; ''};% Create confirmapp.confirm = uibutton(app.UIFigure, 'push');app.confirm.ButtonPushedFcn = createCallbackFcn(app, @confirmButtonPushed, true);app.confirm.Position = [225 73 122 48];app.confirm.Text = '确认';% Create changecodeapp.changecode = uieditfield(app.UIFigure, 'text');app.changecode.ValueChangedFcn = createCallbackFcn(app, @changecodeValueChanged, true);app.changecode.Tag = 'code';app.changecode.Position = [225 160 170 39];% Create Label_3app.Label_3 = uilabel(app.UIFigure);app.Label_3.FontSize = 18;app.Label_3.FontWeight = 'bold';app.Label_3.Position = [139 150 111 59];app.Label_3.Text = '修改：';% Create Label_4app.Label_4 = uilabel(app.UIFigure);app.Label_4.FontSize = 18;app.Label_4.FontWeight = 'bold';app.Label_4.Position = [139 220 104 59];app.Label_4.Text = '密码：';% Create signcodeapp.signcode = uieditfield(app.UIFigure, 'text');app.signcode.ValueChangedFcn = createCallbackFcn(app, @signcodeValueChanged, true);app.signcode.Tag = 'code';app.signcode.Position = [225 230 170 39];% Show the figure after all components are createdapp.UIFigure.Visible = 'on';endend% App creation and deletionmethods (Access = public)% Construct appfunction app = altercode% Create UIFigure and componentscreateComponents(app)% Register the app with App DesignerregisterApp(app, app.UIFigure)% Execute the startup functionrunStartupFcn(app, @startupFcn)if nargout == 0clear appendend% Code that executes before app deletionfunction delete(app)% Delete UIFigure when app is deleteddelete(app.UIFigure)endend
end

5.注册页面组件的相关代码

        % Code that executes after component creationfunction startupFcn(app)global value1;global value2;global value3;%初始化value1 = '';value2 = '';value3 = '';end% Value changed function: signnamefunction signnameValueChanged(app, event)global value1;%用户名输入value1 = app.signname.Value;end% Value changed function: signcodefunction signcodeValueChanged(app, event)global value2;%密码输入value2 = app.signcode.Value;end% Value changed function: signcodeagainfunction signcodeagainValueChanged(app, event)global value3;%确认密码输入value3 = app.signcodeagain.Value;end% Button pushed function: confirmfunction confirmButtonPushed(app, event)global value1;global value2;global value3;%检查新用户账号密码注册是否符合规范[~,~] = xlsread('lname.xls');[~,~] = xlsread('lcode.xls');[~,A] = xlsread('lcode.xls','A:A');if ~iscell(A)B = maxk(A,1);elsemiu = cell2mat(A);X = str2num(miu);                                   %#ok<ST2NM>B = maxk(X,1);endx = B+1;if ~isempty(value1)if ~isempty(value2)if (value2==value3)v1 = {x,string(value1)};v2 = {string(x),string(value2)};writecell(v1,'lname.xls',"WriteMode","append");writecell(v2,'lcode.xls','WriteMode','append');app.signname.Value = '';app.signcode.Value = '';app.signcodeagain.Value = '';uiwait(msgbox('用户创建成功',"non-modal"));delete(gcf);elseerrordlg('密码输入不一致','账户注册指引');endelseerrordlg('密码必须不为空','账户注册指引');endelseif isempty(value1)errordlg('用户名必须不为空','账户注册指引');elseif isempty(value2)errordlg('密码必须不为空','账户注册指引');endend

注册界面代码详细

（看个大概，大部分是不需要操作的，需要自己添加的已经在上面演示了）

classdef regester < matlab.apps.AppBase% Properties that correspond to app componentsproperties (Access = public)UIFigure       matlab.ui.Figuresigncode       matlab.ui.control.EditFieldLabel_7        matlab.ui.control.LabelLabel_6        matlab.ui.control.Labelsigncodeagain  matlab.ui.control.EditFieldconfirm        matlab.ui.control.ButtonLabel_5        matlab.ui.control.LabelLabel          matlab.ui.control.Labelsignname       matlab.ui.control.EditFieldend% Callbacks that handle component eventsmethods (Access = private)% Code that executes after component creationfunction startupFcn(app)global value1;global value2;global value3;value1 = '';value2 = '';value3 = '';end% Value changed function: signnamefunction signnameValueChanged(app, event)global value1;value1 = app.signname.Value;end% Value changed function: signcodefunction signcodeValueChanged(app, event)global value2;value2 = app.signcode.Value;end% Value changed function: signcodeagainfunction signcodeagainValueChanged(app, event)global value3;value3 = app.signcodeagain.Value;end% Button pushed function: confirmfunction confirmButtonPushed(app, event)global value1;global value2;global value3;[~,~] = xlsread('lname.xls');[~,~] = xlsread('lcode.xls');[~,A] = xlsread('lcode.xls','A:A');if ~iscell(A)B = maxk(A,1);elsemiu = cell2mat(A);X = str2num(miu);                                   %#ok<ST2NM>B = maxk(X,1);endx = B+1;if ~isempty(value1)if ~isempty(value2)if (value2==value3)v1 = {x,string(value1)};v2 = {string(x),string(value2)};writecell(v1,'lname.xls',"WriteMode","append");writecell(v2,'lcode.xls','WriteMode','append');app.signname.Value = '';app.signcode.Value = '';app.signcodeagain.Value = '';uiwait(msgbox('用户创建成功',"non-modal"));delete(gcf);elseerrordlg('密码输入不一致','账户注册指引');endelseerrordlg('密码必须不为空','账户注册指引');endelseif isempty(value1)errordlg('用户名必须不为空','账户注册指引');elseif isempty(value2)errordlg('密码必须不为空','账户注册指引');endendend% Component initializationmethods (Access = private)% Create UIFigure and componentsfunction createComponents(app)% Create UIFigure and hide until all components are createdapp.UIFigure = uifigure('Visible', 'off');app.UIFigure.Position = [100 100 570 480];app.UIFigure.Name = 'MATLAB App';% Create signnameapp.signname = uieditfield(app.UIFigure, 'text');app.signname.ValueChangedFcn = createCallbackFcn(app, @signnameValueChanged, true);app.signname.Position = [225 300 170 39];% Create Labelapp.Label = uilabel(app.UIFigure);app.Label.FontSize = 18;app.Label.FontWeight = 'bold';app.Label.Position = [118 290 113 59];app.Label.Text = '注册账户：';% Create Label_5app.Label_5 = uilabel(app.UIFigure);app.Label_5.HorizontalAlignment = 'center';app.Label_5.FontName = 'Adobe 仿宋 Std R';app.Label_5.FontSize = 22;app.Label_5.FontWeight = 'bold';app.Label_5.Position = [138 395 295 29];app.Label_5.Text = {'植物病虫害识别系统账号注册'; ''};% Create confirmapp.confirm = uibutton(app.UIFigure, 'push');app.confirm.ButtonPushedFcn = createCallbackFcn(app, @confirmButtonPushed, true);app.confirm.Position = [225 73 122 48];app.confirm.Text = '确认';% Create signcodeagainapp.signcodeagain = uieditfield(app.UIFigure, 'text');app.signcodeagain.ValueChangedFcn = createCallbackFcn(app, @signcodeagainValueChanged, true);app.signcodeagain.Tag = 'code';app.signcodeagain.Position = [225 160 170 39];% Create Label_6app.Label_6 = uilabel(app.UIFigure);app.Label_6.FontSize = 18;app.Label_6.FontWeight = 'bold';app.Label_6.Position = [118 150 111 59];app.Label_6.Text = '确认密码：';% Create Label_7app.Label_7 = uilabel(app.UIFigure);app.Label_7.FontSize = 18;app.Label_7.FontWeight = 'bold';app.Label_7.Position = [118 220 104 59];app.Label_7.Text = '输入密码：';% Create signcodeapp.signcode = uieditfield(app.UIFigure, 'text');app.signcode.ValueChangedFcn = createCallbackFcn(app, @signcodeValueChanged, true);app.signcode.Tag = 'code';app.signcode.Position = [225 230 170 39];% Show the figure after all components are createdapp.UIFigure.Visible = 'on';endend% App creation and deletionmethods (Access = public)% Construct appfunction app = regester% Create UIFigure and componentscreateComponents(app)% Register the app with App DesignerregisterApp(app, app.UIFigure)% Execute the startup functionrunStartupFcn(app, @startupFcn)if nargout == 0clear appendend% Code that executes before app deletionfunction delete(app)% Delete UIFigure when app is deleteddelete(app.UIFigure)endend
end

以上是关于登录、注册、修改密码的控件与界面的代码部分

接下来是系统主界面的代码

6.系统主页面控件代码

        % Code that executes after component creationfunction startupFcn(app)global name;global val;global num;%读标签num = 0;val = 0;[~,name] = xlsread('labels.xls');end% Button pushed function: imagereadfunction imagereadPushed(app, event)global I;global val;global filenames;%读入图片以显示在坐标系中filefold ='*';                                %图片读取路径[file,path] = uigetfile(filefold);image = fullfile(path,file);I = imresize(imread(image),[224,224]);imshow(I,'parent',app.imageshow);val = 1;imagenames = split(path,"\");filenames = string(imagenames(5,1));app.Field.Value = '';app.OriginalField.Value = '';end% Value changed function: OriginalFieldfunction OriginalFieldValueChanged(app, event)%“图片类别”与空白显示框end% Button pushed function: analysis                function analysisButtonPushed(app, event)         %“分析”函数global I;global name;global val;global num;if val == 1app.Field.Value = '';load("CNNtestmini.mat");                  %#ok<LOAD> sz = net.Layers(1).InputSize;I = I(1:sz(1),1:sz(2),1:sz(3));label = classify(net,I);                  %#ok<NASGU> labelchange();tag = name(l,1);app.Field.Value = string(tag);num = 1;elseerrordlg('请输入待识别图片','错误提醒','modal');endend% Button pushed function: exitfunction exitButtonPushed(app, event)delete(gcf);                                  %“退出”函数end% Button down function: imageshowfunction imageshowButtonDown(app, event)%图片展示坐标轴函数end% Value changed function: Fieldfunction FieldValueChanged(app, event)%“分析结果”与空白显示框end% Button pushed function: verifyfunction verifyPushed(app, event)                 %“分析结果”函数global filenames;global num;if num == 1app.OriginalField.Value = filenames;elseerrordlg('操作错误，请先获得分析结果','错误提醒','modal');endend

系统主界面详细代码

（看个大概，大部分是不需要操作的，需要自己添加的已经在上面演示了）

classdef app1 < matlab.apps.AppBase% Properties that correspond to app componentsproperties (Access = public)UIFigure       matlab.ui.Figureverify         matlab.ui.control.ButtonLabel_2        matlab.ui.control.LabelOriginalField  matlab.ui.control.EditFieldField          matlab.ui.control.EditFieldLabel          matlab.ui.control.Labelexit           matlab.ui.control.Buttonanalysis       matlab.ui.control.Buttonimageread      matlab.ui.control.Buttonimageshow      matlab.ui.control.UIAxesend% Callbacks that handle component eventsmethods (Access = private)% Code that executes after component creationfunction startupFcn(app)global name;global val;global num;num = 0;val = 0;[~,name] = xlsread('labels.xls');end% Callback functionfunction EditFieldValueChanged(app, event)end% Button pushed function: imagereadfunction imagereadPushed(app, event)global I;global val;global filenames;filefold ='D:\机器视觉课设\课设大数据\验证\';[file,path] = uigetfile(filefold);image = fullfile(path,file);I = imresize(imread(image),[224,224]);imshow(I,'parent',app.imageshow);val = 1;imagenames = split(path,"\");filenames = string(imagenames(5,1));app.Field.Value = '';app.OriginalField.Value = '';end% Value changed function: OriginalFieldfunction OriginalFieldValueChanged(app, event)end% Button pushed function: analysisfunction analysisButtonPushed(app, event)global I;global name;global val;global num;if val == 1app.Field.Value = '';load("CNNtestmini.mat");                                    %#ok<LOAD> sz = net.Layers(1).InputSize;I = I(1:sz(1),1:sz(2),1:sz(3));label = classify(net,I);                                    %#ok<NASGU> labelchange();tag = name(l,1);app.Field.Value = string(tag);num = 1;elseerrordlg('请输入待识别图片','错误提醒','modal');endend% Button pushed function: exitfunction exitButtonPushed(app, event)delete(gcf);end% Button down function: imageshowfunction imageshowButtonDown(app, event)end% Value changed function: Fieldfunction FieldValueChanged(app, event)end% Button down function: UIFigurefunction UIFigureButtonDown(app, event)end% Button pushed function: verifyfunction verifyPushed(app, event)global filenames;global num;if num == 1app.OriginalField.Value = filenames;elseerrordlg('操作错误，请先获得分析结果','错误提醒','modal');endendend% Component initializationmethods (Access = private)% Create UIFigure and componentsfunction createComponents(app)% Create UIFigure and hide until all components are createdapp.UIFigure = uifigure('Visible', 'off');app.UIFigure.IntegerHandle = 'on';app.UIFigure.AutoResizeChildren = 'off';app.UIFigure.Colormap = [];app.UIFigure.Position = [500 300 640 480];app.UIFigure.Name = '植物病虫害分析系统';app.UIFigure.Resize = 'off';app.UIFigure.ButtonDownFcn = createCallbackFcn(app, @UIFigureButtonDown, true);app.UIFigure.HandleVisibility = 'callback';app.UIFigure.WindowStyle = 'modal';% Create imageshowapp.imageshow = uiaxes(app.UIFigure);title(app.imageshow, '图片展示')app.imageshow.Toolbar.Visible = 'off';app.imageshow.Colormap = [];app.imageshow.Clipping = 'off';app.imageshow.ButtonDownFcn = createCallbackFcn(app, @imageshowButtonDown, true);app.imageshow.BusyAction = 'cancel';app.imageshow.Interruptible = 'off';app.imageshow.PickableParts = 'all';app.imageshow.Position = [202 147 388 309];% Create imagereadapp.imageread = uibutton(app.UIFigure, 'push');app.imageread.ButtonPushedFcn = createCallbackFcn(app, @imagereadPushed, true);app.imageread.Position = [64 370 106 34];app.imageread.Text = '图片读取';% Create analysisapp.analysis = uibutton(app.UIFigure, 'push');app.analysis.ButtonPushedFcn = createCallbackFcn(app, @analysisButtonPushed, true);app.analysis.Position = [64 275 106 34];app.analysis.Text = '分析';% Create exitapp.exit = uibutton(app.UIFigure, 'push');app.exit.ButtonPushedFcn = createCallbackFcn(app, @exitButtonPushed, true);app.exit.Position = [64 85 106 34];app.exit.Text = {'退出'; ''};% Create Labelapp.Label = uilabel(app.UIFigure);app.Label.HorizontalAlignment = 'right';app.Label.FontSize = 18;app.Label.Position = [224 62 77 24];app.Label.Text = '分析结果';% Create Fieldapp.Field = uieditfield(app.UIFigure, 'text');app.Field.ValueChangedFcn = createCallbackFcn(app, @FieldValueChanged, true);app.Field.Editable = 'off';app.Field.HorizontalAlignment = 'center';app.Field.FontSize = 18;app.Field.Position = [319 56 211 37];% Create OriginalFieldapp.OriginalField = uieditfield(app.UIFigure, 'text');app.OriginalField.ValueChangedFcn = createCallbackFcn(app, @OriginalFieldValueChanged, true);app.OriginalField.Editable = 'off';app.OriginalField.HorizontalAlignment = 'center';app.OriginalField.FontSize = 18;app.OriginalField.Position = [319 111 211 37];% Create Label_2app.Label_2 = uilabel(app.UIFigure);app.Label_2.HorizontalAlignment = 'right';app.Label_2.FontSize = 18;app.Label_2.Position = [225 117 77 24];app.Label_2.Text = '图片类别';% Create verifyapp.verify = uibutton(app.UIFigure, 'push');app.verify.ButtonPushedFcn = createCallbackFcn(app, @verifyPushed, true);app.verify.Position = [64 180 106 34];app.verify.Text = '分类验证';% Show the figure after all components are createdapp.UIFigure.Visible = 'on';endend% App creation and deletionmethods (Access = public)% Construct appfunction app = app1% Create UIFigure and componentscreateComponents(app)% Register the app with App DesignerregisterApp(app, app.UIFigure)% Execute the startup functionrunStartupFcn(app, @startupFcn)if nargout == 0clear appendend% Code that executes before app deletionfunction delete(app)% Delete UIFigure when app is deleteddelete(app.UIFigure)endend
end

二、深度学习VGG-19模型

1.VGG-19模型的查找与应用

首先按照顺序进行操作

等待最终的训练结果曲线，大概结果如下：

至此，模型训练完毕可以直接使用了。

2.网络模型MATLAB代码段

（不需要刻意准备，一般模型训练结果会直接导出）

clear;clc;
%%数据集载入
datapath = "filepath";
imds = imageDatastore(datapath,'IncludeSubfolders',true,'LabelSource','foldernames');
%%数据集拆分为训练集imTrain与验证集imTest
[imTrain,imTest] = splitEachLabel(imds,0.7,'randomize');
%%导入VGG-19模型框架表
params = load("D:\MatlabR2021a\bin\params_VGG19.mat");
%%VGG-19模型图层
layers = [imageInputLayer([224 224 3],"Name","input","Mean",params.input.Mean)convolution2dLayer([3 3],64,"Name","conv1_1","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv1_1.Bias,"Weights",params.conv1_1.Weights)reluLayer("Name","relu1_1")convolution2dLayer([3 3],64,"Name","conv1_2","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv1_2.Bias,"Weights",params.conv1_2.Weights)reluLayer("Name","relu1_2")maxPooling2dLayer([2 2],"Name","pool1","Stride",[2 2])convolution2dLayer([3 3],128,"Name","conv2_1","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv2_1.Bias,"Weights",params.conv2_1.Weights)reluLayer("Name","relu2_1")convolution2dLayer([3 3],128,"Name","conv2_2","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv2_2.Bias,"Weights",params.conv2_2.Weights)reluLayer("Name","relu2_2")maxPooling2dLayer([2 2],"Name","pool2","Stride",[2 2])convolution2dLayer([3 3],256,"Name","conv3_1","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv3_1.Bias,"Weights",params.conv3_1.Weights)reluLayer("Name","relu3_1")convolution2dLayer([3 3],256,"Name","conv3_2","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv3_2.Bias,"Weights",params.conv3_2.Weights)reluLayer("Name","relu3_2")convolution2dLayer([3 3],256,"Name","conv3_3","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv3_3.Bias,"Weights",params.conv3_3.Weights)reluLayer("Name","relu3_3")convolution2dLayer([3 3],256,"Name","conv3_4","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv3_4.Bias,"Weights",params.conv3_4.Weights)reluLayer("Name","relu3_4")maxPooling2dLayer([2 2],"Name","pool3","Stride",[2 2])convolution2dLayer([3 3],512,"Name","conv4_1","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv4_1.Bias,"Weights",params.conv4_1.Weights)reluLayer("Name","relu4_1")convolution2dLayer([3 3],512,"Name","conv4_2","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv4_2.Bias,"Weights",params.conv4_2.Weights)reluLayer("Name","relu4_2")convolution2dLayer([3 3],512,"Name","conv4_3","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv4_3.Bias,"Weights",params.conv4_3.Weights)reluLayer("Name","relu4_3")convolution2dLayer([3 3],512,"Name","conv4_4","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv4_4.Bias,"Weights",params.conv4_4.Weights)reluLayer("Name","relu4_4")maxPooling2dLayer([2 2],"Name","pool4","Stride",[2 2])convolution2dLayer([3 3],512,"Name","conv5_1","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv5_1.Bias,"Weights",params.conv5_1.Weights)reluLayer("Name","relu5_1")convolution2dLayer([3 3],512,"Name","conv5_2","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv5_2.Bias,"Weights",params.conv5_2.Weights)reluLayer("Name","relu5_2")convolution2dLayer([3 3],512,"Name","conv5_3","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv5_3.Bias,"Weights",params.conv5_3.Weights)reluLayer("Name","relu5_3")convolution2dLayer([3 3],512,"Name","conv5_4","Padding",[1 1 1 1],"WeightL2Factor",0,"Bias",params.conv5_4.Bias,"Weights",params.conv5_4.Weights)reluLayer("Name","relu5_4")maxPooling2dLayer([2 2],"Name","pool5","Stride",[2 2])fullyConnectedLayer(4096,"Name","fc6","WeightL2Factor",0,"Bias",params.fc6.Bias,"Weights",params.fc6.Weights)reluLayer("Name","relu6")dropoutLayer(0.5,"Name","drop6")fullyConnectedLayer(4096,"Name","fc7","WeightL2Factor",0,"Bias",params.fc7.Bias,"Weights",params.fc7.Weights)reluLayer("Name","relu7")dropoutLayer(0.5,"Name","drop7")fullyConnectedLayer(15,"Name","fc","WeightL2Factor",0)softmaxLayer("Name","softmax")classificationLayer("Name","classoutput")];
%%超参数设置
options = trainingOptions('sgdm',...
'MiniBatchSize',11,...
'MaxEpochs',30,...
'InitialLearnRate',0.001,...
'Shuffle','every-epoch',...
'ValidationData',imTest,...
'ValidationFrequency',30,...
'ExecutionEnvironment','multi-gpu',...
'Verbose',false,...
'Plots','training-progress');
%%开始训练
net = trainNetwork(imTrain,layers,options);
%%模型结果保存
save('CNNtestmini','net');
%%精度验证
ypred = classify(net,imTest);
ytest = imTest.Labels;
Accuracy = sum(ypred==ytest)/numel(ytest);

三、最后一点补充

1.关于标签转换的一些简单代码样例

if label == 'Apple_Normal'              %#ok<BDSCA>l = 1;
elseif label == 'Apple_RD'              %#ok<BDSCA>l = 2;
elseif label == 'Apple_GSD'             %#ok<BDSCA>l = 3;
elseif label == 'Apple_CR'              %#ok<BDSCA>l = 4;
elseif label == 'Apple_ALS'             %#ok<BDSCA>l = 5;
elseif label == 'Cabbage_Normal'        %#ok<BDSCA>l = 6;
elseif label == 'Cabbage_SR'            %#ok<BDSCA>l = 7;
elseif label == 'Cabbage_BBD'           %#ok<BDSCA>l = 8;
elseif label == 'Grape_Normal'          %#ok<BDSCA>l = 9;
elseif label == 'Grape_BBD'             %#ok<BDSCA>l = 10;
elseif label == 'Grape_DM'              %#ok<BDSCA>l = 11;
elseif label == 'Rice_Normal'           %#ok<BDSCA>l = 12;
elseif label == 'Rice_RB'               %#ok<BDSCA>l = 13;
elseif label == 'Rice_BBD'              %#ok<BDSCA>l = 14;
elseif label == 'Rice_BLB'              %#ok<BDSCA>l = 15;
end

标签转化目的是为了对应最终展示结果

2.关于图片预处理的一些简单样例（裁剪图片尺寸大小）

%%filepath为需要修改的图片所在的父目录
imagePath = 'filepath';
%%读取目录文件下的所有图片文件
imageFiles = dir(imagePath);
%%获取图片的数量
numFiles = length(imageFiles);for i=3:numFiles                                                         j = i-2;        imageFile = strcat(imagePath,imageFiles(i).name);%%读入图片A = imread(imageFile);%%修改图片尺寸B = imresize(A,[224 224]); %%保存图片 imwrite(B,imageFile);
end

至此，关于“植物病虫害识别系统”课设的所有代码相关内容已完成上传

由于本博主第一次发表此类内容，如果有不足请大家多多指教.

以上

资源下载：《植物病虫害识别系统课程设计》-Matlab文档类资源-CSDN下载