一、项目简介

本系统基于MATLAB平台，结合卷积神经网络（CNN）与GUI界面，实现对猫、狗、猪等三类动物的图像识别。系统包含训练和识别两大模块：训练模块使用自定义CNN（含卷积、池化、全连接层，输出3类）对图像提取特征，按8:2划分训练集与测试集；GUI模块支持图像选取、模型载入、单张实时识别（结果以弹窗显示）及测试集总体准确率评估，交互直观。

二、部分源码

function pushbutton1_Callback(hObject, eventdata, handles) % 选取图像

% 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)

[fn,pn,~]=uigetfile('*.bmp','请选择所要识别的图像');

I = imread([pn fn]);

axes(handles.axes1);

imshow(I,[]);

title('所选图像');

handles.I = I;

guidata(gcbo,handles);

% --- Executes on button press in pushbutton2.

function pushbutton2_Callback(hObject, eventdata, handles) % 进行识别

% hObject handle to pushbutton2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

load("CNNnet.mat");

y_pred = classify(CNNnet,handles.I);

% disp(y_pred);

%set(handles.edit1,'string',y_pred);

set(handles.edit1,'String',y_pred);

result=strcat('动物种类：',string(y_pred),'');

msgbox(result,'识别结果','warn')

function edit1_Callback(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text

% str2double(get(hObject,'String')) returns contents of edit1 as a double

% --- Executes during object creation, after setting all properties.

function edit1_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

% --- Executes on button press in pushbutton3.

function pushbutton3_Callback(hObject, eventdata, handles) % 显示整个测试集的结果

% hObject handle to pushbutton3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

%% 加载数据

allImages = imageDatastore('dbx', ...

'IncludeSubfolders' ,true, ...

'LabelSource' , 'foldernames' );% 图像加载为图像数据存储

% imageDatastore函数会根据文件夹名称自动标记图像

% 划分训练集(80%)和测试集(20%)

[imgsTrain,imgsTest] = splitEachLabel(allImages,0.8,'randomized');

load("CNNnet.mat");

y_pred = classify(CNNnet,imgsTest); % 使用训练好的网络测试

accuracy = mean(y_pred == imgsTest.Labels);% 计算准确率

set(handles.text2,'string',['总体准确率: ',num2str(100*accuracy),'%'],'FontSize',12);

三、运行结果

四、总结

测试集总体准确率达88.89%，验证了CNN在动物分类任务中的有效性。系统操作简便，具备实用与教学价值。但网络结构较浅，类别数仅3类，泛化能力有限；支持BMP格式输入。后续可通过增加数据量、引入迁移学习或数据增强提升鲁棒性，并扩展支持更多动物类别和图像格式。

五、代码获取

接matlab程序定制和论文设计，方向如下：

图像处理｜语音识别｜图像识别｜目标检测｜深度学习｜神经网络｜强化学习｜机器学习｜通信系统｜信号处理｜时频分析｜小波降噪｜路径规划｜优化算法｜智能算法｜数据处理｜数学建模｜文献复现｜算法复现｜模型复现等

程序包运行成功，零基础的可以远程帮你运行，赠送安装包。

作为初学者，遇见不会的问题是非常正常的事情，具体代码仿真可通过主页 私信博主。