数字图像处理实验四、基于GUIDE的图像处理软件开发

% --- Executes on button press in Roberts.

functionRoberts_Callback(hObject, eventdata, handles) R = handles.I;

BW = edge(R,'roberts',0.1); %??í????ó?T2?′?ìY?è axes(handles.axes3);

imshow(BW,[]);title('roberts??×ó'); % hObject handle to Roberts (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in Laplacian.

functionLaplacian_Callback(hObject, eventdata, handles) L = handles.I;

H = [0 -1 0;-1 4 -1;0 -1 0]; J = imfilter(L,H); handles.J = J; axes(handles.axes4);

imshow(J,[]);title('à-??à-?1??×ó'); % hObject handle to Laplacian (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in imhist.

functionimhist_Callback(hObject, eventdata, handles) I = handles.I; axes(handles.axes2);

imhist(I);title('?-ê?í????±·?í?'); % hObject handle to imhist (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in linear.

functionlinear_Callback(hObject, eventdata, handles) I = handles.I;

J = imadjust(I,[0.3 0.7],[]); %ê1ó?imadjustoˉêy??DD?ò?èμ???D?±??? axes(handles.axes3);imshow(J);title('??D?±???');

axes(handles.axes4);imhist(J);title('??D?±????±·?í?'); %??ê?±???oóμ?í????±·?í?

% hObject handle to linear (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in histeq.

functionhisteq_Callback(hObject, eventdata, handles) I = handles.I;

J = histeq(I); %íê3é?±·?í??ùoa?ˉ axes(handles.axes5);

imshow(J);title('?ùoa?ˉoóí???'); axes(handles.axes6);

imhist(J);title('?ùoa?ˉμ??±·?í?'); % hObject handle to histeq (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

% --- Executes on button press in Clean.

functionClean_Callback(hObject, eventdata, handles) I = ones(256,256);

axes(handles.axes1);imshow(I); axes(handles.axes2);imshow(I); axes(handles.axes3);imshow(I); axes(handles.axes4);imshow(I); axes(handles.axes5);imshow(I); axes(handles.axes6);imshow(I);

% hObject handle to Clean (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)

function edit7_Callback(hObject, eventdata, handles) % hObject handle to edit7 (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 edit7 as text % str2double(get(hObject,'String')) returns contents of edit7 as a double

% --- Executes during object creation, after setting all properties. function edit7_CreateFcn(hObject, eventdata, handles) % hObject handle to edit7 (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.

ifispc&&isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end

七、 实验结果

八、 思考题

（1） 结合教材第6章介绍的图像增强编程方法，说明采用GUIDE环境开发在此方面具有

的特点。

图形用于界面（Graphical User Interfaces，GUI）是提供人机交互的工具和方法。GUI是包含图形对象（如窗口、图标、菜单和文本）的用户界面。以某种方式选择或激活这些对象时，通常会引起动作或者发生变化。一个设计优秀的GUI能够非常直观的让用户知道如何操作MATLAB界面，并且了解设计者的开发意图。MATLAB的GUI为开发者提供了一个不脱离MATLAB的开发环境，有助于MATLAB程序的GUI集成。这样可以使开发者不必理会一大堆烦杂的代码，简化程序，但是同样可以实现向决策者提供图文并茂的界面，甚至达到多媒体的效果。可以说MATLAB提供了一个简便的开发环境，可以让开发者快速上手，提高了开发者的工作效率。

所谓的GUIDE就是图形用户界面开发环境（Graphical User Interface Development Environment），它向用户提供了一系列的创建用户图形界面的工具。这些工具大大

简化了GUI设计和生成的过程。GUIDE可以完成的任务有如下两点：1）输出GUI。2）GUI编程。GUIDE实际上是一套MATLAB工具集，它主要由七部分组成：版面设计器、属性编辑器、菜单编辑器、调整工具、对象浏览器、Tab顺序编辑器、M文件编辑器。