MATLAB GUI图形的数字化处理代码.doc

2013-1014第一学期MATLAB课程期末考核作业20120511048 王晨晨基于MATLAB GUI的图片的数字化处理界面设计1、 设计目标：利用GUI设计工具设计一个界面，该界面包括两个用于显示图片的坐标轴对象。用户通过单击相应的按钮，可以对图片进行灰度处理、均值化处理、直方图显示、亮度调节、颜色调节、旋转角度、背景颜色调节的功能。2、 打开GUI设计设计窗口，添加相关控件对象，并设置相应的属性。3、 编写代码，实现控件的功能。1、加载图片按钮的代码：function pushbutton5_Callback(hObject, eventdata, handles)% hObject handle to pushbutton5 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)filename,pathname =uigetfile(*.jpg;*.bmp;*.tif,加载图片);file=pathname,filename;global S; %设置一个全局变量S，S=file;x=imread(file); %选中图片axes(handles.axes1);imshow(x); %用axes1 显示原图axes(handles.axes2);imshow(x); %用axes2 显示处理后对比图handles.img=x; %用handles（句柄）存储当前图像guidata(hObject,handles); %保存handles 的内容 % - Executes on button press in pushbutton6.2、灰度处理按钮的代码;function pushbutton6_Callback(hObject, eventdata, handles)% hObject handle to pushbutton6 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) global T %设置全局变量axes(handles.axes2);T=getimage; %获取当前图像（上一次操作后的图片）x=rgb2gray(handles.img); %二值化imshow(x); %显示二值化后图片handles.img=x; %用handles（句柄）存储当前图像guidata(hObject,handles); %保存handles（句柄）的内容3、反化按钮的代码：function pushbutton7_Callback(hObject, eventdata, handles)% hObject handle to pushbutton7 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global T %设置全局变量axes(handles.axes2); %启用axes2T=getimage; %获取上次操作图片f=imcomplement(handles.img); %对图像数据进行取反运算（实现底片效果）。imshow(f); %显示之handles.img=f; %储存在句柄中guidata(hObject,handles); %保存句柄内容4、亮度调节的代码：function pushbutton8_Callback(hObject, eventdata, handles)% hObject handle to pushbutton8 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global T %全局变量axes(handles.axes2); %启用axes2T=getimage; %获取上一步图像prompt=调节倍数; %调节倍数对话框defans=1; %默认值设为1p=inputdlg(prompt,input,1,defans); %输入框由用户输入数值p1=str2double(p1); %把字符串转换数值y=imadjust(handles.img, , ,p1); %调节灰度图像的亮度或彩色图像imshow(y); %显示之handles.img=y;guidata(hObject,handles);5、直方图的代码：function pushbutton9_Callback(hObject, eventdata, % handles structure with handles and user data (see GUIDATA)axes(handles.axes2);x=imhist(handles.img); %显示灰度直方图x1=x(1:10:256);horz=1:10:256; %X轴范围设置bar(horz,x1); %调用bar函数显示直方图axis(0 255 0 15000); %设置Y轴示值范围set(handles.axes2,xtick,0:10:255); %X轴范围及分度set(handles.axes2,ytick,0:2000:15000); %Y值范围及分度6、均值按钮的代码：function pushbutton10_Callback(hObject, eventdata, handles)% hObject handle to pushbutton10 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)T=getimage; %获取上一步图像h=histeq(handles.img,64); %均衡化后的直方图只有64 个灰度值imshow(h); %显示之handles.img=h; %储存在句柄中guidata(hObject,handles); %保存句柄内容 7、撤销上步按钮的代码： function pushbutton2_Callback(hObject, eventdata, handles)% 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) global T %全局变量axes(handles.axes2); %启用axes2imshow(T); %显示上一步图像（即撤销当前步骤的操 handles.img=T;guidata(hObject,handles); 8、恢复原图按钮的代码：function pushbutton3_Callback(hObject, eventdata, handles)% 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)global S %原图的全局变量axes(handles.axes2);y=imread(S); %选择原图imshow(y); %显示原图handles.img=y;guidata(hObject,handles);9、旋转图片按钮代码：function togglebutton2_Callback(hObject, eventdata, handles)% hObject handle to togglebutton2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global S %原图的全局变量axes(handles.axes2);a=imread(S); %选择原图a1=imrotate(a,-45,bilinear);%旋转函数，45为旋转角度，bilinear为旋转后不是整数点的像素值 通过双线性插值得到。当旋转角度为正时，逆时针旋转；当旋转角度为负时，顺时针旋转imshow(a1);10:改变背景颜色代码：function radiobutton6_Callback(hObject, eventdata, handles)% hObject handle to radiobutton6 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) set(gcf, color, blue);11、适当调整图片颜色的代码：function pushbutton14_Callback(hObject, eventdata, handles)% hObject handle to pushbutton14 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global S %原图的全局变量axes(handles.axes2);a=imread(S); %选择原图b = imadjust(a,.0 .2 0; .5 .6 .5,);Heigh