1、南京信息工程大學 題目： 數字圖像處理課程設計 姓 名： 孟田翠 學 號： 20111325027 班 級： 1班 指導老師： 孫 寶 玉 專 業： 信息工程（系統控制方向） 2013年 12月19日設計目標實現簡單的數字圖像處理功能直方圖均勻化；顯示原圖；比例放大5倍；非比例放大到800*800像素；線性變換；檢測圖像中的點、線和邊緣；分別采用 Sobel，Prewitt，Robert算子進行邊緣銳化。設計內容及要求：（1）、獨立設計方案，實現對圖像的4種及以上處理（比如：底片化效果、灰度增強、圖像復原等等），并至少對其中一種處理方法獨立編程實現，不能完全使用工具箱中的函數。（2）、參考ph

2、otoshop軟件或參考matlab軟件中GUI設計，設計軟件界面，對處理前后的圖像以及直方圖等進行對比顯示；（3）、將實驗結果與其他軟件實現的效果進行比較、分析。總結設計過程所遇到的問題。（4）、可設計菜單式界面，在功能較少的情況下，也可以設計按鍵式界面，視功能多少而定。三、設計過程及步驟1）使用圖形用戶界面開發環境（GUIDE）中的開發工具,設計GUI布局；2）創建GUI應用程序，在自動生成的M文件中編寫程序代碼及調用相關函數，運行結果如下：直方圖均勻化顯示原圖非比例放大比例放大線性變換邊緣銳化四、MATLAB源代碼function varargout = untitled(varargi

3、n)% UNTITLED MATLAB code for untitled.fig% UNTITLED, by itself, creates a new UNTITLED or raises the existing% singleton*.% H = UNTITLED returns the handle to a new UNTITLED or the handle to% the existing singleton*.% UNTITLED(CALLBACK,hObject,eventData,handles,.) calls the local% function named CAL

4、LBACK in UNTITLED.M with the given input arguments.% UNTITLED(Property,Value,.) creates a new UNTITLED or raises the% existing singleton*. Starting from the left, property value pairs are% applied to the GUI before untitled_OpeningFcn gets called. An% unrecognized property name or invalid value make

5、s property application% stop. All inputs are passed to untitled_OpeningFcn via varargin.% *See GUI Options on GUIDEs 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 untitled % Last Modifie

6、d by GUIDE v2.5 06-Dec-2013 13:54:24 % Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct(gui_Name, mfilename, . gui_Singleton, gui_Singleton, . gui_OpeningFcn, untitled_OpeningFcn, . gui_OutputFcn, untitled_OutputFcn, . gui_LayoutFcn, , . gui_Callback, );if nargin & ischar(

7、varargin1) gui_State.gui_Callback = str2func(varargin1);end if nargout varargout1:nargout = gui_mainfcn(gui_State, varargin:);else gui_mainfcn(gui_State, varargin:);end% End initialization code - DO NOT EDIT % - Executes just before untitled is made visible.function untitled_OpeningFcn(hObject, even

8、tdata, 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 untitled (see VARARGIN) % Choose def

9、ault command line output for untitledhandles.output = hObject; % Update handles structureguidata(hObject, handles); % UIWAIT makes untitled wait for user response (see UIRESUME)% uiwait(handles.figure1); % - Outputs from this function are returned to the command line.function varargout = untitled_Ou

10、tputFcn(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 handle

11、s structurevarargout1 = handles.output; %顯示原圖% - Executes on button press in pushbutton1.function pushbutton1_Callback(hObject, eventdata, handles)a=imread(cameraman.jpg);imshow(a); % hObject handle to pushbutton1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles

12、structure with handles and user data (see GUIDATA) % 比例放大% - Executes on button press in pushbutton3.function pushbutton3_Callback(hObject, eventdata, handles)a=imread(cameraman.jpg);b=imresize(a,5,bilinear);imshow(b); % hObject handle to pushbutton3 (see GCBO)% eventdata reserved - to be defined in

13、 a future version of MATLAB% handles structure with handles and user data (see GUIDATA) % 非比例放大% - Executes on button press in pushbutton4.function pushbutton4_Callback(hObject, eventdata, handles)a=imread(cameraman.jpg);c=imresize(a,800 800);imshow(c); % hObject handle to pushbutton4 (see GCBO)% ev

14、entdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) % 直方圖均勻化% - Executes on button press in pushbutton6.function pushbutton6_Callback(hObject, eventdata, handles)I=imread(cameraman.jpg);J=histeq(I);subplot(411);imshow(I);subplot(

15、412);imshow(J);subplot(413);imhist(I);subplot(414);imhist(J);% 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) %線性變換% - Executes on button press in pushbutton7.function pushbutton7_

16、Callback(hObject, eventdata, handles)a=imread(cameraman.jpg);b=2*a+1;subplot(2,1,1);imshow(a);subplot(2,1,2);imshow(b); % 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) % 邊緣檢測銳化% -

17、 Executes on button press in pushbutton8.function pushbutton8_Callback(hObject, eventdata, handles)I = imread(cameraman.jpg);H=fspecial(sobel);J=imfilter(I,H);K=fspecial(prewitt);M=imfilter(I,K);G=edge(I,roberts);subplot(4,1,1); imshow(I);subplot(4,1,2); imshow(J);subplot(4,1,3); imshow(M);subplot(4

18、,1,4); imshow(G);% 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) %退出 % - Executes on button press in pushbutton9.function pushbutton9_Callback(hObject, eventdata, handles)exit(0);%