图像的灰度拉伸、直方图均衡化处理

function varargout = GUI(varargin) % GUI MATLAB code for GUI.fig % GUI, by itself, creates a new GUI or raises the existing % singleton*. % % H = GUI returns the handle to a new GUI or the handle to % the existing singleton*. % % GUI('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in GUI.M with the given input arguments. % % GUI('Property','Value',...) creates a new GUI or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before GUI_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to GUI_OpeningFcn via varargin. % % *See GUI Options on GUIDE's 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 GUI % Last Modified by GUIDE v2.5 11-Oct-2015 15:09:08 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @GUI_OpeningFcn, ... 'gui_OutputFcn', @GUI_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % --- Executes just before GUI is made visible. function GUI_OpeningFcn(hObject, eventdata, 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 GUI (see VARARGIN) % Choose default command line output for GUI handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes GUI wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = GUI_OutputFcn(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 handles structure varargout{1} = handles.output; % --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % 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) [filename,pathname]=uigetfile({'*.*';'*.bmp';'*.jpg';'*.tif';'*.jpeg'},'选择图像'); if isequal(filename,0)||isequal(pathname,0) errordlg('您还没有选取图片','温馨提示');%如果没有输入，则创建错误对话框 return; else image=[pathname,filename];%合成路径+文件名 %global A; A=imread(image);%读取图像 setappdata(0,'A',A); set(handles.axes1,'HandleVisibility','ON');%打开坐标，方便操作 axes(handles.axes1);%%使用图像，操作在坐标1 imshow(A);%在坐标axes1显示原图像 title('原始图像'); end % --- Executes on button press in pushbutton2. 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) %Hbt2=handles.pushbutton2; %F=@pushbutton1_Callback; %获取按钮2回调函数的句柄 %feval(F,Hbt2, eventdata, handles); A=getappdata(0,'A'); %global A; set(handles.axes2,'HandleVisibility','ON');%打开坐标，方便操作 axes(handles.axes2);%%使用图像，操作在坐标2 B=imadjust(A,[0,0.2],[0,0.8]); imshow(B); title('灰度拉伸'); % --- Executes on button press in pushbutton3. 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) A=getappdata(0,'A'); C=rgb2gray(A); set(handles.axes2,'HandleVisibility','ON');%打开坐标，方便操作 axes(handles.axes2);%使用图像，操作在坐标2 D=histeq(C); imhist(D); title('均衡化直方图');