裁剪图像.rar_图像 裁剪_图像裁剪_裁剪图像

function varargout = picturecrop(varargin) % PICTURECROP M-file for picturecrop.fig % PICTURECROP, by itself, creates a new PICTURECROP or raises the existing % singleton*. % % H = PICTURECROP returns the handle to a new PICTURECROP or the handle to % the existing singleton*. % % PICTURECROP('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in PICTURECROP.M with the given input arguments. % % PICTURECROP('Property','Value',...) creates a new PICTURECROP or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before picturecrop_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to picturecrop_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 picturecrop % Last Modified by GUIDE v2.5 08-Oct-2009 09:27:15 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @picturecrop_OpeningFcn, ... 'gui_OutputFcn', @picturecrop_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 picturecrop is made visible. function picturecrop_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 picturecrop (see VARARGIN) global pic_cut down; pic_cut=0; down=0; % Choose default command line output for picturecrop handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes picturecrop wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = picturecrop_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 search. function search_Callback(hObject, eventdata, handles) % hObject handle to search (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;*.gif','(*.bmp;*.jpg;*.gif)';'*.bmp','(*.bmp)';'*.jpg','(*.jpg)';'*.gif','(*.gif)';},'打开图片'); A=imread([pathname,filename]); cla(handles.axes1); axes(handles.axes1); imshow(A); handles.image=A; guidata(hObject,handles); % --- Executes on button press in crop. function crop_Callback(hObject, eventdata, handles) % hObject handle to crop (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global pic_cut; pic_cut=1; handles.begin_point=get(gca,'currentpoint'); %先初始化开始的点的坐标，否则程序会报错 guidata(hObject,handles); % --- Executes on button press in save. function save_Callback(hObject, eventdata, handles) % hObject handle to save (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) newdata=handles.newdata; [file path]=uiputfile('*.jpg;','保存图像'); filename=fullfile(path,file); imwrite(newdata,filename); % --- Executes on mouse press over figure background, over a disabled or % --- inactive control, or over an axes background. function figure1_WindowButtonDownFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global pic_cut down; down=1; if pic_cut==1&&down==1 begin_point=get(gca,'currentpoint'); %------按下鼠标左键时取得鼠标当前的坐标值------- handles.begin_point=begin_point; end guidata(hObject,handles); % --- Executes on mouse motion over figure - except title and menu. function figure1_WindowButtonMotionFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global pic_cut down; if pic_cut==1&&down==1 begin_point=handles.begin_point; end_point=get(gca,'currentpoint'); %----------鼠标移动时取得鼠标当前的坐标值------- x0=begin_point(1,1); y0=begin_point(1,2); x=end_point(1,1); y=end_point(1,2); width=abs(x-x0); height=abs(y-y0); rect=[min(x,x0) min(y, y0) width height]; if width*height~=0 data=handles.image; axes(handles.axes1); imshow(data); %------------用rectangle函数显示选中的图像截取区域------------------------ rectangle('Position',rect,'edgecolor','r','LineWidth',2,'LineStyle','--'); handles.rect=rect; guidata(hObject,handles); end end guidata(hObject,handles); % --- Executes on mouse press over figure background, over a disabled or % --- inactive control, or over an axes background. function figure1_WindowButtonUpFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global pic_cut down; if pic_cut==1 rect=handles.rect; data=handles.image; newdata=imcrop(data,rect);%------截取图像的选中区域--------- cla;%----------取消图像上的矩形选中区域--------------- axes(handles.axes1); imshow(newdata); pic_cut=0; down=0; handles.newdata=newdata; guidata(hObject,handles); end