i made an gui and displayed an image now i want to use imfreehand to crop the image and update it at the same axes.

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keshav satpute 2018-2-25

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https://ww2.mathworks.cn/matlabcentral/answers/384645-i-made-an-gui-and-displayed-an-image-now-i-want-to-use-imfreehand-to-crop-the-image-and-update-it-at

评论： keshav satpute 2018-2-25

    function varargout = newGUI(varargin)
    % NEWGUI MATLAB code for newGUI.fig
    %      NEWGUI, by itself, creates a new NEWGUI or raises the existing
    %      singleton*.
    %
    %      H = NEWGUI returns the handle to a new NEWGUI or the handle to
    %      the existing singleton*.
    %
    %      NEWGUI('CALLBACK',hObject,eventData,handles,...) calls the local
    %      function named CALLBACK in NEWGUI.M with the given input arguments.
    %
    %      NEWGUI('Property','Value',...) creates a new NEWGUI or raises the
    %      existing singleton*.  Starting from the left, property value pairs are
    %      applied to the GUI before newGUI_OpeningFcn gets called.  An
    %      unrecognized property name or invalid value makes property application
    %      stop.  All inputs are passed to newGUI_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 newGUI
    % Last Modified by GUIDE v2.5 24-Feb-2018 00:28:02
    % Begin initialization code - DO NOT EDIT
    gui_Singleton = 1;
    gui_State = struct('gui_Name',       mfilename, ...
        'gui_Singleton',  gui_Singleton, ...
        'gui_OpeningFcn', @newGUI_OpeningFcn, ...
        'gui_OutputFcn',  @newGUI_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 newGUI is made visible.
    function newGUI_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 newGUI (see VARARGIN)
    % Choose default command line output for newGUI
    handles.output = hObject;
    % Update handles structure
    guidata(hObject, handles);
    % UIWAIT makes newGUI wait for user response (see UIRESUME)
    % uiwait(handles.figure1);
    % --- Outputs from this function are returned to the command line.
    function varargout = newGUI_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 pushbutton5.
    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)
    [file path] = uigetfile({'*.jpg;*.jpeg;*.jpe;*.jfif','JPEG (.jpg;.jpeg;.jpe;.jfif)';'*.png','PNG (.png)';'*.tif;*.tiff','TIF (.tif;.tiff)';'*.jpg;*.jpeg;*.jpe;*.jfif;*.png;*.tif;*.tiff','All Picture Files'
        '*.*','All Files' },'Select Image To Search');
    I=imread([path file])
    set(handles.axes7,'Units','pixels');
    resizePos = get(handles.axes7,'Position');
    myImage= imresize(I, [resizePos(3) resizePos(3)]);
    axes(handles.axes7);
    imshow(I);
    set(handles.axes7,'Units','normalized');
    % --- Executes on button press in pushbutton6.
    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)
    % --- Executes on button press in pushbutton7.
    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)
    % --- Executes on button press in pushbutton8.
    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)
    % --- Executes on button press in pushbutton9.
    function pushbutton9_Callback(hObject, eventdata, handles)
    % hObject    handle to pushbutton9 (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)
    axes(handles.axes7);  % Assuming you want axes2 to be the one you draw in.
    i = imfreehand();
    %i=imfreehand;
    %position = wait(i);
    M = ~i.createMask();
    mask(:,:,1)=M;
    mask(:,:,2)=M;
    mask(:,:,3)=M;
    I(mask)=255;
    axes(handles.axes7);
    imshow(I,'parent');
    % --- Executes on button press in pushbutton10.
    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)
    close;
    % --- Executes on button press in pushbutton12.
    function pushbutton12_Callback(hObject, eventdata, handles)
    % hObject    handle to pushbutton12 (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 pushbutton11.
    function pushbutton11_Callback(hObject, eventdata, handles)
    % hObject    handle to pushbutton11 (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)