www.gusucode.com > 用于图像处理的图形用户界面，可实现图像的翻转、加噪、边缘提取等功能 > 用于图像处理的图形用户界面，可实现图像的翻转、加噪、边缘提取等功能/imageshow.m

    function varargout = imageshow(varargin)
% IMAGESHOW M-file for imageshow.fig
%      IMAGESHOW, by itself, creates a new IMAGESHOW or raises the existing
%      singleton*.
%
%      H = IMAGESHOW returns the handle to a new IMAGESHOW or the handle to
%      the existing singleton*.
%
%      IMAGESHOW('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in IMAGESHOW.M with the given input arguments.
%
%      IMAGESHOW('Property','Value',...) creates a new IMAGESHOW or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before imageshow_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to imageshow_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

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help imageshow

% Last Modified by GUIDE v2.5 27-Nov-2008 17:41:49

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @imageshow_OpeningFcn, ...
                   'gui_OutputFcn',  @imageshow_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 imageshow is made visible.
function imageshow_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 imageshow (see VARARGIN)
[handles.original,handles.map] = imread('moon.tif');  %数据的初始化
handles.image = handles.original;
imshow(handles.image,handles.map);

% Choose default command line output for imageshow
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes imageshow wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = imageshow_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 original.
function original_Callback(hObject, eventdata, handles)
% hObject    handle to original (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
imshow(handles.original,handles.map);  %显示原图片

% --- Executes on button press in edge.
function edge_Callback(hObject, eventdata, handles)
% hObject    handle to edge (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
BW = edge(handles.image,'sobel');   %边缘检测，采用sobel算子
imshow(BW);

% --- Executes on button press in noise.
function noise_Callback(hObject, eventdata, handles)
% hObject    handle to noise (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
noise = imnoise(handles.image,'gaussian');  %添加高斯噪音
imshow(noise,handles.map);


% --- Executes on button press in fliplr.
function fliplr_Callback(hObject, eventdata, handles)
% hObject    handle to fliplr (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
handles.image = fliplr(handles.image);   %翻转矩阵，使图片水平翻转
imshow(handles.image,handles.map);
guidata(hObject,handles);                %将翻转后的矩阵记录，并更新到handles.image

% --- Executes on selection change in select.
function select_Callback(hObject, eventdata, handles)
% hObject    handle to select (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns select contents as cell array
%        contents{get(hObject,'Value')} returns selected item from select
val = get(hObject,'Value');
str = get(hObject,'String');
switch str{val}         %通过switch分支选择，打开不同的文件
    case 'moon'
        [handles.original,handles.map]=imread('moon.tif');
        handles.image = handles.original;
    case 'tree'
        [handles.original,handles.map]=imread('trees.tif');
        handles.image = handles.original;
    case 'rice'
        [handles.original,handles.map]=imread('rice.png');
        handles.image = handles.original;
end
guidata(hObject,handles);%更新handles


% --- Executes during object creation, after setting all properties.
function select_CreateFcn(hObject, eventdata, handles)
% hObject    handle to select (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end