数字图像处理实验四、基于GUIDE图像处理软件开发

实验四、基于GUIDE的图像处理软件开发

一、实验目的

（1）学习使用MATLAB GUIDE的基本操作。

（2）以图像增强为例完成基本图像处理功能的回调函数编写。

二、实验主要仪器设备

（1）台式机或笔记本电脑。

（2）MATLAB软件（含GUIDE开发环境）。

三、实验原理

（1）基于灰度直方图变换的图像增强。

（2）灰度修正图像增强。

（3）图像平滑滤波。

（4）图像锐化处理。

四、实验容

（1）直方图的计算及用直方图均衡原理增强图像。

（2）线性灰度变换图像增强。

（3）对受椒盐噪声污染的图像采用低通处理模板去燥。

（4）对受椒盐噪声污染的图像采用中值滤波去噪。

（5）对图像采用梯度算子和拉普拉斯算子进行锐化。

五、实验步骤

（1）建立开发环境。

（2）编写相关回调函数。

（3）不断调试、优化，获得较满意的人机交互效果。

六、实验程序

function varargout = test4(varargin)

% TEST4 MATLAB code for test4.fig

% TEST4, by itself, creates a new TEST4 or raises the existing

% singleton*.

%

% H = TEST4 returns the handle to a new TEST4 or the handle to

% the existing singleton*.

%

% TEST4('CALLBACK',hObject,eventData,handles,...) calls the local

% function named CALLBACK in TEST4.M with the given input arguments. %

% TEST4('Property','Value',...) creates a new TEST4 or raises the

% existing singleton*. Starting from the left, property value pairs are

% applied to the GUI before test4_OpeningFcn gets called. An

% unrecognized property name or invalid value makes property application % stop. All inputs are passed to test4_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 test4

% Last Modified by GUIDE v2.5 30-May-2017 17:23:54

% Begin initialization code - DO NOT EDIT

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, ...

'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', test4_OpeningFcn, ...

'gui_OutputFcn', test4_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 test4 is made visible.

function test4_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 test4 (see VARARGIN)

% Choose default command line output for test4

handles.output = hObject;

I = ones(256,256);

axes(handles.axes1);imshow(I);

axes(handles.axes2);imshow(I);

axes(handles.axes3);imshow(I);

axes(handles.axes4);imshow(I);

axes(handles.axes5);imshow(I);

axes(handles.axes6);imshow(I);

% Update handles structure

guidata(hObject, handles);

% UIWAIT makes test4 wait for user response (see UIRESUME)

% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line. function varargout = test4_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 OpenFile.

function OpenFile_Callback(hObject, eventdata, handles)

[file path] = uigetfile('*.bmp;*.jpg;*.png','ÇëÑ¡ÔñÒ»·ùͼÏñ');

if file == 0 warndlg('ÄãµÃÊäÈëÒ»·ùͼÏñ');

%¾¯¸æ¶Ô»°¿òÌáʾÊäÈëºÏ·¨Í¼ÏñÎļþ

else I = imread(fullfile(path,file));

axes(handles.axes1);