DIP课程大作业---图像分割

          数字图像处理课程的大作业，要求如下：

        图像分割就是把图像分成若干个特定的、具有独特性质的区域并提出感兴趣目标的技术和过程。它是由图像处理到图像分析的关键步骤。现有的图像分割方法主要分以下几类：基于阈值的分割方法、基于区域的分割方法、基于边缘的分割方法以及基于特定理论的分割方法等。图像分割后提取出的目标可以用于图像语义识别，图像搜索等等领域。
要求1：输入一副真彩色RGB图像dog.jpg，完成对小狗的分割，输入结果为只包含小狗区域的二值图（matlab环境下，小狗区域值为1，其他区域值为0）。
要求2：设计一个简单的图形用户界面GUI，显示输入图像和输出图像

<pre name="code" class="plain">function varargout = DIP(varargin)%DIP MATLAB code form  DIP.fig%DIP, by itself, creates a new DIP or raises the existing%singleton*.%%H = DIP returns the handle to a new DIP or the handle to%the existing singleton*.%%DIP('CALLBACK',hObject,eventData,handles,...) calls the local%function named CALLBACK in DIP.M with the given input arguments.%%DIP('Property','Value',...) creates a new DIP or raises the%existing singleton*.  Starting from the left, property value pairs are%applied to the GUI before DIP_OpeningFcn gets called.  An%unrecognized property name or invalid value makes property application%stop.  All inputs are passed to DIP_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 DIP%Last Modified by GUIDE v2.5 07-Jun-2015 01:02:20%Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @DIP_OpeningFcn, ...                   'gui_OutputFcn',  @DIP_OutputFcn, ...                   'gui_LayoutFcn',  [] , ...                   'gui_Callback',   []);if nargin && ischar(varargin{1})    gui_State.gui_Callback = str2func(varargin{1});endif 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 DIP is made visible.function DIP_OpeningFcn(hObject1, ~, handles1, 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 untitled6 (see VARARGIN)im=imread('dog.jpg');              %第一张图片的显示axes(handles1.axes1);guidata(hObject1, handles1);hold on;imshow(im);handles1.output = hObject1;% Update handles structureguidata(hObject1, handles1);% UIWAIT makes DIP wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.function varargout = DIP_OutputFcn(~, ~, 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 structurevarargout{1} = handles.output;% --- Executes on button press in pushbutton1.function pushbutton1_Callback(axes2, ~,handles2 )% 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)I=imread('dog.jpg');I1=rgb2hsv(I);                        %转到HSV空间I2=I1(:,:,2);                         %S分量BW1=im2bw(I2,0.4);                    bw1=BW1(80:650,45:680);               %分割peng = strel('diamond', 2);bw11=imdilate(bw1,peng,'same');       %膨胀bw111=~bw11;                          %取反saveas(gcf,'dog1','jpg'); axes(handles2.axes2);guidata(axes2, handles2);hold on;imshow(bw111);                        %显示处理完成的图片

处理完成的图片，效果还不错：