【图像检索】基于Hu不变矩实现图像检索matlab代码

1 简介

描述了一种基于 Hu 形状不变矩的图像全局形状特征提取方法和算法 IMS 。 实验结果表明 , 使用 IMS 。 算法提取的形状特征向量具有对平移 、 旋转和尺度变化的不变性 , 适合于进行图像形状的检索 。

2 部分代码

function varargout = MainForm ( varargin ) % MAINFORM MATLAB code for MainForm.fig %     MAINFORM, by itself, creates a new MAINFORM or raises the existing %     singleton*. % %     H = MAINFORM returns the handle to a new MAINFORM or the handle to %     the existing singleton*. % %     MAINFORM(’CALLBACK’,hObject,eventData,handles,...) calls the local %     function named CALLBACK in MAINFORM.M with the given input arguments. % %     MAINFORM(’Property’,’Value’,...) creates a new MAINFORM or raises the %     existing singleton*. Starting from the left, property value pairs are %     applied to the GUI before MainForm_OpeningFcn gets called. An %     unrecognized property name or invalid value makes property application %     stop. All inputs are passed to MainForm_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 MainForm % Last Modified by GUIDE v2.5 05-Apr-2015 17:23:30 % Begin initialization code - DO NOT EDIT gui_Singleton = 1 ; gui_State = struct ( ’gui_Name’ ,       mfilename , ...     ’gui_Singleton’ ,   gui_Singleton , ...     ’gui_OpeningFcn’ , @ MainForm_OpeningFcn , ...     ’gui_OutputFcn’ ,   @ MainForm_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 MainForm is made visible. function MainForm_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 MainForm (see VARARGIN) % Choose default command line output for MainForm handles . output = hObject ; InitAxes ( handles ); handles . filePath = 0 ; handles . vec_hu = 0 ; handles . vec_color = 0 ; handles . Img = 0 ; handles . ind_dis_sort = 0 ; handles . page = 0 ; handles . H = 0 ; % Update handles structure guidata ( hObject , handles ); % javaFrame = get(hObject, ’JavaFrame’); % javaFrame.setFigureIcon(javax.swing.ImageIcon(’MainForm.jpg’)); % UIWAIT makes MainForm wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = MainForm_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 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) if handles . page < 2     return ; end page = handles . page ; ind_dis_sort = handles . ind_dis_sort ; H = handles . H ; page = page - 1 ; st = ( page -1 ) * 8+1 ; et = page * 8 ; for i = st : et     file = fullfile ( pwd , sprintf ( ’%s’ , H ( ind_dis_sort ( i )) . filename ));     Img = imread ( file );     imshow ( Img , [], ’parent’ , eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     axes ( eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     title ( sprintf ( ’%02d’ , i )); end handles . ind_dis_sort = ind_dis_sort ; handles . page = page ; guidata ( hObject , handles ); set ( handles . textpage , ’String’ , sprintf ( ’第%d页/共2页’ , page )); % --- 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) if handles . page > = 2     return ; end page = handles . page ; ind_dis_sort = handles . ind_dis_sort ; H = handles . H ; page = page + 1 ; st = ( page -1 ) * 8+1 ; et = page * 8 ; for i = st : et     file = fullfile ( pwd , sprintf ( ’%s’ , H ( ind_dis_sort ( i )) . filename ));     Img = imread ( file );     imshow ( Img , [], ’parent’ , eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     axes ( eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     title ( sprintf ( ’%02d’ , i )); end handles . ind_dis_sort = ind_dis_sort ; handles . page = page ; guidata ( hObject , handles ); set ( handles . textpage , ’String’ , sprintf ( ’第%d页/共2页’ , page )); % --- Executes on button press in pushbutton2. function pushbutton2_Callback ( hObject , eventdata , handles ) % hObject   handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles   structure with handles and user data (see GUIDATA) start_path = fullfile ( pwd , ’database’ ); dialog_title = ’选择数据库’ ; folder_name = uigetdir ( start_path , dialog_title ); if isequal ( folder_name , 0 )     return ; end db_file = fullfile ( folder_name , ’H.mat’ ); if ~ exist ( db_file , ’file’ )     msgbox ( ’未找到特征数据库，请进行特征提取操作！’ , ’提示信息’ );     return ; end load ( db_file ); handles . folder_name = folder_name ; handles . H = H ; guidata ( hObject , handles ); msgbox ( ’选择数据库成功！’ , ’提示信息’ ); % --- Executes on button press in pushbutton3. function pushbutton3_Callback ( hObject , eventdata , handles ) % hObject   handle to pushbutton3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles   structure with handles and user data (see GUIDATA) if isequal ( handles . Img , 0 )     return ; end vec_hu = get_hu_vec ( handles . Img ); handles . vec_hu = vec_hu ; guidata ( hObject , handles ); msgbox ( ’提取Hu特征成功！’ , ’提示信息’ ); % --- Executes on button press in pushbutton4. function pushbutton4_Callback ( hObject , eventdata , handles ) % hObject   handle to pushbutton4 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles   structure with handles and user data (see GUIDATA) if isequal ( handles . Img , 0 )     return ; end vec_color = get_color_vec ( handles . Img ); handles . vec_color = vec_color ; guidata ( hObject , handles ); msgbox ( ’提取颜色特征成功！’ , ’提示信息’ ); % --- 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) if isequal ( handles . vec_hu , 0 ) || isequal ( handles . vec_color , 0 )     return ; end ind_dis_sort = SearchResult ( handles . vec_hu , handles . vec_color , handles . H ); H = handles . H ; page = 0 ; page = page + 1 ; st = ( page -1 ) * 8+1 ; et = page * 8 ; for i = st : et     file = fullfile ( pwd , sprintf ( ’%s’ , H ( ind_dis_sort ( i )) . filename ));     Img = imread ( file );     imshow ( Img , [], ’parent’ , eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     axes ( eval ( sprintf ( ’handles.axes%d’ , ( i - ( page -1 ) * 8 ) +1 )));     title ( sprintf ( ’%02d’ , i )); end handles . ind_dis_sort = ind_dis_sort ; handles . page = page ; guidata ( hObject , handles ); set ( handles . textpage , ’String’ , sprintf ( ’第%d页/共2页’ , page )); % --- 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) choice = questdlg ( ’确定要退出系统?’ , ...     ’退出’ , ...     ’确定’ , ’取消’ , ’取消’ ); switch choice     case ’确定’         close ;     case ’取消’         return ; end % --- Executes on button press in pushbutton1. function pushbutton1_Callback ( hObject , eventdata , handles ) % 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) filePath = OpenImageFile (); if isequal ( filePath , 0 )     return ; end if ~ isequal ( handles . filePath , 0 )     InitAxes ( handles ); end handles . filePath = 0 ; handles . vi = 0 ; handles . Img = 0 ; handles . ind_dis_sort = 0 ; handles . page = 0 ; [ Img , map ] = imread ( filePath ); if ~ isempty ( map )     Img = ind2rgb ( Img , map ); end imshow ( Img , [], ’parent’ , handles . axes1 ); handles . filePath = filePath ; handles . Img = Img ; guidata ( hObject , handles );

3 仿真结果

4 参考文献

[1]张恒博, 商周, and 李灵华. "一种基于改进Hu矩的图像检索方法." 大连民族学院学报 13.5(2011):4.

微信扫一扫赞赏作者 赞赏

长按二维码向我转账

受苹果公司新规定影响，微信 iOS 版的赞赏功能被关闭，可通过二维码转账支持公众号。