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.
部分理论引用网络文献，若有侵权联系博主删除。
5 MATLAB代码与数据下载地址
见博客主页
