A list,
In 1974, J.Morlet, a French engineer, first proposed the concept of wavelet transform. In 1986, y.Meyer, a famous mathematician, accidentally constructed a real wavelet basis and established the multi-scale analysis of constructing wavelet basis in cooperation with S.Mallat. Wavelet analysis began to flourish. In mathematics, wavelet analysis has been used in numerical analysis, constructing fast numerical methods, constructing curves and surfaces, solving differential equations, cybernetics and so on. In signal analysis of filtering, noise removal, compression, transmission, etc. Image processing in the image compression, classification, recognition and diagnosis, noise and so on. This chapter will focus on the application of wavelet in image analysis. Wavelet analysis is a more difficult branch, the user uses wavelet transform, can realize the image compression, vibration signal decomposition and reconstruction, so it is widely used in practical engineering. Compared with Fourier transform, wavelet transform is a local transform in space domain and frequency domain, so it can effectively extract information from signals. The wavelet transform realizes the multi-scale decomposition and reconstruction of the signal through the basic operations such as scaling and translation, so as to solve many problems caused by Fourier transform to a large extent. Wavelet analysis is a new branch of mathematics, which is the perfect crystallization of functional analysis, Fourier analysis and numerical analysis. Wavelet analysis is also a new technology of “time-scale” analysis and multi-resolution analysis. It is widely used in signal analysis, speech synthesis, image compression and recognition, atmospheric and ocean wave analysis, etc. (1) Wavelet analysis is used for signal and image compression. Wavelet compression is characterized by high compression ratio, fast compression speed, and can keep the characteristics of signal and image unchanged after compression, and anti-interference in transmission. There are many compression methods based on wavelet analysis, including wavelet compression, wavelet packet compression, wavelet transform vector compression and so on. (2) Wavelet can also be used for signal filtering and denoising, signal time-frequency analysis, signal-noise separation and extraction of weak signals, fractal index, signal recognition and diagnosis and multi-scale edge detection. (3) Applications of wavelet analysis in engineering technology include computer vision, curve design, turbulence, remote universe research and biomedicine. 2. Multi-scale analysis
Ii. Source code
function varargout = mainGUI(varargin)
% MAINGUI MATLAB code for mainGUI.fig
% MAINGUI, by itself, creates a new MAINGUI or raises the existing
% singleton*.
%
% H = MAINGUI returns the handle to a new MAINGUI or the handle to
% the existing singleton*.
%
% MAINGUI('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in MAINGUI.M with the given input arguments.
%
% MAINGUI('Property'.'Value',...). creates anew MAINGUI or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before mainGUI_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to mainGUI_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 mainGUI
% Last Modified by GUIDE v2. 5 26-Mar- 2021. 12:46:25
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @mainGUI_OpeningFcn, ...
'gui_OutputFcn', @mainGUI_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 mainGUI is made visible.
function mainGUI_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 mainGUI (see VARARGIN)
% Choose default command line output for mainGUI
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes mainGUI wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = mainGUI_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;
function edit1_Callback(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor'.'white');
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)
global x
[filename,pathname]=uigetfile({'*.xlsx';'*.csv';'*.txt';'*.},'Load file');
set( handles.edit1,'String'.strcat(pathname,filename));
data=xlsread(strcat(pathname,filename));
x=data';
axes(handles.axes1)
plot(x);
axis tight
grid on
title('Primitive epileptic EEG')
xlabel('Sampling point');
ylabel('amplitude/mV');
msgbox('Data import completed! ')
% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject handle to popupmenu1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = cellstr(get(hObject,'String')) returns popupmenu1 contents as cell array
% contents{get(hObject,'Value')} returns selected item from popupmenu1
% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject handle to popupmenu1 (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 && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor'.'white');
end
function varargout = jiemian(varargin)
% JIEMIAN MATLAB code for jiemian.fig
% JIEMIAN, by itself, creates a new JIEMIAN or raises the existing
% singleton*.
%
% H = JIEMIAN returns the handle to a new JIEMIAN or the handle to
% the existing singleton*.
%
% JIEMIAN('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in JIEMIAN.M with the given input arguments.
%
% JIEMIAN('Property'.'Value',...). creates anew JIEMIAN or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before jiemian_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to jiemian_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 jiemian
% Last Modified by GUIDE v2. 5 29-Jul- 2020. 18:27:56
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @jiemian_OpeningFcn, ...
'gui_OutputFcn', @jiemian_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 jiemian is made visible.
function jiemian_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 jiemian (see VARARGIN)
% Choose default command line output for jiemian
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes jiemian wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = jiemian_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;
function edit1_Callback(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor'.'white');
end
ha=axes('units'.'normalized'.'pos'[0 0 1 1]);
uistack(ha,'down');
ii=imread('105.jpg');
image(ii);
colormap gray
set(ha,'handlevisibility'.'off'.'visible'.'on');
if ispc && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor'.'white');
end
function edit2_Callback(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor'.'white');
end
% --- 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)
userChar = get( handles.edit1, 'string' );
passChar = get( handles.edit2,'string' );
accountNumber = '20171008189'; % Default account keyWord ='dfgdbfd697'; % default password n = find(strcmp(accountNumber, {userChar}),1); % Checks whether the entered user name is the same as the default value. If they are, then n is not emptyif ~isempty( n ) && strcmp( keyWord,{passChar} )
h = msgbox( 'Welcome to the EEG processing system! ' );
uiwait( h );
delete( gcf ); % Close the current user login interface. Bishe % Call dataGUI
else
errordlg( 'Incorrect account or password, please re-enter! ' );
end
% --- 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)
close
% --- Executes during object creation, after setting all properties.
function text3_CreateFcn(hObject, eventdata, handles)
% hObject handle to text3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
Copy the codeThird, the operation result
Fourth, note
Version: 2014 a