[image hiding] digital image information hiding system based on DCT, DWT, LHA, LSB, including various attacks and performance parameters, with matlab code

1 Content introduction

1.1 The purpose and significance of the research Since the 1990s , The Internet has been rapidly popularized in our life , The network almost exists In every household , In particular, some software for communication has brought to our lives since its birth Great convenience , Make it easy for people to communicate . But while the Internet facilitates our life , Also to the network Security poses a great threat . For example, we usually use the network or multimedia to communicate or send materials , This way of transmission breaks the previous correspondence , It greatly facilitates people's life , But in this message passed In the process, the security risks that can be seen everywhere on the network cannot be underestimated . For example, illegal people will intercept secrets Secret information , And publish the secret information after certain editing , The receiver will receive the wrong message and Cause great mistakes , If it is serious, it will cause a devastating blow to an enterprise and government agencies . In order to combat this kind of use of network theft , Even use the network to steal State secrets or enterprise secrets to commit crimes Behavior , In addition to the post-processing method of alarming by the public security organ , This behavior should also be considered directly in Strangle at the source , Therefore, it is urgent to study information security technology . At present, there are two main information security technologies , One is the traditional information security means encryption technology , The other is the emerging information security means information hiding technology [1]. Nowadays, these two technologies are widely studied and applied . Encryption technology was born much earlier than information hiding technology For a long time , It is also the most traditional means of information security , Encryption technology is through a series of transformations of plaintext , Get an end Ciphertext that can't see the original appearance of plaintext , By encrypting the ciphertext , Send it to the receiver , The receiver then Carry out a series of decryption work to ensure information security [2]. The birth of encryption technology has brought a lot to the field of information security Breakthrough , But this technology also brings some problems , For example, the illegal person can completely see this encrypted information , will Purposefully break through the encrypted information , If it arouses the interest of illegal persons, it is likely to be decrypted or Be destroyed . Information hiding technology solves the problem that encryption technology is easy to be targeted , It hides secret information Existence , So that the illegal person does not notice the existence of secret information , There will be no targeted attack . the Technology embeds secret information in a carrier that can be publicly disseminated , But it does not change the original appearance of the public carrier Son 、 Value and so on , To realize the transmission of secret information [3]. however , Once the secret information transmitted through hiding is found , Secret information will be exposed directly , Therefore, combined with the requirements of users for high concealment and high security of information security , Examination Considering the combination of encryption and information hiding [4].

Information hiding is a new information security technology , In information war , Digital media has many important applications in intellectual property protection and bill anti-counterfeiting . But as a discipline in the field of information security , There has been no systematic theoretical research on its security . We combine the relevant knowledge of Information Hiding Algorithm , For image-based airspace LSB Hiding algorithms 、DWT Transformation algorithm 、LHA Algorithm and DCT The security of transform domain algorithm is analyzed , I hope it can be helpful to the theoretical research of security . Experiments show that , The algorithm is applicable to pepper and salt 、 White noise 、 wave filtering 、 shear 、 A series of attacks such as compression and rotation have good robustness .

2 Simulation code

function varargout = info_hiding_gui(varargin)% INFO_HIDING_GUI M-file for info_hiding_gui.fig%      INFO_HIDING_GUI, by itself, creates a new INFO_HIDING_GUI or raises the existing%      singleton*.%%      H = INFO_HIDING_GUI returns the handle to a new INFO_HIDING_GUI or the handle to%      the existing singleton*.%%      INFO_HIDING_GUI('CALLBACK',hObject,eventData,handles,...) calls the local%      function named CALLBACK in INFO_HIDING_GUI.M with the given input arguments.%%      INFO_HIDING_GUI('Property','Value',...) creates a new INFO_HIDING_GUI or raises the%      existing singleton*.  Starting from the left, property value pairs are%      applied to the GUI before info_hiding_gui_OpeningFcn gets called.  An%      unrecognized property name or invalid value makes property application%      stop.  All inputs are passed to info_hiding_gui_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 info_hiding_gui​% Last Modified by GUIDE v2.5 05-Jun-2010 19:09:16​% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @info_hiding_gui_OpeningFcn, ...                   'gui_OutputFcn',  @info_hiding_gui_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 info_hiding_gui is made visible.function info_hiding_gui_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 info_hiding_gui (see VARARGIN)clc;V=get(0,'screensize') ;% Get the size information of the current root screen a=V(3)/2-500;b=V(4)/2-334;set(gcf,'Position',[a b 1001 669])%clear;% Choose default command line output for info_hiding_guihandles.output = hObject;% Update handles structureguidata(hObject, handles);set(handles.radiobutton31,'value',1);% Set the default value of noise attack to “ Noiseless ”set(handles.radiobutton32,'value',1);% Set the default value of filtering processing to “ No filtering ”set(handles.slider6,'value',0);% Set the default value of the slider to 0set(handles.slider7,'value',0);set(handles.slider8,'value',0);%set(handles.slider9,'value',0);set(handles.slider10,'value',0);set(handles.edit8,'string',0);set(handles.edit9,'string',0);set(handles.edit10,'string',0);%set(handles.edit11,'string',0);set(handles.edit12,'string',0);set(handles.edit15,'string',0);%key_1=[];% The initialization key is empty %key_2=[];%set(handles.edit1,'string','');%set(handles.edit2,'string','');​% UIWAIT makes info_hiding_gui wait for user response (see UIRESUME)% uiwait(handles.figure1);​​% --- Outputs from this function are returned to the command line.function varargout = info_hiding_gui_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 structurevarargout{1} = handles.output;​​% --- Executes on button press in pushbutton12.function pushbutton12_Callback(hObject, eventdata, handles)% hObject    handle to pushbutton12 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)response=questdlg(' Are you sure you want to close this program ?',' Prompt dialog ',' close ',' Cancel ',1);if strcmp(' close ',response)    close(gcf)end​% --- Executes on button press in pushbutton13.function pushbutton13_Callback(hObject, eventdata, handles)% hObject    handle to pushbutton13 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)%msgbox('name',' Copyright notice ','string','Copyright ? 2010-2100  He Jie   Nanjing University of Posts and telecommunications ' )V=get(0,'screensize') ;% Get the size information of the current root screen a=V(3)/2-234+3;b=V(4)/2-132+70;copyright('Position',[a b 468 264])% Set Popup copyright The window is near the middle of the screen                                    ​% --- Executes on button press in pushbutton14.function pushbutton14_Callback(hObject, eventdata, handles)% hObject    handle to pushbutton14 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)V=get(0,'screensize') ;% Get the size information of the current root screen a=V(3)/2-151;b=V(4)/2-200+70;thanks('Position',[a b 303 403])​% --- Executes on slider movement.function slider6_Callback(hObject, eventdata, handles)% hObject    handle to slider6 (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,'Value') returns position of slider%        get(hObject,'Min') and get(hObject,'Max') to determine range of slidergaussian_slide=get(handles.slider6,'value');%disp(gaussian_slide)  % test set(handles.edit8,'string',gaussian_slide);​% --- Executes during object creation, after setting all properties.function slider6_CreateFcn(hObject, eventdata, handles)% hObject    handle to slider6 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called​% Hint: slider controls usually have a light gray background.if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))    set(hObject,'BackgroundColor',[.9 .9 .9]);end​​% --- Executes on slider movement.function slider7_Callback(hObject, eventdata, handles)% hObject    handle to slider7 (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,'Value') returns position of slider%        get(hObject,'Min') and get(hObject,'Max') to determine range of slidersalt_slide=get(handles.slider7,'value');%disp(gaussian_slide)  % test set(handles.edit9,'string',salt_slide);​% --- Executes during object creation, after setting all properties.function slider7_CreateFcn(hObject, eventdata, handles)% hObject    handle to slider7 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called​% Hint: slider controls usually have a light gray background.if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))    set(hObject,'BackgroundColor',[.9 .9 .9]);end​​% --- Executes on slider movement.function slider8_Callback(hObject, eventdata, handles)% hObject    handle to slider8 (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,'Value') returns position of slider%        get(hObject,'Min') and get(hObject,'Max') to determine range of sliderlocalvar_slide=get(handles.slider8,'value');%disp(gaussian_slide)  % test set(handles.edit10,'string',localvar_slide);​% --- Executes during object creation, after setting all properties.function slider8_CreateFcn(hObject, eventdata, handles)% hObject    handle to slider8 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called​% Hint: slider controls usually have a light gray background.if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))    set(hObject,'BackgroundColor',[.9 .9 .9]);end​​% --- Executes on slider movement.function slider9_Callback(hObject, eventdata, handles)% hObject    handle to slider9 (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,'Value') returns position of slider%        get(hObject,'Min') and get(hObject,'Max') to determine range of sliderpoisson_slide=get(handles.slider9,'value');%disp(gaussian_slide)  % test set(handles.edit11,'string',poisson_slide);​% --- Executes during object creation, after setting all properties.function slider9_CreateFcn(hObject, eventdata, handles)% hObject    handle to slider9 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called​% Hint: slider controls usually have a light gray background.if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))    set(hObject,'BackgroundColor',[.9 .9 .9]);end​​​function edit8_Callback(hObject, eventdata, handles)% hObject    handle to edit8 (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 edit8 as text%        str2double(get(hObject,'String')) returns contents of edit8 as a doublegaussian_edit=get(handles.edit8,'string');%disp(gaussian_slide)  % test gaussian_edit=str2num(gaussian_edit);if gaussian_edit>0.1||gaussian_edit<0    errordlg(' Input error , Please re-enter ！')    error();endset(handles.slider6,'value',gaussian_edit);​% --- Executes during object creation, after setting all properties.function edit8_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit8 (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 slider movement.function slider10_Callback(hObject, eventdata, handles)% hObject    handle to slider10 (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,'Value') returns position of slider%        get(hObject,'Min') and get(hObject,'Max') to determine range of sliderspeckle_slide=get(handles.slider10,'value');%disp(gaussian_slide)  % test set(handles.edit12,'string',speckle_slide);​% --- Executes during object creation, after setting all properties.function slider10_CreateFcn(hObject, eventdata, handles)% hObject    handle to slider10 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    empty - handles not created until after all CreateFcns called​% Hint: slider controls usually have a light gray background.if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))    set(hObject,'BackgroundColor',[.9 .9 .9]);end​​​function edit9_Callback(hObject, eventdata, handles)% hObject    handle to edit9 (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 edit9 as text%        str2double(get(hObject,'String')) returns contents of edit9 as a doublesalt_edit=get(handles.edit9,'string');%disp(gaussian_slide)  % test salt_edit=str2num(salt_edit);if salt_edit>0.1||salt_edit<0    errordlg(' Input error , Please re-enter ！')    error();endset(handles.slider7,'value',salt_edit);​​% --- Executes during object creation, after setting all properties.function edit9_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit9 (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​​​function edit10_Callback(hObject, eventdata, handles)% hObject    handle to edit10 (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 edit10 as text%        str2double(get(hObject,'String')) returns contents of edit10 as a doublelocalvar_edit=get(handles.edit10,'string');%disp(gaussian_slide)  % test localvar_edit=str2num(localvar_edit);if localvar_edit>0.1||localvar_edit<0    errordlg(' Input error , Please re-enter ！')    error();endset(handles.slider8,'value',localvar_edit);​​​% --- Executes during object creation, after setting all properties.function edit10_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit10 (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​​​function edit11_Callback(hObject, eventdata, handles)% hObject    handle to edit11 (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 edit11 as text%        str2double(get(hObject,'String')) returns contents of edit11 as a double​poisson_edit=get(handles.edit11,'string');%disp(gaussian_slide)  % test poisson_edit=str2num(poisson_edit);if poisson_edit>0.1||poisson_edit<0    errordlg(' Input error , Please re-enter ！')    error();endset(handles.slider9,'value',poisson_edit);​% --- Executes during object creation, after setting all properties.function edit11_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit11 (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​​​function edit12_Callback(hObject, eventdata, handles)% hObject    handle to edit12 (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 edit12 as text%        str2double(get(hObject,'String')) returns contents of edit12 as a doublespeckle_edit=get(handles.edit12,'string');%disp(gaussian_slide)  % test speckle_edit=str2num(speckle_edit);if speckle_edit>0.1||speckle_edit<0    errordlg(' Input error , Please re-enter ！')    error();endset(handles.slider10,'value',speckle_edit);​​% --- Executes during object creation, after setting all properties.function edit12_CreateFcn(hObject, eventdata, handles)% hObject    handle to edit12 (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 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)global im_cover global im_messageglobal key_2​get_var_error_expression % Determine whether to enter the key ​disp('LSB extract ')% test noisemyfilterlsb_get​% --- 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)​% Call the carrier image 、 Global variables of secret information image and key global im_cover global im_messageglobal key_2​get_var_error_expression % Determine whether to enter the key ​disp('DCT extract ') % test noisemyfilterdct_get​% --- Executes on button press in pushbutton9.function pushbutton9_Callback(hObject, eventdata, handles)% hObject    handle to pushbutton9 (see GCBO)% eventdata  reserved - to be defined in a future version of MATLAB% handles    structure with handles and user data (see GUIDATA)global im_cover global im_messageglobal key_2get_var_error_expression % Determine whether to enter the key ​disp('DWT extract ') % test noisemyfilterdwt_get​% --- 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 im_cover  % Definition im Is a global variable ​% Select the carrier image [filename,pathname]=...    uigetfile({'*.bmp'},' Select Picture ');​% Synthesis path + file name str=[pathname filename];​% Read the picture im_cover=imread(str);% Determine whether it is a grayscale image %if ndims(im_cover)~=2% if ~isgray(im_cover)%     errordlg(' Please select gray image as the carrier image ');%     error();% endim_cover=uint8(im_cover);set(handles.edit1,'string',str);​​​% --- 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)​global im_message  % Global variables ​% Select the carrier image [filename1,pathname1]=...    uigetfile({'*.bmp'},' Select Picture ');​% Synthesis path + file name str=[pathname1 filename1];​% Read the picture im_message=imread(str);% Judge whether it is a two-dimensional binary image %test_message=find(im_message~=0&im_message~=1);%if isempty(test_message)%    test_value=0;%else%    test_value=1;%end%if ndims(im_message)~=2||test_value%if any(im_message~=0|im_message~=1)% if ~isbw(im_message)%     errordlg(' Please select binary image as secret information image ');%     error();% end​set(handles.edit2,'string',str);​% --- 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)global im_coverglobal im_message  % Make the variables of the global carrier image ​% Judge whether the carrier image and secret information image have been selected if  isempty(im_cover)    errordlg(' Please select an image as the carrier image ',' error ');    error();endif  isempty(im_message)    errordlg(' Please choose a picture as a secret picture ',' error ');    error();end%if im_message==NULL%    errordlg(' Please select carrier image ');%    error();%endfiguresubplot(121);imshow(im_cover);title(' Carrier image ');subplot(122);imshow(im_message);title(' Secret information image ');​​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​​​​

3 Running results

4 reference

[1] Zhang Daqi , Qu Shiru , Kang Baosheng . be based on DCT and DWT Digital image hiding technology [J]. Journal of Northwest Polytechnic University , 2007, 25(3):5.

[2] Xu Kai . Research on image information hiding algorithm [D]. Guizhou University .

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