基于霍夫曼图像编码的图像压缩和重建-Matlab代码.zip

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 19-May-2012 11:20:45 % 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; clc; % axis(handles.axes1); cla reset; box on; % set(gca, 'XTickLabel', '', 'YTickLabel', ''); % % axis(handles.axes2); cla reset; box on; % set(gca, 'XTickLabel', '', 'YTickLabel', ''); handles.Img = 0; handles.ImgH = 0; handles.ImgL = 0; handles.strH = 0; handles.strL = 0; InitFig(hObject,handles); % Update handles structure guidata(hObject, handles); % 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; % -------------------------------------------------------------------- function File_Callback(hObject, eventdata, handles) % hObject handle to File (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % -------------------------------------------------------------------- function OpenFile_Callback(hObject, eventdata, handles) % hObject handle to OpenFile (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % 打开 warning off all; % 载入图像 [FileName,PathName,FilterIndex] = uigetfile({'*.bmp;*.jpg;*.tif;*.png;*.gif', ... '所有图像文件';... '*.*','所有文件' },'载入图像',... '.\images\\lena.bmp'); if isequal(FileName, 0) || isequal(PathName, 0) return; end InitFig(hObject, handles); Img = imread(fullfile(PathName, FileName)); axes(handles.axes1); imshow(Img, []); handles.Img = Img; handles.ImgH = 0; handles.ImgL = 0; guidata(hObject, handles); function textInfo_Callback(hObject, eventdata, handles) % hObject handle to textInfo (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 textInfo as text % str2double(get(hObject,'String')) returns contents of textInfo as a double % --- Executes during object creation, after setting all properties. function textInfo_CreateFcn(hObject, eventdata, handles) % hObject handle to textInfo (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 SnapImg_Callback(hObject, eventdata, handles) % hObject handle to SnapImg (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % 截图 SnapImage(); % -------------------------------------------------------------------- function SaveImg_Callback(hObject, eventdata, handles) % hObject handle to SaveImg (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % 保存 if isequal(handles.ImgH, 0) && isequal(handles.ImgL, 0) msgbox('请进行压缩处理！', '提示信息'); return; end if ~isequal(handles.ImgH, 0) SaveImage(handles.ImgH); end if ~isequal(handles.ImgL, 0) SaveImage(handles.ImgL); end msgbox('处理结果保存成功！', '提示信息'); % -------------------------------------------------------------------- function Exit_Callback(hObject, eventdata, handles) % hObject handle to Exit (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) close(); % -------------------------------------------------------------------- function CompressAlgorithm_Callback(hObject, eventdata, handles) % hObject handle to CompressAlgorithm (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % -------------------------------------------------------------------- function Huffman_Callback(hObject, eventdata, handles) % hObject handle to Huffman (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) msgbox('请载入图像！', '提示信息'); return; end if isequal(handles.ImgH, 0) dataImg = handles.Img; if ndims(dataImg) == 3 dataImg = rgb2gray(dataImg); end sz = size(dataImg); [zipped,info] = Mat2Huff(dataImg); unzipped = Huff2Mat(zipped, info); dataImg = double(reshape(dataImg, sz)); unzipped = double(reshape(unzipped, sz)); info_dataImg = whos('dataImg'); info_zipped = whos('zipped'); info_unzipped = whos('unzipped'); S = PSNR(dataImg, unzipped); str0 = sprintf('-----------------霍夫曼压缩-----------------\n'); str1 = sprintf('原始数据维数为：%s，占用空间大小为：%d\n', num2str(info_dataImg.size), info_dataImg.bytes); str2 = sprintf('解压数据维数为：%s，占用空间大小为：%d\n', num2str(info_unzipped.size), info_unzipped.bytes); str3 = sprintf('压缩数据维数为：%s，占用空间大小为：%d\n', num2str(info_zipped.size), info_zipped.bytes); str4 = sprintf('压缩比为：%.3f%%\n', info_zipped.bytes/info_dataImg.bytes*100); str5 = sprintf('PSNR：%.3f\n', S); strH = [str0 str1 str2 str3 str4 str5]; set(handles.text