Codes HUFFMAN compression and decompression GUI

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can anyone tell me , or teach me about huffman compression and decompression in gui matlab , because i can't find it anywhere about turtorial to make coding about huffman compression or decompression. thanks , and forgive my bad english .
  5 Comments
Jean Marcellino
Jean Marcellino on 7 Sep 2016
sir i have made some coding in GUI Matlab but i have trouble i can't show the images at axes 2 and idk how to fit the images in axes
Jean Marcellino
Jean Marcellino on 7 Sep 2016
Edited: Walter Roberson on 7 Sep 2016
function varargout = test(varargin)
% TEST MATLAB code for test.fig
% TEST, by itself, creates a new TEST or raises the existing
% singleton*.
%
% H = TEST returns the handle to a new TEST or the handle to
% the existing singleton*.
%
% TEST('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in TEST.M with the given input arguments.
%
% TEST('Property','Value',...) creates a new TEST or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before test_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to test_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 test
% Last Modified by GUIDE v2.5 20-Aug-2016 19:59:38
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @test_OpeningFcn, ...
'gui_OutputFcn', @test_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 test is made visible.
function test_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 test (see VARARGIN)
% Choose default command line output for test
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes test wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = test_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 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)
[nama_file,nama_path] = uigetfile({'*.jpg','File Citra(*.jpg)';
'*.png','File PNG(*.png)';...
'*.tif','File TIF(*.tif)';...
'*.*','Semua File(*.*)'},...
'buka file citra asli');
if ~isequal(nama_file,0);
handles.citra=imread(fullfile(nama_path,nama_file));
red=handles.citra(:,:,1); %memisahkan warna merah dari image
r=red.';
green = handles.citra(:,:,2); % memisahkan warna hijau dari image
g=green.';
blue = handles.citra(:,:,3); % memisahkan warna biru dari image
b=blue.';
gbr = cat (3,r,g,b);
isequal(handles.citra,gbr)
gbr=double(gbr);
[handles.baris handles.kolom handles.layer]=size(gbr);
handles.jum=handles.baris*handles.kolom*handles.layer;
handles.data=(reshape(gbr,1,handles.jum));
handles.pjgasli=(length(handles.data))*8;
guidata(hObject,handles);
axes(handles.axes1);
imshow(handles.citra);
else
return;
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)
[nama_file_simpan, path_simpan]=uiputfile(...
{'*.huff','File kompres(*.huff)'},...
'Menyimpan File Citra Hasil Kompresi JPEG');
tic
h = waitbar(0,'Harap Tunggu...');
for i=1:100,
waitbar(i/100)
end
close(h)
%kompresihuff
[frek,nil]=hist(handles.data,unique(handles.data));
frek=frek/sum(frek);
handles.dict = huffmandict(nil,frek); % Create the dictionary.
hcode = huffmanenco(handles.data,handles.dict);
if ~isequal(nama_file_simpan,0)
shuff=strcat(path_simpan, nama_file_simpan);
save (shuff,'hcode');
else
return;
end
guidata(hObject,handles);
pjghuff=length(hcode);
ratio2=100-((pjghuff/handles.pjgasli)*100);
t2=toc;
set(handles.huf_rat,'String',ratio2);
set(handles.huf_pro,'String',t2);
set(handles.huff_size,'String',pjghuff);
% --- 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)
[nama_file_huff,nama_path_huff] = uigetfile(...
{'*.huff','File kompres(*.huff)'},...
'Buka File Huffman');
if ~isequal(nama_file_huff,0)
hcode=importdata(fullfile(nama_path_huff, nama_file_huff));
else
return;
end
tic
h = waitbar(0,'Harap Tunggu...');
for i=1:100,
waitbar(i/100)
end
close(h)
%kompresihuff decode
dhsig = huffmandeco(hcode,handles.dict); % Decode the code.
hsl=uint8(reshape(dhsig,handles.baris,handles.kolom,handles.layer));
red = hsl(:,:,1); % memisahkan warna merah dari image
r=red.';
green = hsl(:,:,2); % memisahkan warna hijau dari image
g=green.';
blue = hsl(:,:,3); % memisahkan warna biru dari image
b=blue.';
hslhuff = cat (3,r,g,b);
isequal(hsl,hslhuff)
axes(handles.axes3);
imshow(hslhuff);
guidata(hObject,handles);
pjgdehuff=length(hslhuff);
ratio3=100-((pjgdehuff/handles.pjgasli)*100);
t3=toc;
set(handles.dehuff_rat,'String',ratio3);
set(handles.dehuff_pro,'String',t3);
set(handles.dehuff_size,'String',pjgdehuff);

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Answers (1)

aimad oumansour
aimad oumansour on 12 Nov 2022
Hi, we can sharing the interface GUI?

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