shiyan4.m

均值滤波,加权滤波,中值滤波的MATLAB实例,用于图象及信号的处理

function varargout = shiyan4(varargin)
% SHIYAN4 M-file for shiyan4.fig
%      SHIYAN4, by itself, creates a new SHIYAN4 or raises the existing
%      singleton*.
%
%      H = SHIYAN4 returns the handle to a new SHIYAN4 or the handle to
%      the existing singleton*.
%
%      SHIYAN4('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in SHIYAN4.M with the given input arguments.
%
%      SHIYAN4('Property','Value',...) creates a new SHIYAN4 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before shiyan4_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to shiyan4_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

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help shiyan4

% Last Modified by GUIDE v2.5 02-Dec-2007 23:01:15

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @shiyan4_OpeningFcn, ...
                   'gui_OutputFcn',  @shiyan4_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 shiyan4 is made visible.
function shiyan4_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 shiyan4 (see VARARGIN)

% Choose default command line output for shiyan4
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes shiyan4 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = shiyan4_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 open1.
function open1_Callback(hObject, eventdata, handles)
% hObject    handle to open1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[file,path]=uigetfile('*.jpg;*.tif');
if isequal(file,0)
   disp('User selected Cancel')
else
  filename=fullfile(path,file);
end
picture=imread(filename);
%%%显示RGB分量
[r c d]=size(picture);
red(:,:,1)=picture(:,:,1);
red(:,:,2)=zeros(r,c);
red(:,:,3)=zeros(r,c);
red=uint8(red);
axes(handles.R)
set(handles.R, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(red);
hold on

green(:,:,2)=picture(:,:,2);
green(:,:,1)=zeros(r,c);
green(:,:,3)=zeros(r,c);
green=uint8(green);
axes(handles.G)
set(handles.G, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(green);
hold on

blue(:,:,3)=picture(:,:,3);
blue(:,:,1)=zeros(r,c);
blue(:,:,2)=zeros(r,c);
blue=uint8(blue);
axes(handles.B)
set(handles.B, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(blue);
hold on

%%显示HSI分量
rgb1=im2double(picture);
red=rgb1(:,:,1);
green=rgb1(:,:,2);
blue=rgb1(:,:,3);
for i=1:r
    for j=1:c
        a=[red(i,j),green(i,j),blue(i,j)];
        min1=min(a);
        max1=max(a);
        S(i,j)=max1-min1;
        I(i,j)=(red(i,j)+green(i,j)+blue(i,j))/3;
        if(blue(i,j)>green(i,j))
            H(i,j)=2*pi-acos(((red(i,j)-green(i,j))+(red(i,j)-blue(i,j)))/((2*sqrt((red(i,j)-green(i,j))^2+(red(i,j)-blue(i,j))*(green(i,j)-blue(i,j))))+eps));
        else
            H(i,j)=acos(((red(i,j)-green(i,j))+(red(i,j)-blue(i,j)))/((2*sqrt((red(i,j)-green(i,j))^2+(red(i,j)-blue(i,j))*(green(i,j)-blue(i,j))))+eps));
            
        end
        if(S(i,j)==0)
            H(i,j)=0;
        end
    end
end
axes(handles.H)
set(handles.H, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(H);
hold on

axes(handles.S)
set(handles.S, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(S);
hold on

axes(handles.I)
set(handles.I, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(I);
hold on


% --- Executes on button press in open2.
function open2_Callback(hObject, eventdata, handles)
% hObject    handle to open2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[file,path]=uigetfile('*.jpg;*.tif');
if isequal(file,0)
   disp('User selected Cancel')
else
  filename=fullfile(path,file);
end
handles.my_file=filename;
guidata(hObject,handles);

picture=imread(filename);
[r c d]=size(picture);
axes(handles.yuantu)
set(handles.yuantu, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
imshow(picture);
hold on


% --- Executes on selection change in select.
function select_Callback(hObject, eventdata, handles)
% hObject    handle to select (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns select contents as cell array
%        contents{get(hObject,'Value')} returns selected item from select
%type=get(handles.select,'string');
%handles.my_type=type;
%guidata(hObject,handles);
val = get(hObject,'Value');
%string_list = get(hObject,'String');
%selected_string = string_list{val};
handles.my_type=val;

guidata(hObject,handles);


% --- Executes during object creation, after setting all properties.
function select_CreateFcn(hObject, eventdata, handles)
% hObject    handle to select (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 mobanshu_Callback(hObject, eventdata, handles)
% hObject    handle to mobanshu (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 mobanshu as text
%        str2double(get(hObject,'String')) returns contents of mobanshu as a double


% --- Executes during object creation, after setting all properties.
function mobanshu_CreateFcn(hObject, eventdata, handles)
% hObject    handle to mobanshu (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 xianshi.
function xianshi_Callback(hObject, eventdata, handles)
% hObject    handle to xianshi (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
filename=handles.my_file;
type=handles.my_type;
m=str2double(get(handles.mobanshu,'String'));
picture=imread(filename);
[r c d]=size(picture);
switch type
    case 1
    B=my_mean1(filename,m);
    axes(handles.bianhuan)
    set(handles.bianhuan, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
    imshow(B);
    hold on
    case 2
         B=my_median1(filename,m); 
         axes(handles.bianhuan)
         set(handles.bianhuan, 'Visible', 'off', 'Units', 'pixels' ,'XLim',[0 r],'yLim',[0 c]);
         imshow(B);
         hold on
  
end