直方圖均衡含GUI

1、Digital Image ProcessingHistogram Equalization with GUI module Author:Andonghui_20090802310067The histogram equalization code:%對一幅圖像進行直方圖均衡化A=rgb2gray(picture); %圖像的預處理，讀入彩色圖像將其灰度化m,n=size(A);B=zeros(size(A);l=m*n;r=zeros(1,256);y=zeros(1,256);A=double(A);for i=1:m for j=1:n r(A(i,j)+1)=r(A(i,j)+1)+

2、1; endendr=r./l;%得到原圖像各灰度級所占的比例for k=1:256 for j=1:k y(k)=y(k)+r(j); endend %直方圖累加 for k=1:256 y(k)=floor(255*y(k)+0.5); %確定映射關系endfor i=1:m for j=1:n B(i,j)=y(A(i,j)+1); endendA=uint8(A);%轉換為無符號整數(shù)B=uint8(B);imshow(B);%顯示均衡化后的圖像 The GUI Function interface：Function :Transform the image into gray and

3、add Gaussian noiseFunctin:show the histogram of the original gray imageFunction: show the result of using histogram equalizationFunction:show the histogram of the processed imageThe whole code(GUI):function varargout = c(varargin)% Copyright 2012 Andonghui% C M-file for c.fig% C, by itself, creates

4、a new C or raises the existing% singleton*.% H = C returns the handle to a new C or the handle to% the existing singleton*.% C('CALLBACK',hObject,eventData,handles,.) calls the local% function named CALLBACK in C.M with the given input arguments.% C('Property','Value',.) crea

5、tes a new C or raises the% existing singleton*. Starting from the left, property value pairs are% applied to the GUI before c_OpeningFunction gets called. An% unrecognized property name or invalid value makes property application% stop. All inputs are passed to c_OpeningFcn via varargin.% *See GUI O

6、ptions 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 c % Last Modified by GUIDE v2.5 29-Mar-2012 12:10:00% Begin initialization code - DO NOT EDITgui_Singleton

7、 = 1;gui_State = struct('gui_Name', mfilename, . 'gui_Singleton', gui_Singleton, . 'gui_OpeningFcn', c_OpeningFcn, . 'gui_OutputFcn', c_OutputFcn, . 'gui_LayoutFcn', , . 'gui_Callback', );if nargin && ischar(varargin1) gui_State.gui_Callback =

8、str2func(varargin1);endif nargout varargout1:nargout = gui_mainfcn(gui_State, varargin:);else gui_mainfcn(gui_State, varargin:);end% End initialization code - DO NOT EDIT% - Executes just before c is made visible.function c_OpeningFcn(hObject, eventdata, handles, varargin)% This function has no outp

9、ut 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 c (see VARARGIN)% Choose default command line output for chandles.output = hObject;% Upd

10、ate handles structureguidata(hObject, handles);% UIWAIT makes c wait for user response (see UIRESUME)% uiwait(handles.figure1);% - Outputs from this function are returned to the command line.function varargout = c_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output arg

11、s (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 structurevarargout1 = handles.output;% - Executes on button press in read.function

12、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)guidata(hObject, handles);clear handles.picture;filename,pathname=uigetfile('D:

13、圖片1/*.*','select image');picture=pathname,filename;axes(handles.axes3);picture=imread(picture);imshow(picture)handles.picture=picture;guidata(hObject, handles);% - Executes on button press in gray.function pushbutton4_Callback(hObject, eventdata, handles)% hObject handle to pushbutton4 (

14、see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)guidata(hObject, handles);picture=handles.picture; B=rgb2gray(picture);axes(handles.axes4)imshow(B);% - Executes on button press in magnify.function pushbutton5_Call

15、back(hObject, eventdata, handles)% hObject handle to pushbutton5 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)guidata(hObject, handles);picture=handles.picture;G = imnoise(picture,'gaussian',0,0.05); a

16、xes(handles.axes2);imshow(G);% - Executes on button press in reduce.function pushbutton6_Callback(hObject, eventdata, handles)% hObject handle to pushbutton6 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)guidat

17、a(hObject, handles);picture=handles.picture; average_filter_5x5 = fspecial('average', 5 5);filter_5x5 = imfilter (picture, average_filter_5x5);axes(handles.axes2);imshow(filter_5x5);% - Executes on button press in zhifangtu.function pushbutton7_Callback(hObject, eventdata, handles)% hObject

18、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)guidata(hObject, handles);picture=handles.picture;C=rgb2gray(picture);r,c=size(C);axes(handles.axes2)imhist(C);% - Executes on button press in

19、 enhance.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)guidata(hObject, handles);picture=handles.picture;J=imadjust(pi

20、cture,0.4 0.6,0 1,1);axes(handles.axes2)imshow(J)% - 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 u

21、ser data (see GUIDATA)close% - Executes on button press in pushbutton15.function pushbutton15_Callback(hObject, eventdata, handles)% hObject handle to pushbutton15 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)guidata(hObject, handles);picture=handles.picture; O=rgb2gray(picture);E=histeq(O);axes(handles.axes2);imhist(E);% - Executes on button