MATLAB图像处理专栏--阈值分割算法

function varargout = yuzhifenge(varargin) % CHENGPIN6 MATLAB code for chengpin6.fig % CHENGPIN6, by itself, creates a new CHENGPIN6 or raises the existing % singleton*. % % H = CHENGPIN6 returns the handle to a new CHENGPIN6 or the handle to % the existing singleton*. % % CHENGPIN6('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in CHENGPIN6.M with the given input arguments. % % CHENGPIN6('Property','Value',...) creates a new CHENGPIN6 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before chengpin6_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to chengpin6_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 chengpin6 % Last Modified by GUIDE v2.5 16-Mar-2020 14:46:02 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @chengpin6_OpeningFcn, ... 'gui_OutputFcn', @chengpin6_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 chengpin6 is made visible. function chengpin6_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 chengpin6 (see VARARGIN) % Choose default command line output for chengpin6 handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes chengpin6 wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = chengpin6_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 anniu_drtp_Callback(hObject, eventdata, handles) %%导入图片进axse1 [drtp,path] = uigetfile('*.jpg;*.png'); if isequal(drtp,0)| isequal(drtp,0) errordlg('没有选中文件','出错'); return; else axes(handles.axes1); %吧导入的图片放进axes1 disp(imshow(drtp)); %显示导入的图片 end % --- Executes on button press in anniu_bctp. function anniu_bctp_Callback(hObject, eventdata, handles) %保存图片 [bctp,path] = uiputfile('*.jpg'); if isequal(bctp,0); disp('User selected Cancel'); %用户选择取消 else t=getimage(handles.axes2); %吧axes2里的图给t imwrite(t,bctp,'jpg'); %保存t end % 灰度图像 function anniu_hdtx_Callback(hObject, eventdata, handles) hd=getimage(handles.axes1); Data=rgb2gray(hd); axes(handles.axes2); disp(imshow(Data)); %二值图像 function anniu_eztx_Callback(hObject, eventdata, handles) ez=getimage(handles.axes1); Data=im2bw(ez); axes(handles.axes2); disp(imshow(Data)) ; %局部阈值分割 function anniu_jbyzfg_Callback(hObject, eventdata, handles) jbyz=getimage(handles.axes1); c=rgb2gray(jbyz); b=im2double(c); se=strel('disk',50); %se.Neighborhood:50*50圆盘 ft=imtophat(b,se); %高帽变换 gt=uint8(255*ft); th=graythresh(ft); g=imbinarize(gt,th); %阈值分割 axes(handles.axes2); disp(imshow(g)) ; %全局Otus阈值分割 function anniu_qjyz_Otus_Callback(hObject, eventdata, handles) qjyz_Otus=getimage(handles.axes1); a=rgb2gray(qjyz_Otus); t3=graythresh(a); bw2=imbinarize(a,t3); axes(handles.axes2); disp(imshow(bw2)) ; function anniu_tc_Callback(hObject, eventdata, handles) close(gcf) chengpin3