一、数字图像处理简介
图像处理基础教程链接 1 【基础教程】基于matlab图像处理（表示方法+数据结构+基本格式+类型转换+读取+点运算+代数运算）【含Matlab源码 834期】 2 【基础教程】基于matlab图像处理（读写+显示+运算+转换+变换+增强+滤波+分析+统计）【含Matlab源码 144期】 3 【基础教程】基于matlab图像增强+复原+分割【含Matlab源码 056期】
二、部分源代码
function varargout = flash_card(varargin)
% FLASH_CARD MATLAB code for flash_card.fig
% FLASH_CARD, by itself, creates a new FLASH_CARD or raises the existing
% singleton*.
%
% H = FLASH_CARD returns the handle to a new FLASH_CARD or the handle to
% the existing singleton*.
%
% FLASH_CARD('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in FLASH_CARD.M with the given input arguments.
%
% FLASH_CARD('Property','Value',...) creates a new FLASH_CARD or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before flash_card_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to flash_card_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 flash_card
% Last Modified by GUIDE v2.5 09-Mar-2021 14:00:14
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @flash_card_OpeningFcn, ...
'gui_OutputFcn', @flash_card_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 flash_card is made visible.
function flash_card_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 flash_card (see VARARGIN)
% Choose default command line output for flash_card
handles.output = hObject;
set(handles.hard_prob,'UserData',str2double(get(handles.hard_prob,'string')))
set(handles.medium_prob,'UserData',str2double(get(handles.medium_prob,'string')))
set(handles.easy_prob,'UserData',str2double(get(handles.easy_prob,'string')))
handles.probs=[];
handles.names=[];
handles.D=[];
handles.current_card=[];
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes flash_card wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = flash_card_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_1_Callback(hObject, eventdata, handles)
% hObject handle to file_1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
%
function gen_flash_card_file(d)
if d==0
msgbox('Please select a valid folder');
return;
end
dout=dir(d);
fname=sprintf('%s/flash_card.txt',d);
if exist(fname,'file')
qans=questdlg(sprintf('A list file %s already exists, overwrite?',fname));
if ~strcmp(qans,'Yes')
return;
end
else
qans=questdlg(sprintf('List file %s doesn''t exist, create?',fname));
if ~strcmp(qans,'Yes')
return;
end
end
fout=fopen(fname,'w');
for fid=1:length(dout)
fname=dout(fid).name;
if dout(fid).isdir; continue; end; % skip directories
fprintf(fout,'%s;%s;1\n',fname,strip(fname));
end
fclose(fout);
msgbox(sprintf('List file flash_card.txt created under %s',d));
%
function fname=strip(fname)
fname=strrep(fname,'_',' ');
ids=findstr(fname,'.');
if ~isempty(ids)
fname=fname(1:ids(1)-1);
end
% --------------------------------------------------------------------
function exit_1_Callback(hObject, eventdata, handles)
% hObject handle to exit_1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
close(handles.figure1);
% --------------------------------------------------------------------
function tool_2_Callback(hObject, eventdata, handles)
% hObject handle to tool_2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --------------------------------------------------------------------
function generate_3_Callback(hObject, eventdata, handles)
% hObject handle to generate_3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
popupmessage('flash_card_help.txt','Flash Card Help');
% --------------------------------------------------------------------
function load_1_Callback(hObject, eventdata, handles)
% hObject handle to load_1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
d=uigetdir;
if d==0
msgbox('Please select a valid folder');
disable_buttons(handles);
disable_menus(handles);
return;
end
enable_menus(handles);
save_probs(hObject, handles); % save previous probabilities
if ~exist(sprintf('%s/flash_card.txt',d),'file')
gen_flash_card_file(d);
end
[names,probs]=load_data(d);
if isempty(names)
disable_buttons(handles);
disable_menus(handles);
else
enable_buttons(handles);
enable_menus(handles);
end
handles.names=names;
handles.probs=probs;
handles.D=d;
guidata(hObject, handles);
get_next_card(hObject,handles);
function disable_menus(handles)
set(handles.Untitled_2,'enable','off');
set(handles.Untitled_3,'enable','off');
function enable_menus(handles)
set(handles.Untitled_2,'enable','on');
set(handles.Untitled_3,'enable','on');
function disable_buttons(handles)
set(handles.pushbutton1,'enable','off');
set(handles.pushbutton2,'enable','off');
set(handles.pushbutton3,'enable','off');
set(handles.pushbutton4,'enable','off');
function enable_buttons(handles)
set(handles.pushbutton1,'enable','off');
set(handles.pushbutton2,'enable','off');
set(handles.pushbutton3,'enable','off');
set(handles.pushbutton4,'enable','on');
%
function [names,probs]=load_data(d)
names=[]; probs=[];
fname=sprintf('%s/flash_card.txt',d);
fin=fopen(fname,'r');
if fin <0;
msgbox(sprintf('Cannot open list file %s',fname));
return;
end
did=1;
disable_ui;
try
while 1
tline=fgetl(fin);
if ~ischar(tline); break; end;
sids=strfind(tline,';');
names(did).fname=tline(1:sids(1)-1);
names(did).pname=tline(sids(1)+1:sids(2)-1);
probs(did)=str2double(tline(sids(2)+1:end));
did=did+1;
end
catch
msgbox('flash_card.txt is corrupted. Please regenerate list file from Tool Menu');
fclose(fin);
return;
end
复制代码三、运行结果
四、matlab版本及参考文献
1 matlab版本 2014a
2 参考文献 [1] 蔡利梅.MATLAB图像处理——理论、算法与实例分析[M].清华大学出版社，2020. [2]杨丹,赵海滨,龙哲.MATLAB图像处理实例详解[M].清华大学出版社，2013. [3]周品.MATLAB图像处理与图形用户界面设计[M].清华大学出版社，2013. [4]刘成龙.精通MATLAB图像处理[M].清华大学出版社，2015. [5]陈浩,方勇,朱大洲,王成,陈子龙.基于蚁群算法的玉米植株热红外图像边缘检测[J].农机化研究. 2015,37(06)