基于MATLAB的数字验证码识别系统（源码）.zip

function varargout = MainForm(varargin) % MAINFORM MATLAB code for MainForm.fig % MAINFORM, by itself, creates a new MAINFORM or raises the existing % singleton*. % % H = MAINFORM returns the handle to a new MAINFORM or the handle to % the existing singleton*. % % MAINFORM('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in MAINFORM.M with the given input arguments. % % MAINFORM('Property','Value',...) creates a new MAINFORM or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before MainForm_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to MainForm_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 MainForm % Last Modified by GUIDE v2.5 16-May-2009 17:07:32 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @MainForm_OpeningFcn, ... 'gui_OutputFcn', @MainForm_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 MainForm is made visible. function MainForm_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 MainForm (see VARARGIN) % Choose default command line output for MainForm handles.output = hObject; clc; set(handles.axes1, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes2, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes3, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes4, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes5, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes6, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes7, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes8, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); handles.fileurl = 0; handles.Img = 0; handles.Imgbw = 0; handles.Ti = 0; % Update handles structure guidata(hObject, handles); % UIWAIT makes MainForm wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = MainForm_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 varargout = pushbutton1_CreateFcn(hObject, eventdata, handles) % --- 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) % 载入图像 file = fullfile(pwd, 'test/下载.jpg'); [Filename, Pathname] = uigetfile({'*.jpg;*.tif;*.png;*.gif','All Image Files';... '*.*','All Files' }, '载入验证码图像',... file); if isequal(Filename, 0) || isequal(Pathname, 0) return; end % 显示图像 axes(handles.axes1); cla reset; axes(handles.axes2); cla reset; set(handles.axes1, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.axes2, 'Box', 'on', 'Color', 'c', 'XTickLabel', '', 'YTickLabel', ''); set(handles.text4, 'String', ''); % 存储 fileurl = fullfile(Pathname,Filename); Img = imread(fileurl); imshow(Img, [], 'Parent', handles.axes1); set(handles.text2, 'String', '验证码图像'); handles.fileurl = fileurl; handles.Img = Img; guidata(hObject, handles); % --- 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) if isequal(handles.Img, 0) return; end Img = handles.Img; % 颜色空间转换 hsv = rgb2hsv(Img); h = hsv(:, :, 1); s = hsv(:, :, 2); v = hsv(:, :, 3); % 定位噪音点 bw1 = h > 0.16 & h < 0.30; bw2 = s > 0.65 & s < 0.80; bw = bw1 & bw2; % 过滤噪音点 Imgr = Img(:, :, 1); Imgg = Img(:, :, 2); Imgb = Img(:, :, 3); Imgr(bw) = 255; Imgg(bw) = 255; Imgb(bw) = 255; % 去噪结果 Imgbw = cat(3, Imgr, Imgg, Imgb); imshow(Imgbw, [], 'Parent', handles.axes2); set(handles.text3, 'String', '验证码图像去噪'); handles.Imgbw = Imgbw; guidata(hObject, handles); % --- 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) if isequal(handles.Imgbw, 0) return; end Imgbw = handles.Imgbw; % 灰度化 Ig = rgb2gray(Imgbw); % 二值化 Ibw = im2bw(Ig, 0.8); % 常量参数 sz = size(Ibw); cs = sum(Ibw, 1); mincs = min(cs); maxcs = max(cs); masksize = 16; % 初始化 S1 = []; E1 = []; % 1对应开始，2对应结束 flag = 1; s1 = 1; tol = maxcs; while s1 < sz(2) for i = s1 : sz(2) % 移动游标 s2 = i; if cs(s2) < tol && flag == 1 % 达到起始位置 flag = 2; S1 = [S1 s2-1]; break; elseif cs(s2) >= tol && flag == 2 % 达到结束位置 flag = 1; E1 = [E1 s2]; break; end end s1 = s2 + 1; end % 图像反色 Ibw = ~Ibw; % 图像细化 Ibw = bwmorph(Ibw, 'thin', inf); for i = 1 : length(S1) % 图像裁剪 Ibwi = Ibw(:, S1(i):E1(i)); % 面积滤波 [L, num] = bwlabel(Ibwi); stats = regionprops(L); Ar = cat(1, stats.Area); [maxAr, ind_maxAr] = max(Ar); recti = stats(ind_maxAr).BoundingBox; recti(1) = recti(1) + S1(i) - 1; recti(2) = recti(2); recti(3) = recti(3); recti(4) = recti(4); Rect{i} = recti; % 图像裁剪 Ibwi = imcrop(Ibw, recti); rate = masksize/max(size(Ibwi)); Ibwi = imresize(Ibwi, rate, 'bilinear'); ti = zeros(masksize, masksize); rsti = round((size(ti, 1)-size(Ibwi, 1))/2); csti = round((size(ti, 2)-size(Ibwi, 2))/2); ti(rsti+1:rsti+size(Ibwi,1), csti+1:csti+size(Ibwi,2))=Ibwi; % 存储 Ti{i} = ti; end imshow(Ibw, [], 'Parent', handles.axes2); hold on; for i = 1 : length(Rect) rectangle('Position', Rect{i}, 'EdgeColor', 'r', 'LineWidth', 2); end hold off; set(handles.text3, 'String', '验证码数字定位'); handles.Ti = Ti; guidata(hObject, handles); % --- Executes on button press in pushbutton4. function pushbutton4_Callback(hObject, eventdata, handles) % hObject handle to pushbutton4 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) if isequal(handles.Ti, 0) return; end % 加入红色边框 Ti = handles.Ti; It = []; spcr = ones(size(Ti{1}, 1), 3)*255; spcg = ones(size(Ti{1}, 1), 3)*0; spcb = ones(size(Ti{1}, 1), 3)*0; spc = cat(3, spcr, spcg, spcb); % 整合到一起 It = [It spc]; for i = 1 : length(