人工智能-matlab-基于MATLAB的数字图像处理演示系统

function varargout = Signal_Display(varargin) % SIGNAL_DISPLAY MATLAB code for Signal_Display.fig % SIGNAL_DISPLAY, by itself, creates a new SIGNAL_DISPLAY or raises the existing % singleton*. % % H = SIGNAL_DISPLAY returns the handle to a new SIGNAL_DISPLAY or the handle to % the existing singleton*. % % SIGNAL_DISPLAY('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in SIGNAL_DISPLAY.M with the given input arguments. % % SIGNAL_DISPLAY('Property','Value',...) creates a new SIGNAL_DISPLAY or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before Signal_Display_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to Signal_Display_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 Signal_Display % Last Modified by GUIDE v2.5 19-Oct-2018 20:12:50 % Begin initialization codeglobal grid_enable = 1; - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @Signal_Display_OpeningFcn, ... 'gui_OutputFcn', @Signal_Display_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 Signal_Display is made visible. function Signal_Display_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 Signal_Display (see VARARGIN) % Choose default command line output for Signal_Display handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes Signal_Display wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = Signal_Display_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 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) plot_sty=get(handles.popupmenu1,'value');%信号类型 A=str2num(get(handles.edit1,'String')); w=str2num(get(handles.edit2,'String')); p=str2num(get(handles.edit3,'String')); color_num=get(handles.popupmenu2,'value');%获取信号图像颜色 line_type_num=get(handles.popupmenu3,'value');%获取信号图像线型 vertex_ticks_num=get(handles.popupmenu4,'value');%获取信号图像顶点标记 color = ['k','b','g','r','c','m','y','w'];%颜色存储 line_type = ['-',':','-.','--'];%线型存储 vertex_ticks = [' ','.','o','x','+','*','s','d','v','^','<','>','p','h'];%顶点标记存储 signal_type= [color(color_num),line_type(line_type_num),vertex_ticks(vertex_ticks_num)]; clv = join(signal_type);%数组合成plot函数参数 t_min = str2num(get(handles.edit4,'String'));%t取值上下限 t_max = str2num(get(handles.edit5,'String'));% x_min = str2num(get(handles.edit6,'String'));%X轴取值范围上下限 x_max = str2num(get(handles.edit7,'String'));% y_min = str2num(get(handles.edit8,'String'));%Y轴取值范围上下限 y_max = str2num(get(handles.edit9,'String'));% t = t_min:0.01:t_max; index_num = str2num(get(handles.edit10,'String'));%指数值 gate_width = str2num(get(handles.edit11,'String'));%门函数宽度 line_width = str2num(get(handles.edit12,'String'));%图像线宽 sawtooth_wave_T = str2num(get(handles.edit13,'String'));%锯齿波函数周期 global grid_enable;%显示网格使能标志位 switch(plot_sty) case 1%正弦信号 y=A*sin(w*t+p); plot(t,y,clv ,'linewidth',line_width); title('sin'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 2%余弦信号 y=A*cos(w*t+p); plot(t,y,clv ,'linewidth',line_width); title('cos'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 3%指数函数 y=exp(index_num*t); plot(t,y,clv,'linewidth',line_width); title('指数函数图像') if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 4%门函数 f=rectpuls(t,gate_width); plot(t,f,clv,'linewidth',line_width); title('门函数的波形'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 5%锯齿波函数 f=sawtooth(2*pi/sawtooth_wave_T*t,0); plot(t,f,clv,'linewidth',line_width); title('锯齿波函数的波形'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 6%抽样函数 t1=t/pi; f=sinc(t1); plot(t,f,clv,'linewidth',line_width); title('抽样信号'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); line([x_min,x_max],[0,0],'color','k'); case 7%阶跃函数 f = stepfun(t,0); plot(t,f,clv,'linewidth',line_width); title('阶跃信号'); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); case 8%指数衰减的正弦信号 f=2*exp(index_num*t).*sin(w*t+p); plot(t,f,clv,'linewidth',line_width); title('指数衰减的正弦信号'); if(grid_enable == 1) grid on; else grid off; end f2=2*exp(index_num*t);%包络线函数 f3=-2*exp(index_num*t); signal_type= [color(color_num),line_type(2),vertex_ticks(vertex_ticks_num)];%保证包络线为虚线 clv = join(signal_type);%包络线 数组合成plot函数参数 hold on; plot(t,f2,clv,'linewidth',line_width); hold on; plot(t,f3,clv,'linewidth',line_width); hold off;%保证继续绘制其他图像 axis([x_min,x_max,-A+y_min,A+y_max]); case 9%正弦序列 t = t_min:0.1:t_max; f=A*sin(w*t); stem(t,f,color(color_num),'linewidth',line_width); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); title('正弦序列'); line([x_min,x_max],[0,0],'color','k');%绘制横坐标 case 10%余弦序列 t = t_min:0.1:t_max; f=A*cos(w*t); stem(t,f,color(color_num),'linewidth',line_width); if(grid_enable == 1) grid on; else grid off; end axis([x_min,x_max,-A+y_min,A+y_max]); title('余弦序列'); line([x_min,x_max],[0,0],'color','k');%绘制横坐标 case 11%指数序列 t = t_min:0.2:t_max; f=exp(i