Video Capturing (MATLAB) with GUI

Video Capturing (MATLAB) with GUI

11:46

Description

This MATLAB code with figure has following 3 functionalities:

          1.     Records a 10 seconds video

          2.     Play the recorded video

          3.     Get a number of second as input and returns the frame present at that

                number of second in the video

MATLAB Code

function varargout = captureVideo(varargin)

gui_Singleton = 1;

gui_State = struct('gui_Name',       mfilename, ...

                   'gui_Singleton',  gui_Singleton, ...

                   'gui_OpeningFcn', @captureVideo_OpeningFcn, ...

                   'gui_OutputFcn',  @captureVideo_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

function captureVideo_OpeningFcn(hObject, eventdata, handles, varargin)

handles.output = hObject;

guidata(hObject, handles);

function varargout = captureVideo_OutputFcn(hObject, eventdata, handles)

varargout{1} = handles.output;

function Record_Callback(hObject, eventdata, handles)

axes(handles.Preview);

cam=webcam;

aviObj = avifile('myVideo.avi');   % Create a new AVI file

for i = 1:150                    % Capture 150 frames

 

  I=snapshot(cam);

  imshow(I);

  F = im2frame(I);                    % Convert I to a movie frame

  aviObj = addframe(aviObj,F);  % Add the frame to the AVI file

 

end

aviObj = close(aviObj);

clear('cam');

function PlayButton_Callback(hObject, eventdata, handles)

axes(handles.Play);

Video=VideoReader('myVideo.avi');

for  i= 1:150 

    frame=read(Video,i);

    imshow(frame);

    pause(0.05);

end

function GetFrame_Callback(hObject, eventdata, handles)

axes(handles.Frame);

Video=VideoReader('myVideo.avi');

Show = {'Enter the second of which You want the frame'};

Title = 'Input Second(an integer)';

Lines = 1;

input = inputdlg(Show,Title,Lines);

second=str2double(input);

frame_rate=Video.FrameRate;

frame_no=second*frame_rate;

frame=read(Video,frame_no);

imshow(frame);