Hi., I have a problem for my project i want convert videoreader to webcam How can i do that? thanks., this is example code:

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Allan III T. Condiman
clc;clear all;close all;
% Add the Heatmaps folder and all its subfolders to the search path.
addpath(genpath('D:\Dropbox\MATLAB\Heatmaps'));
addpath(genpath('D:\Dropbox\MATLAB\Set of Rules method'));
addpath(genpath('D:\Dropbox\MATLAB\Video Tools'));
addpath(genpath('D:\Dropbox\MATLAB\Main'));
VideoObject_humans=VideoReader('atrium.mp4'); %Read a video
nFrames_humans=VideoObject_humans.NumberOfFrames; %read VideoObject_humans number of frames
dimensions1=VideoObject_humans.Height*VideoObject_humans.Width; %Get the 1st video's dimensions
warning('off','all') %Disable the warnings
%%
% Loop to get the background
for k=1:5 %For the first 5 frames
thisframe=read(VideoObject_humans,k); %Read current frame
bgimage(:,:,:,k)=thisframe; %Write current frame to dynamically changing 4D array
end
%% Loop for video frames
for k=25:(nFrames_humans-1) %For all the frames
img=read(VideoObject_humans,k); %Read the current frame
closedBW=extract_silhouette_bg_sub(bgimage(:,:,:,1),bgimage(:,:,:,2),bgimage(:,:,:,3),bgimage(:,:,:,4),img);
% % extract also the perimeter for showing
% perim=extract_perim_bg_sub(bgimage(:,:,:,1),bgimage(:,:,:,2),bgimage(:,:,:,3),bgimage(:,:,:,4),img);
binaryImage = bwareafilt(closedBW, 3); %extract the biggest object from the binary image
mask = imfill(binaryImage, 'holes'); %fill holes in the binary image
maskedImage = bsxfun(@times, img, cast(mask, 'like', img)); % Mask the original image
maskedImage=uint8(maskedImage);
% %display the image
h=imshow(maskedImage);
%performance improvements
set(h,'EraseMode','none')
drawnow
set(gcf,'doublebuffer','off');
%%display 4 images together
% subplot(2,2,1);
% imshow(img);
% drawnow
% subplot(2,2,2);
% imshow(closedBW);
% drawnow
% subplot(2,2,3);
% imshow(perim);
% drawnow
% subplot(2,2,4);
% imshow(maskedImage);
% drawnow
%
% uncomment to write images to files
% outputBaseFileName = sprintf('%3.3d.jpg', k);
% imwrite(maskedImage, outputBaseFileName, 'jpg');
end

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