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

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