How to turn a camera webcam into a video.

I want to get the value printed on video instead of webcam.

clear

camera = webcame; % Connect to the camera      

==> camera = VideoWriter('slow.avi')
nnet = alexnet;  % Load the neural net

while true   
    picture = camera.snapshot;              % Take a picture    
    picture = imresize(picture,[227,227]);  % Resize the picture

    label = classify(nnet, picture);        % Classify the picture
       
    image(picture);     % Show the picture
    title(int(label)); % Show the label
    drawnow;   
end

I've changed it, but it doesn't work. What should I change?

[Walter Roberson]

I do not understand what you are trying to do?

It looks like you have code designed for webcam . Are you trying to adapt the code to read from a video instead? Or are you trying to write the titled image out to video?

[bo hyeoun lee]

I want to make it possible to read the code by video instead of webcam.

Thank u

Answer 1

[Walter Roberson]

camera = VideoReader('slow.avi')
nnet = alexnet;  % Load the neural net

pic = image([]);
while hasFrame(camera)  
    picture = readFrame(camera);              % Take a picture    
    picture = imresize(picture,[227,227]);  % Resize the picture
    label = classify(nnet, picture);        % Classify the picture
    pic.CData = picture;     % Show the picture
    title(round(label)); % Show the label
    drawnow ratelimit;   
end

[bo hyeoun lee]

'hasFrame' is an unrecognized function or variable.

errror : webcam_object_classification (line 9)

while hasFrame(camera)

What's the problem?

And Thank you for your answer.

[Walter Roberson]

Which MATLAB release are you using?

[bo hyeoun lee]

I'm using the 2019 version.

[Walter Roberson]

I tested with the following code.

camera = VideoReader('rhinos.avi');
nnet = alexnet;  % Load the neural net
pic = image([]);
while hasFrame(camera)  
    picture = readFrame(camera);              % Take a picture    
    picture = imresize(picture,[227,227]);  % Resize the picture
    label = classify(nnet, picture);        % Classify the picture
    pic.CData = picture;     % Show the picture
    title(char(label)); % Show the label
    drawnow limitrate;   
end
delete(camera);

[bo hyeoun lee]

You are a genius.

It's working!!!!!

Thank you. I will study hard and be a good programmer!

٩(^ᴗ^)۶٩(^ᴗ^)۶

Answer 2

[bo hyeoun lee]

Or we're looking for a new code to match.