Downsample and Upsample videos in matlab
11 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am working with videos in matlab and the code is taking so much time to give me results, that's why i thought downsampling and upsmaling the video could be the best solution, can anyone help me with that.
1 commentaire
Réponses (2)
KSSV
le 16 Juil 2022
10 commentaires
Image Analyst
le 18 Juil 2022
When using VideoWriter, it creates a new file. So all you need to do is to make sure the folder exists:
You can't append c:\resize onto your current folder because then you'd have two drive letters and two colons in the filename. Just leave off the colon off
outputFullFileName = fullfile(pwd, 'C:\resize\NewRhinos.avi')
to see.
>> fullfile(pwd, 'C:\resize\NewRhinos.avi')
ans =
'C:\Users\alabaccar\Documents\MATLAB\work\Tests\C:\resize\NewRhinos.avi'
See - that's not a proper filename.
So do this:
% Create a VideoWriter object to write the video out to a new, different file.
outputFolder = 'C:\resize';
outputFullFileName = fullfile(outputFolder, 'NewRhinos.avi');
fprintf('Creating new output file : "%s".\n', outputFullFileName)
outputVideoWriterObject = VideoWriter(outputFullFileName);
Image Analyst
le 16 Juil 2022
I already have a demo for resizing a video. See attached.
1 commentaire
Image Analyst
le 16 Juil 2022
If you say that it takes too long, how long does it take and what is the maximum time you will allow? Perhaps you can use parfor and the Parallel Processing Toolbox, and a faster computer, to speed it up.
Voir également
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!