VideoWriter is only showing the last figure as opposed to full 135 image movie
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
james Brown
le 24 Juil 2018
Commenté : james Brown
le 24 Juil 2018
Here is my code:
myFolder = 'C:\Users\Authorised User\Documents\MATLAB\OilDropForceImages\OilDropForceImagesResized'; if ~isdir(myFolder) errorMessage = sprintf('Error: The following folder does not exist:\n%s', myFolder); uiwait(warndlg(errorMessage)); return; end
filePattern = fullfile(myFolder, '*.png');
pngFiles = dir(filePattern);
for k = 1:length(pngFiles)
baseFileName = pngFiles(k).name;
fullFileName = fullfile(myFolder, baseFileName);
fprintf(1, 'Now reading %s\n', fullFileName);
imageArray = imread(fullFileName);
imshow(imageArray, 'InitialMagnification', 77);
% Display image.
drawnow; % Force display to update immediately.
end
A = imageArray;
hold on
vid0bj = VideoWriter('OilDropForceMovie','MPEG-4');
open(vid0bj);
writeVideo(vid0bj,A)
hold off
close(vid0bj)
This code plots in MATLAB the full video I want to see which lasts roughly 20 seconds but when I convert it to windows media player it is only showing the final image. What am i doing wrong?
0 commentaires
Réponse acceptée
Giridharan Kumaravelu
le 24 Juil 2018
You are writing the video outside of the loop, that is why you are seeing only the last image. Move the writeVideo command inside the loop, you will find the full plot video getting saved.
Hope this helps!
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Startup and Shutdown dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!