How to create jpg file from .mat for making video( AVI.fomat)

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Tossawon Ngamnet 2018-5-21

0
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https://ww2.mathworks.cn/matlabcentral/answers/401728-how-to-create-jpg-file-from-mat-for-making-video-avi-fomat

评论： KSSV 2018-5-22

I have 2000 .mat file(524*424 matrix for each .mat). Now i want to create each .mat to jpeg file to build AVI video. Could anyone guide me to do this? (i used matlab 2017 )

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Answer 1

KSSV 2018-5-21

2
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https://ww2.mathworks.cn/matlabcentral/answers/401728-how-to-create-jpg-file-from-mat-for-making-video-avi-fomat#answer_321133

在 MATLAB Online 中打开

files = dir('*.mat') ;
N = length(files) ;
% create the video writer with 1 fps
writerObj = VideoWriter('myVideo.avi');
writerObj.FrameRate = 10;
% open the video writer
open(writerObj);
for i = 1:N
    S = load(files(i).name) ;
    A = S.A ;   % let A be the data stored in .mat file 
    imshow(A)     
    drawnow
% write the frames to the video
    F = getframe(gcf) ;
  writeVideo(writerObj, F);
end
% close the writer object
close(writerObj);
fprintf('Sucessfully generated the video\n')