making video from large number of images

Question

talayeh ghodsi 2020-12-29

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/704327-making-video-from-large-number-of-images

回答： KALYAN ACHARJYA 2020-12-29

hi every body.

I have 368 images in a folder. i nead to make a video from them. i hav find a mathlab code by search, but i have an error in line 19, (frame = im2frame(pic{u})). and also i dont know how can i fix "secsPerImage" in line 13 for all 368 images equal to 2 seconds per image.

could anyone help me please?

surf_read_dir='E:\phd\shadi gholipoor\shadi gholipoor jpg\Series_10448_70.0%\';
files=dir('E:\phd\shadi gholipoor\shadi gholipoor jpg\Series_10448_70.0%\*.jpg');
 for im=1:size(files)
    fdir = strcat(surf_read_dir , files(im).name);
    slice_im = load(fdir);
    pic = imread(fdir);
 end
 writerObj = VideoWriter('myVideo.avi');
 writerObj.FrameRate = 1;
 % set the seconds per image
%  secsPerImage = [5 10 15];
 % open the video writer
 open(writerObj);
 % write the frames to the video
 for u=1:length(pic)
     % convert the image to a frame
     frame = im2frame(pic{u});
     for v=1:secsPerImage(u) 
         writeVideo(writerObj, frame);
     end
 end
 % close the writer object
 close(writerObj);

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Answer 1

KALYAN ACHARJYA 2020-12-29

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/704327-making-video-from-large-number-of-images#answer_586202

在 MATLAB Online 中打开

One error I have need notiching that, at the initial loop, you consider "pic" as single variable. However, in the 2nd loop, it is called as as cell array, it might be-

for im=1:size(files)
    .....
    pic{im}= imread(fdir);
end

A lot of similar question answers are available in MATLAB Answers (call sequence of images), and the later part converts them into frames using the im2frame function.