Create working avi video.

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baxbear
baxbear 2017-8-19
编辑： baxbear 2017-8-27
Always when I try to create an .avi video out of matrices I get the following error: Invalid video data - must be numeric or logical data type.
function [video] = CreateVideo(obj)
video = VideoWriter('test.avi');
video.FrameRate = 1;
open(video)
% loop 2d matrix sequence with ones and zeros and create video
for i_inc = 1 : size(obj.square_move_seq_, 3)
gray_img = double(obj.square_move_seq_(:, :, i_inc));
img = cat(3, gray_img, gray_img, gray_img);
writeVideo(video, img);
end
% Finalize the video file.
close(video);
end
Does somebody have a clue what I do wrong?
Thank you very much in advance.

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采纳的回答

Image Analyst
Image Analyst 2017-8-19
Try
writeVideo(video, uint8(img));
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Image Analyst
Image Analyst 2017-8-22
So, is it solved now? Or do you still have a problem?
baxbear
baxbear 2017-8-27
编辑：baxbear 2017-8-27
Yes, this particular problem is solved. I still have some problems with the visualisation but I will open a separate thread for it.
Thank you very much.

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