Problem with a conversion into avi file

Question

Ren 2014-8-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/151648-problem-with-a-conversion-into-avi-file

评论： Ben11 2014-8-20

Hi,I want to convert a stored images to avi file but when i run my code i get this error: Frames of type double must be in the range 0 to 1. Can anyone help me to solve the problem? Thanks in advance.

writerObj = VideoWriter('Uncompressed AVI.avi'); writerObj.FrameRate = 10;

open(writerObj);

[m n number]=size(sub_movie); %the images are stored in sub_movie for k = 1:number frame = sub_movie(:,:,k); writeVideo(writerObj,frame); end close(writerObj);

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Answer 1

Ben11 2014-8-20

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https://ww2.mathworks.cn/matlabcentral/answers/151648-problem-with-a-conversion-into-avi-file#answer_149226

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You just need to convert sub_movie(:,:,k) to a double before exporting. For example:

for k = 1:number 
writeVideo(writerObj,double(sub_movie(:,:,k))/65536); % store as 16-bit data (2^16 = 65536).
end 
close(writerObj);

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Ren 2014-8-20

Thanks for the clarification.

Ben11 2014-8-20

You're welcome! Please mark the answer as accepted if it solved the problem. Note that you can also export the data in 8-bit, dividing by 255 instead of 65 536.

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