How to solve the error: 'Undefined function or variable 'aviread''

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Aparna Mohan 2019-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/461072-how-to-solve-the-error-undefined-function-or-variable-aviread

评论： Stephane Dauvillier 2019-5-9

I'm trying to run an old Matlab file which uses the function 'aviread'. I searched for the function in File Exchange but could not find it. I tried to use VideoReader instead of aviread. But it doesn't seem to have the the property 'cdata'.

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Answer 1

Stephane Dauvillier 2019-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/461072-how-to-solve-the-error-undefined-function-or-variable-aviread#answer_374237

Which version have you ?

aviread have been deprecated bfor releases before being removed completelly in the R2014b release. You have to use VideoReader function instead

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Aparna Mohan 2019-5-9

Matlab R2019a

Stephane Dauvillier 2019-5-9

then use VideoReader has I've mentionned

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Answer 2

Walter Roberson 2019-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/461072-how-to-solve-the-error-undefined-function-or-variable-aviread#answer_374238

You will need to downgrade your MATLAB to about r2012a to duplicate the functionality of aviread.

We suggest that you consider modifying the code to use VideoReader and readframe, or the computer vision toolbox VideoFileReader which is designed for effecient streaming of frames.