How to solve the error Undefined function or variable 'augmented​ImageDatas​tore'?

Hi, I found this error when trying to resize the images in my program that use Alexnet how can I solve it?

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/nnet/ref/augmentedimagedatastore.html was new in R2017b, whereas alexnet was new in R2017a. If you are using R2017a you would not have augmentedImageDatastore

[leyue wang]

I am using R2017b while I have the same problem using augmentedImageDatastore

[Dikshant Bisht]

I'm also having same problem using augmentedImageDatastore, when looking into add-on explorer it is showing installed but still i can't use it

[Shamim]

try 'augmentedImageSource()' instead of 'augmentedImageDatastore()'

[Upeka Somaratne]

'augmentedImageSource()' works but matlab (R2017b)is crashing..

Answer 2

[Marcelo Dietrich]

I'm having the same problem... Any suggestions on how to solve it?

Answer 3

[Dnon Dnon]

I'm having same problem. I'm using Matlab 2017b

Answer 4

[Stu]

Any solution for this please?I'm using R2017a

Answer 5

[Sachin Dalvi]

I am getting the same error. I am using matlab 2017b and when I try to resize images as:

newImds = augmentedImageDatastore(outputSize,imds);

I get error as: Undefined function or variable 'augmentedImageDatastore'.

Could somebody please help with any solution on how to solve this ?

Answer 6

[Stu]

I installed R2018a and augmentedImageDatastore function worked. I think this function was introduced only in R2018a as it says in the last line of the documentation page. https://www.mathworks.com/help/nnet/ref/augmentedimagedatastore.html

[mingwei wen]

So what should i do?update the matlab？

[Walter Roberson]

mingwei wen: if you are using before R2018a you should probably upgrade. There is a way to construct an image data store in a couple of releases before that, by constructing a data store and setting the options to make it an image data store, but in those older releases not many functions supported those kinds of data stores.