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Augmented image data store wont work unless i write Augmented image Source, is this stopping me from making a data store?

3 Ansichten (letzte 30 Tage)
Compile errors says:
Error using trainingOptions (line 187)
The value of 'ValidationData' is invalid. Validation data must be a table, an ImageDatastore, or a cell
array with input data and responses.

Antworten (2)

Walter Roberson
Walter Roberson am 11 Apr. 2018
augmented image data store was not introduced until R2018a.
  2 Kommentare
Nathan Reilly
Nathan Reilly am 11 Apr. 2018
I know so everyone says use AugmentedImageSource but when i try to train with my data it says it must be from a data store which my matlab doesnt have. So i have tried using imresize for example: inputSize = [227 227 3]; imds.ReadFcn = @(loc)imresize(imread(loc),[inputSize]); Plus many combinations of this code and more. Still wont work compile error says all images must be the same size. Or it says target images are 227 227 1 but need to be 227 227 3 for alexnet, so i need to use 4Darray but cant get that to work either...
Walter Roberson
Walter Roberson am 11 Apr. 2018
The input images must be RGB for alexnet. You can construct RGB images from grayscale images as
imds.ReadFcn = @(loc) repmat(imresize(imread(loc),[inputSize]),[1 1 3]);

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Helen Victoria
Helen Victoria am 14 Dez. 2018
Error using trainingOptions (line 262)
The value of 'ValidationData' is invalid. MiniBatchable Datastore has no responses.
Error in cifarpretrained (line 24)
options = trainingOptions('sgdm', . Am getting this error while training on alexnet using transfer.I am using 2018b version

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