ValueError: Error when checking target: expected (keras Sequence model layer) to have n dimensions, but got array with shape

Question

I have loaded images to train my model on recognizing one feature in those images.

Xtrain is a numpy ndarray of shape (1380,200,200,3 ) containing 1380 images sized 200 by 200pixels in RGB format
Ytrain has targets. shape (1380,2)

When I train my model (model.fit(Xtrain,Ytrain)) I seem to get a value error on everyone of the layers. As if the input was both Xtrain then Ytrain...

ValueError: Error when checking target: expected batch_normalization_24 to have 4 dimensions, but got array with shape (1380, 2)

Image:

error message

aminrd · Accepted Answer · 2019-12-19 20:57:43Z

2

The shape of Keras's batch normalizer layer's output is the same as its input. Since you have only two labels, your final layer in a Sequential model should generate two outputs. You can consider adding a Dense layer like:

model.add(Dense(2), activation='relu')

I also recommend to check your model's architecture using print(model.summary()) and make sure that inputs and outputs match with your dataset and vice versa.

answered Dec 19, 2019 at 20:57

aminrd

5,2605 gold badges34 silver badges50 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

ValueError: Error when checking target: expected (keras Sequence model layer) to have n dimensions, but got array with shape

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related