How is feature extraction done from by using pre-activations last CNN layer in VGG-19

vision
1

I am trying to extract features using the pre-activations of last CNN layer in VGG-19.Is it just extracting features before the ReLU layer or do I have to make any changes in the CNN model…?

2

You could use forward hooks to get the activations without changing the model as described here.

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Thank you…It worked out…