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In the paper ImageNet Classification with Deep Convolutional Neural Networks, the size of input image is 224x224. The following figure shows the input size.
From caffe, deploy.prototxt file from the directory of the bvlc_alexnet says that the input size is 227x227.
Why is the input size different?
I guess it has been a mistake. Take a look at here.
The other author's were Ilya Sutskever and Geoffrey Hinton. So, AlexNet input starts with 227 by 227 by 3 images. And if you read the paper, the paper refers to 224 by 224 by 3 images. But if you look at the numbers, I think that the numbers make sense only of actually 227 by 227.
