Unit 7, Quiz 7.2 part 5

[gracecluvohio]

Is the answer not 113? The padding should be multiplied by 2 according to the slides so [(224-3+2*2)/2] + 1 = 113

[rasbt]

You are absolutely right. Thanks for raising that. Just updated it.

We can also double check it via

from torch.nn import Conv2d
import torch

conv2d = Conv2d(1, 1, kernel_size=3, stride=2, padding=2)

img = torch.rand(1, 224, 224)
conv2d(img).size()