can the input image shape be 28x28 for training or testing renet18? I read that input image shape should be multiples of 32x32 but is that really required or does present resnet18 take care by itself?
I trained the resnet18 on MNIST data set their shape is 28x28. But i did not face any problem while training or testing, even though the shape is not a multiple of 32x32. Is this okay or do i need to train the model again by resizing the image to 224x224?