padding_vs_resizing_exp.txt

Nasnet mobile trained on images which where resized (preserving aspect ratio) and padded to 256x256 images, then randomly cropped to 224x224.

The Spearman's rank correlation coefficient (rho) was calculated on a validation set of
10.000 images.

Padded images, center cropped to 224x224
Rho: 0.6573

Padded images, scaled down to 224x224
Rho: 0.6514

This network was then finetuned (over 5 epochs, with decreasing learning rate) on the training set where the images were resized (no padding) to 256x256, then randomly cropped to 224x224.

Resized images, center cropped to 224x224:
Rho: 0.6442

Resized images, scaled down to 224x224
Rho: 0.6481