size of dataset

[function2-llx]

Hi, thank you for providing the FPUS23 dataset! When I'm working with the dataset, I can't reproduce the size of dataset, here's what I did:

1. Download and extract the dataset, and I've got 3 folders: Dataset, Dataset_Plane, saved_models.
2. I count the number of images under the folder Dataset and Dataset_Plane with the command: find <folder name> -name "*.png" | wc -l, which gives me 15113 and 5265, respectively.

However, according to the dataset description, there is supposed to be 15,728 images. Did I miss anything? Thank you for your help!