Where can i get dataset?

[fihten]

Hi, i have some problems with running project. What do i must place in ./images and ./gt directories? Such images? And another question. What i must write here python main.py --image_size 256 --batch_size 8 --num_classes 2 --validation_split 0.2 --epochs 100 --image_path ./images --gt_path ./gt --layer_norm batch --model_save_path ./ --checkpoint_mode epochs if my images have size 512x512? What means these parameters? --image_size 256 --batch_size 8 --num_classes 2 --validation_split 0.2 --epochs 100