import logging import os import numpy as np from PIL import Image from torch.utils.data import Dataset class SphereDataset(Dataset): def __init__(self, image_dir, transform=None): self.image_dir = image_dir self.transform = transform self.images = os.listdir(image_dir) def __len__(self): return len(self.images) def __getitem__(self, index): img_path = os.path.join(self.image_dir, self.images[index]) image = np.array(Image.open(img_path).convert("RGB"), dtype=np.uint8) mask = np.zeros((image.shape[0], image.shape[1]), dtype=np.uint8) if self.transform is not None: augmentations = self.transform(image=image, mask=mask) image = augmentations["image"] mask = augmentations["mask"].float() return image, mask