Efficient Image Augmentation in Hugging Face Datasets

### Describe the bug

I'm using the Hugging Face datasets library to load images in batch and would like to apply a torchvision transform to solve the inconsistent image sizes in the dataset and apply some on the fly image augmentation. I can just think about using the collate_fn, but seems quite inefficient.

I'm new to the Hugging Face datasets library, I didn't find nothing in the documentation or the issues here on github.

Is there an existing way to add image transformations directly to the dataset loading pipeline?

### Steps to reproduce the bug

from datasets import load_dataset
from torch.utils.data import DataLoader

```python
def collate_fn(batch):
images = [item['image'] for item in batch]
texts = [item['text'] for item in batch]
return {
'images': images,
'texts': texts
}

dataset = load_dataset("Yuki20/pokemon_caption", split="train")
dataloader = DataLoader(dataset, batch_size=4, collate_fn=collate_fn)

# Output shows varying image sizes:
# [(1280, 1280), (431, 431), (789, 789), (769, 769)]
```

### Expected behavior

I'm looking for a way to resize images on-the-fly when loading the dataset, similar to PyTorch's Dataset.__getitem__ functionality. This would be more efficient than handling resizing in the collate_fn.

### Environment info

- `datasets` version: 3.1.0
- Platform: Linux-6.5.0-41-generic-x86_64-with-glibc2.35
- Python version: 3.11.10
- `huggingface_hub` version: 0.26.2
- PyArrow version: 18.0.0
- Pandas version: 2.2.3
- `fsspec` version: 2024.9.0