Function preprocess

src/diffusers_data_pipeline.py:226–230

(image, scale, resample)

def preprocess(image, scale, resample):
    image = image.resize((scale, scale), resample=resample)
    image = np.array(image).astype(np.uint8)
    image = (image / 127.5 - 1.0).astype(np.float32)
    return image


def collate_fn(examples, with_prior_preservation):