def central_crop(image, mask, image_path):
    """ Central Crops the images and masks with 64px border. Has to be applied with tf.data.Dataset.map function
        Args:
        image: image as [heigth, width, channels]
        mask: mask as [heigth, width, channels]
        image_path: Path of image files. used to map images afterwards
        Returns:
        image, mask, image_path
    """
    image = image[64:-64, 64:-64]
    mask = mask[64:-64, 64:-64]
    return image, mask, image_path