code: def _apply_single(self, data, meta):
      assert self.target_height > 0  # Not set yet
      out, params = self.normalize(data.astype(np.uint8))
      meta["center"] = params
      return out
  
file_path: calamari/calamari_ocr/ocr/dataset/imageprocessors/center_normalizer.py
imports: from dataclasses import dataclass, field
  from typing import Type, Tuple
  import numpy
  import cv2
  from paiargparse import pai_dataclass
  from tfaip.data.pipeline.processor.dataprocessor import DataProcessorParams
  from calamari_ocr.ocr.dataset.imageprocessors.scale_to_height_processor import scale_to_h
  from calamari_ocr.ocr.dataset.imageprocessors.data_preprocessor import ImageProcessor
label_desc: Use image node_id 2 for calling the CenterNormalizerProcessor obj's underlying member method code with example usage: obj._apply_single(data, meta) and returns: out