code: def applyFile(self, raw_frame, detections=None):
      line = self.gmcFile.readline()
      tokens = line.split("\t")
      H = np.eye(2, 3, dtype=np.float_)
      H[0, 0] = float(tokens[1])
      H[0, 1] = float(tokens[2])
      H[0, 2] = float(tokens[3])
      H[1, 0] = float(tokens[4])
      H[1, 1] = float(tokens[5])
      H[1, 2] = float(tokens[6])
  
      return H
  
file_path: PaddleDetection/ppdet/modeling/mot/motion/gmc.py
imports: import cv2
  import matplotlib.pyplot
  import numpy
  import copy
  import time
  from ppdet.core.workspace import register, serializable
label_desc: Use image node_id 6 for calling the GMC obj's underlying member method code with example usage: obj.applyFile(raw_frame, detections) and returns: H