docstr: Takes points in eye coordinates and project them to the pixel 2d coordinates
  x_pixel = -fx_pixel * X / Z + px_pixel
  y_pixel =  fy_pixel * Y / Z + py_pixel
code: def eye_2_pixel(self, points_eye):
      """
      Takes points in eye coordinates and project them to the pixel 2d coordinates
      x_pixel = -fx_pixel * X / Z + px_pixel
      y_pixel =  fy_pixel * Y / Z + py_pixel
      """
  
      points_pixel = (points_eye[:, :2].T / points_eye[:, 2]).T
      points_pixel *= self.focal_length_pixel * np.array([-1, 1])
      points_pixel += self.principal_point_pixel
  
      return points_pixel
  
file_path: norfair/demos/3d_track/src/utils.py
imports: import cv2
  import numpy
  from norfair import Palette
label_desc: Use image node_id 5 for calling the PixelCoordinatesProjecter obj's underlying member method code with example usage: obj.eye_2_pixel(points_eye) and returns: points_pixel