class_docstr: KITTI dataset which uses the updated ground truth depth maps
      
class_docstr_tok: ["KITTI","dataset","which","uses","the","updated","ground","truth","depth","maps"]
code: def get_depth(self, folder, frame_index, side, do_flip):
      f_str = "{:010d}.png".format(frame_index)
      depth_path = os.path.join(
          self.data_path,
          folder,
          "proj_depth/groundtruth/image_0{}".format(
              self.side_map[side]
          ),
          f_str,
      )
  
      depth_gt = pil.open(depth_path)
      depth_gt = depth_gt.resize(self.full_res_shape, pil.NEAREST)
      depth_gt = np.array(depth_gt).astype(np.float32) / 256
  
      if do_flip:
          depth_gt = np.fliplr(depth_gt)
  
      return depth_gt
  
imports: from __future__ import absolute_import, division, print_function
  import os
  import numpy
  import PIL.Image
  from ...utils.filesystem import try_import_skimage
  from .kitti_utils import generate_depth_map
  from .mono_dataset import MonoDataset
label_desc: Use image node_id 3 for calling the KITTIDepthDataset obj's underlying member method code with example usage: obj.get_depth(folder, frame_index, side, do_flip) and returns: depth_gt