cv2 を見つけられない about coral_usb_ros HOT 10 CLOSED

$ roslaunch coral_usb edgetpu_object_detector.launch INPUT_IMAGE:=/camera/rgb/image_raw
... logging to /home/shumpeiwakabayashi/.ros/log/4aaa27a2-a0e1-11ea-a66d-287fcf9948c3/roslaunch-shumpeiwakabayashi-ThinkPad-T495s-29977.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://shumpeiwakabayashi-ThinkPad-T495s:45251/

SUMMARY
========

PARAMETERS
 * /edgetpu_object_detector/label_file: /home/shumpeiwaka...
 * /edgetpu_object_detector/model_file: /home/shumpeiwaka...
 * /rosdistro: melodic
 * /rosversion: 1.14.5

NODES
  /
    edgetpu_object_detector (coral_usb/edgetpu_object_detector.py)

ROS_MASTER_URI=http://localhost:11311

process[edgetpu_object_detector-1]: started with pid [30985]
Traceback (most recent call last):
  File "/home/shumpeiwakabayashi/coral_ws/src/coral_usb_ros/node_scripts/edgetpu_object_detector.py", line 14, in <module>
    import cv2  # NOQA
ModuleNotFoundError: No module named 'cv2'
[edgetpu_object_detector-1] process has died [pid 30985, exit code 1, cmd /home/shumpeiwakabayashi/coral_ws/devel/lib/coral_usb/edgetpu_object_detector.py ~input:=/camera/rgb/image_raw __name:=edgetpu_object_detector __log:=/home/shumpeiwakabayashi/.ros/log/4aaa27a2-a0e1-11ea-a66d-287fcf9948c3/edgetpu_object_detector-1.log].
log file: /home/shumpeiwakabayashi/.ros/log/4aaa27a2-a0e1-11ea-a66d-287fcf9948c3/edgetpu_object_detector-1*.log
[edgetpu_object_detector-1] restarting process

source /opt/ros/melodic/setup.bash
source ~/coral_ws/devel/setup.bash
ipython
>> import cv2

roslaunch coral_usb edgetpu_object_detector.launch INPUT_IMAGE:=/camera/rgb/image_raw

sudo apt-get install python3-opencv