error on running

[Antwnina]

MacBook-Pro:GitHub userA$ cd face_classification/
MacBook-Pro:face_classification userA$ ls
Dockerfile README.md datasets report.pdf trained_models
LICENSE REQUIREMENTS.txt images src
MacBook-Pro:face_classification userA$ ls -a
. .gitignore README.md images trained_models
.. Dockerfile REQUIREMENTS.txt report.pdf
.git LICENSE datasets src
MacBook-Pro:face_classification userA$ cd src/
MacBook-Pro:src userA$ python3 video_emotion_color_demo.py
Traceback (most recent call last):
File "video_emotion_color_demo.py", line 3, in
import cv2
ModuleNotFoundError: No module named 'cv2'
MacBook-Pro:src userA$ python3 image_gradcam_demo.py
Traceback (most recent call last):
File "image_gradcam_demo.py", line 3, in
import cv2
ModuleNotFoundError: No module named 'cv2'
MacBook-Pro:src userA$ python3 image_emotion_gender_demo.py ../images/test_image.jpg
Traceback (most recent call last):
File "image_emotion_gender_demo.py", line 3, in
import cv2
ModuleNotFoundError: No module named 'cv2'
MacBook-Pro:src userA$

[billyceline]

You need to install opencv library, before you run the demo