개요

환경

갔다

import numpy as np
import cv2

img = cv2.imread("C:\\Penguins.jpg", cv2.IMREAD_GRAYSCALE)
cv2.imshow("テストタイトル",img)

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-6-89f615e5c653> in <module>()
      1 import numpy as np
----> 2 import cv2
      3 
      4 img = cv2.imread("C:\\Penguins.jpg", cv2.IMREAD_GRAYSCALE)
      5 cv2.imshow("テストタイトル",img)

ModuleNotFoundError: No module named 'cv2'

터미널을 열고

pip install opencv-python

[여담] OpenCV를 버전 지정하여 설치하려면

pip uninstall opencv-python
pip install opencv-python==3.4.5
Collecting opencv-python==3.4.5
  Could not find a version that satisfies the requirement opencv-python==3.4.5 (from versions: 3.4.2
.16, 3.4.2.17, 3.4.3.18, 3.4.4.19, 3.4.5.20, 4.0.0.21)
No matching distribution found for opencv-python==3.4.5
You are using pip version 10.0.1, however version 19.0.3 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

pip install opencv-python==3.4.5.20

2019/02/27 추가