ModuleNotFoundError: No Module Named ‘CV2’
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The error “ModuleNotFoundError: No module named ‘cv2′” occurs when Python cannot find the OpenCV library. OpenCV (cv2) is a powerful computer vision library used for image and video processing.
Fix: Install OpenCV
1. Install via pip (Recommended)
Run the following command in your terminal or command prompt:
pip install opencv-python
If you need extra features like SIFT, SURF, or other advanced functions, install:
pip install opencv-contrib-python
Make sure you are using the correct Python environment if you have multiple versions installed.
2. If You Are Using Anaconda
Use the following command:
conda install -c conda-forge opencv
3. Verify Installation
After installation, check if OpenCV is correctly installed by running:
import cv2
print(cv2.__version__)
If this prints the OpenCV version without errors, the installation is successful.
4. If the Issue Persists
Try upgrading pip before reinstalling OpenCV:
pip install –upgrade pip
- Ensure you are running Python in the correct virtual environment.
- If using Jupyter Notebook, restart the kernel after installation.
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