Pycharm/Python OpenCV and CV2 install error

Question

I\'ve been trying to install both OpenCV and cv2 from both Pycharm and from the terminal as suggested using:

pip install --user opencv
pip install --user cv2         


        

Answer 1

python3.6 -m pip install opencv-python

will install cv2 in python3.6 branch

Answer 2

When I was facing this issue I used to install OpenCV in pycharm installed package panel where we can find under the settings tab. Search "OpenCV-python" and install it in the installed package panel of right interpreter.

Answer 3

you must install opencv-python pip/pip3 install opencv-python if you try import opencv-python, receive error. Fix this error, use the import cv2

Answer 4

Try this. I am using Jupyter notebook (OS: Ubuntu 16.04 LTS on Google Cloud Platform + on Windows). Executed following command in the Jupyter notebook to install opencv:

!pip install opencv-contrib-python    #working on both Windows and Ubuntu

After successful installation you will get following message:

Successfully installed opencv-contrib-python-4.1.0.25

Now restart the kernel and try to import opencv as:

import cv2

The same command can be used to installed opencv on Windows as well.

SOLUTION 2: try following commands to install opencv: For Ubuntu: Run following command from terminal:

sudo apt-get install libsm6 libxrender1 libfontconfig1

Restart Jupyter notebook kernel and execute following command:

!pip install opencv-contrib-python

NOTE: You can run all the above commands from the terminal as well without using '!'.

Answer 5

In jetso nano this work for me.

$ git clone https://github.com/JetsonHacksNano/buildOpenCV
$ cd buildOpenCV

Answer 6

I had the same problem. Here are the steps for Windows 10 users.

Open CMD: win+r then type cmd. Now,

1. Type pip install virtualenv
2. Create a Virtual Environment, Type virtualenv testopencv
3. Get Inside testopencv, Type cd testopencv
4. Activate the Virtual Environment, Type .\Scripts\activate
5. Now Install Opencv, Type pip install opencv-contrib-python --upgrade
6. Let's test Opencv, Type Python then import cv2 hit enter then type print(cv2.__version__) to check if its installed

Now, open a new cmd, win + r then type cmd, repeat step 6. If it gives you an error.

Go inside the testopencv folder, inside lib. Copy everything, go to your python directory, inside lib folder paste it and skip that are already present.

Again open a new cmd, repeat Step 6.

Hope it helps.