cv2的libpng15的导入错误如何纠正？[解决]

Question

I'm trying to install opencv to use yolov4 but I have encountered an issue when I try to import cv2 on python:

ImportError: libpng15-c2ffaf3d.so.15.13.0: cannot open shared object file: No such file or directory

I have installed opencv with:

sudo apt install libopencv-dev python3-opencv

and I try:

sudo apt-get install libpng-dev

but it didn't help.

I have found nothing on libpng15-c2ffaf3d on the internet so if someone can help it will save me.

Answer 1

It seems the package is not located where python is searching,You can try

Solution:

apt-get update
apt-get install -y libsm6 libxext6 libxrender-dev
pip install opencv-python

Answer 2

I was having the same issue in my Linux environment of pythonanywhere. I created the virtual environment and installed my package of open-cv using:

pip install opencv-contrib-python

But it was raising this exception:

ImportError at /: libpng15-c2ffaf3d.so.15.13.0: cannot open shared object file: No such file or directory

Then I installed another package using:

pip install opencv-python

which resolved my issue.

Make sure you install it in the same virtual environment.