How to add my local compiled OpenCV to Python path?

Admin 1
Viewed 3105

I'm using Windows 10 with python 3 installed. I downloaded the opencv 4 source code and compiled it from its cmake file successfully. I also run the install.vcproj to install it.

The install path is like this:

C:\OpenCV
  bin
  etc
  include
  sample
  x86
    vc15
      bin
      lib

Then I manually add C:\OpenCV\x86\vc15\bin to the environment variable of path, so that I can run the compiled c++ samples.

Now I want to run some python samples, in C:\OpenCV\samples\python, for example, the opencv_version.py, but I have a ModuleNotFoundError at this line of code:

import cv2 as cv

It seems that my locally compile opencv can't be found by python.

I know that if I want to use the precompiled opencv, I just run pip3 install opencv-python, but now I don't want to use the precompiled version, I want to use my own compiled opencv for python.

Questions:

  1. Do I need to change some cmake configurations during my build of opencv to enable its python binding?
  2. How do I add my own opencv to the path of python, which path (in my case, which C:\OpenCV sub-folder) should be added?
opencv python c++
2 Answers

once you have compiled from source successfully using make, purge any other versions of opencv and just run make install.

user_159853720

you have to add this opencv in python modules

There are several ways to add things to the PYTHONPATH.

Read http://docs.python.org/library/site.html

Set the PYTHONPATH environment variable prior to running your script.

You can do this python -m agent to run agent.py from your PYTHONPATH.

Create .pth files in your lib/site-packages directory.

Install your modules in lib/site-packages.
user_90503030
Related