Find OpenCV Version Installed on Ubuntu [duplicate]
You can look at the headers or libs installed. pkg-config can tell you where they are:
pkg-config --cflags opencv
pkg-config --libs opencv
Alternatively you can write a simple program and print the following defs:
A similar question has been also asked here:
Determine which version of OpenCV
>>> from cv2 import __version__
'$Rev: 4557 $'
If that doesn't work then, use
cv instead of
How to determine OpenCV version
You can check the
Is there a way to know the options with which OpenCV was installed?
Yes, there is a way. You can use getBuildInformation().
In case of cpp,
std::cout << cv::getBuildInformation() << std::endl;
This will return information about cmake settings, version control, compiler flags, third-party libraries etc related to opencv installation.
How to check for openCV on Ubuntu 9.10
A proper answer to my own question !
pkg-config --modversion opencv
Any way to check opencv version in iOS project?
If you the framework file in the exact version, it is defined in there.
std::cout << CV_VERSION << std::endl;
If you don't have the dependencies, you can only look for strings in the binary or estimate from what features are used.
How to link python3 to a specific version of opencv?
I follow @Peter's suggestion
print(cv2). I find a cv2.so in
/home/.local/lib/python3.6/site-packages/cv2 folder, but my OpenCV 4.5.0 was installed in
Then, I removed the cv2 folder in
/home/..., and I
import cv2 again, and
cv2.__version__ now is 4.5.0 and all functions worked.
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