How to install OpenCV with CUDA GPU in windows 10 | Python

⭐️ Content Description ⭐️
In this video, I have explained on how to install opencv with cuda gpu support in windows 10. I have also explained how to install cuda and cuda toolkit in this video, so you could use gpu for deep learning. Please follow all the steps in orderly manner for successful installation.
Download Links:-
MSVC - visualstudio.microsoft.com/
Anaconda - www.anaconda.com/products/dis...
Cmake - cmake.org/download/
OpenCV - opencv.org/releases/
OpenCV Contrib - github.com/opencv/opencv_contrib
GPU version list - developer.nvidia.com/cuda-gpus
Cuda Toolkit - conda install -c conda-forge cudatoolkit=11.2 cudnn=8.1.0
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🕒 Timeline
00:00 Introduction to OpenCV CUDA
01:01 Install Visual Studio and Tools
02:32 Install CUDA Toolkit and Cudnn
04:19 Download CMake and OpenCV
05:15 Install CMake
06:07 Configure OpenCV with CMake
13:07 Build and Install OpenCV CUDA
14:40 Test OpenCV performance with CUDA
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[@brooksnelson7870]

Great video. One question. If I have a virtual environment already developed, can I build the make file in the environment? Would I have to activate environment then follow your steps?

[@HackersRealm]

I think you can use on any environment once the installation process is done. It's like a global installation similar to microsoft vs build tools

[@LaloHao]

How do you enable nvidia video codec headers?

[@kaviprasadjay2473]

Error in configuration process, project files may be invalid. I'm getting this error after the process at 10 th minute

[@lukasTHEwise]

It doesn't show the specific python paths in CMake for me, just the build. After adding them manually, the CMake installation just stops after 30-40 seconds and it didn't install the library, do these cases have anything in common or what could be the reason?

[@LaloHao]

My CMake is also having problems finding python, did you manage to solve it?

[@user-se6ry6be1t]

I built opencv using cmake. but i can not import cv2 in anaconda prompt.

[@MozillaMayhem]

CMake Error at modules/dnn/CMakeLists.txt:53 (message): DNN: CUDA backend requires cuDNN. Please resolve dependency or disable OPENCV_DNN_CUDA=OFF what is my fix for this?

[@HackersRealm]

You have to install cuda drivers for your nvidia gpu

[@golden5023]

If anyone else is having issues make sure you are using visual studio 2019 for some reason the 2022 version doesnt work :0

[@akosbalint3485]

I have just run into this issue, vs2019 is working fine.

[@ofeksasson]

cv2.error: OpenCV(4.8.0) D:\a\opencv-python\opencv-python\opencv\modules\core\include\opencv2/core/private.cuda.hpp:106: error: (-216:No CUDA support) The library is compiled without CUDA support in function 'throw_no_cuda' im getting this error after following your video, do you know of a fix?

[@HackersRealm]

you might need to install cuda drivers for the nvidia gpu... If that's working then this issue will be resolved

[@ofeksasson]

@@HackersRealm I have the latest drivers and both cuda and cudnn are working when I use tensorflow and pytorch. Only when I try to use GPU with opencv I get the problems

[@emre_tif]

check your system variable paths if you have still that error because i fix that way @@ofeksasson

[@TheAhmedps]

same problem have you managed to solve it?

[@rajajairamrameshbabu7605]

Please make video introduction to nim game hackerrank solution

[@BLOCKBUSTERMOVIES1-br9ys]

How to fix this error please:CMake Error at modules/dnn/CMakeLists.txt:41 (message): DNN: CUDA backend requires cuDNN. Please resolve dependency or disable OPENCV_DNN_CUDA=OFF

[@HackersRealm]

You need a nvidia graphics card and install the cuda toolkit to avoid this error

[@aimusicgenerates]

i can import cv2 but not have any module: __version__ not work, all not work. only i can import it

[@HackersRealm]

that's strange, if you can import without issues, then it should ideally work

[@sam_razum]

it is saying project files matbe invalid in cmake

[@Th3Test5656]

same did u figure it out ive tried everything still no luck

[@angeljo6020]

is this video complete? where should we place the folder should we add any environment variable?

[@HackersRealm]

yes the video is complete, and once you complete all the steps, you can access the same way like importing opencv module

[@angeljo6020]

@@HackersRealm i tried and gave up , got a prebuilt whl package

[@HackersRealm]

@@angeljo6020If you can share the whl package link, it would be helpful to others as well.

[@MintHimself]

@@angeljo6020 yoo could i get that prebuild whl package? sat here for 4 hours tryina figure this shit out

[@YetiRUS]

Это не работает. Сборка CMake прошла успешно. Но импорт cv2 невозможен >>> import cv2 Traceback (most recent call last): File "", line 1, in ModuleNotFoundError: No module named 'cv2'

[@HackersRealm]

kindly check the environment you're trying to use, I have used anaconda environment and installed there for usage.

[@YetiRUS]

@@HackersRealmя не могу найти в CMake параметр BUILD_opencv_python3

[@vebjrnpedersen1091]

i get: Could not find OpenBLAS include. Turning OpenBLAS_FOUND off Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off Could NOT find BLAS (missing: BLAS_LIBRARIES) Could NOT find LAPACK (missing: LAPACK_LIBRARIES) Reason given by package: LAPACK could not be found because dependency BLAS could not be found. Could NOT find Java (missing: Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE) Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 AWT JVM) VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file Configuring incomplete, errors occurred! And an error pop up, when trying to "Generate"

[@Jforward2god]

same

[@naufalfauzan36]

same