Error importing cv2 after compiling OpenCV from source (Python)
Hello guys, I am following two tutorials on Youtube on how we can compile OpenCV (4.4.0) from source using CMake and Visual Studio 2019. And currently, I'm using Windows with CUDA 10.1.
Tutorial 1: https://www.youtube.com/watch?v=_fqpYLM6SCw&t=331s&ab_channel=TheAIGuy
Tutorial 2: https://www.youtube.com/watch?v=tjXkW0-4gME&t=1s&ab_channel=TheCodingBug
After following step by step, including "Build" for the ALL_BUILD and "INSTALL" it, I couldn't use the OpenCV in the terminal, by importing python
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'
I also noticed that after obtaining OpenCV.sln, I do not have the "binding" folder like both of tutorial videos.
The questions are:
1) Does the binding file is really that important ?
2) If its not that important, how can I use the openCV that has been compiled with my Python?
Edited
Below are the outputs from opencv_version_win32.exe
General configuration for OpenCV 4.4.0 =====================================
Version control: unknown
Extra modules:
Location (extra): C:/Users/user/OpenCV_CUDA/opencv_contrib-4.4.0/modules
Version control (extra): unknown
Platform:
Timestamp: 2020-09-22T19:42:44Z
Host: Windows 10.0.18363 AMD64
CMake: 3.18.2
CMake generator: Visual Studio 16 2019
CMake build tool: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/MSBuild/Current/Bin/MSBuild.exe
MSVC: 1923
CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (17 files): + SSSE3 SSE4_1
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (31 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (7 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.23.28105/bin/Hostx64/x64/cl.exe (ver 19.23.28107.0)
C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP /MD /O2 /Ob2 /DNDEBUG
C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP /MDd /Zi /Ob0 /Od /RTC1
C Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.23.28105/bin/Hostx64/x64/cl.exe
C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /MP /MD /O2 /Ob2 /DNDEBUG
C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /MP /MDd /Zi /Ob0 /Od /RTC1
Linker flags (Release): /machine:x64 /INCREMENTAL:NO
Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
ccache: NO
Precompiled headers: YES
Extra dependencies: cudart_static.lib nppc.lib nppial.lib nppicc.lib nppicom.lib nppidei.lib nppif.lib nppig.lib nppim.lib nppist.lib nppisu.lib nppitc.lib npps.lib cublas.lib cudnn.lib cufft.lib -LIBPATH:C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v10.1/lib/x64
3rdparty dependencies:
OpenCV modules:
To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dnn_superres dpm face features2d flann fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor ml objdetect optflow phase_unwrapping photo plot quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
Disabled: world
Disabled by dependency: -
Unavailable: alphamat cnn_3dobj cvv freetype hdf java js julia matlab ovis python2 python3 sfm viz
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO
Windows RT support: NO
GUI:
Win32 UI: YES
VTK support: NO
Media I/O:
ZLib: build (ver 1.2.11)
JPEG: build-libjpeg-turbo (ver 2.0.5-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.0.10)
JPEG 2000: build Jasper (ver 1.900.1)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (58.54.100)
avformat: YES (58.29.100)
avutil: YES (56.31.100)
swscale: YES (5.5.100)
avresample: YES (4.0.0)
GStreamer: NO
DirectShow: YES
Media Foundation: YES
DXVA: YES
Parallel framework: Concurrency
Trace: YES (with Intel ITT)
Other third-party libraries:
Intel IPP: 2020.0.0 Gold [2020.0.0]
at: C:/Users/user/OpenCV_CUDA/build/3rdparty/ippicv/ippicv_win/icv
Intel IPP IW: sources (2020.0.0)
at: C:/Users/user/OpenCV_CUDA/build/3rdparty/ippicv/ippicv_win/iw
Lapack: NO
Eigen: NO
Custom HAL: NO
Protobuf: build (3.5.1)
NVIDIA CUDA: YES (ver 10.1, CUFFT CUBLAS FAST_MATH)
NVIDIA GPU arch: 61
NVIDIA PTX archs:
cuDNN: YES (ver 8.0.3)
OpenCL: YES (NVD3D11)
Include path: C:/Users/user/OpenCV_CUDA/opencv-4.4.0/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python (for build): C:/Users/user/AppData/Local/Programs/Python/Python37/python.exe
Java:
ant: NO
JNI: C:/Program Files/Java/jdk-12.0.1/include C:/Program Files/Java/jdk-12.0.1/include/win32 C:/Program Files/Java/jdk-12.0.1/include
Java wrappers: NO
Java tests: NO
Install to: C:/Users/user/OpenCV_CUDA/build/install
-----------------------------------------------------------------
OpenCL Platforms:
NVIDIA CUDA
dGPU: GeForce GTX 1060 (OpenCL 1.2 CUDA)
Current OpenCL device:
Type = dGPU
Name = GeForce GTX 1060
Version = OpenCL 1.2 CUDA
Driver version = 451.67
Address bits = 64
Compute units = 10
Max work group size = 1024
Local memory size = 48 KB
Max memory allocation size = 768 MB
Double support = Yes
Host unified memory = No
Device extensions:
cl_khr_global_int32_base_atomics
cl_khr_global_int32_extended_atomics
cl_khr_local_int32_base_atomics
cl_khr_local_int32_extended_atomics
cl_khr_fp64
cl_khr_byte_addressable_store
cl_khr_icd
cl_khr_gl_sharing
cl_nv_compiler_options
cl_nv_device_attribute_query
cl_nv_pragma_unroll
cl_nv_d3d10_sharing
cl_khr_d3d10_sharing
cl_nv_d3d11_sharing
cl_nv_copy_opts
cl_nv_create_buffer
cl_khr_int64_base_atomics
cl_khr_int64_extended_atomics
Has AMD Blas = No
Has AMD Fft = No
Preferred vector width char = 1
Preferred vector width short = 1
Preferred vector width int = 1
Preferred vector width long = 1
Preferred vector width float = 1
Preferred vector width double = 1
OpenCV's HW features list:
ID= 1 (MMX) -> ON
ID= 2 (SSE) -> ON
ID= 3 (SSE2) -> ON
ID= 4 (SSE3) -> ON
ID= 5 (SSSE3) -> ON
ID= 6 (SSE4.1) -> ON
ID= 7 (SSE4.2) -> ON
ID= 8 (POPCNT) -> ON
ID= 9 (FP16) -> ON
ID= 10 (AVX) -> ON
ID= 11 (AVX2) -> ON
ID= 12 (FMA3) -> ON
Total available: 12
Parallel framework: ms-concurrency (nthreads=12)
