Trouble building OpenCV from source with Gstreamer and more trouble installing from Visual Studio

lcumbridge · January 4, 2024, 6:43pm

Two days into trying every combination of steps I can muster. I am attempting to build OpenCV 4.9 in Windows to include Gstreamer functionality. I set WITH_GSTREAMER

Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.19045.
ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
Detected processor: AMD64
sizeof(void) = 4 on 64 bit processor. Assume 32-bit compilation mode
libjpeg-turbo: VERSION = 2.1.3, BUILD = opencv-4.9.0-libjpeg-turbo
libjpeg-turbo(SIMD): SIMD extensions disabled: could not find NASM compiler.  Performance will suffer.
Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
OpenJPEG: VERSION = 2.5.0, BUILD = opencv-4.9.0-openjp2-2.5.0
OpenJPEG libraries will be built from sources: libopenjp2 (version "2.5.0")
found Intel IPP (ICV version): 2021.11.0 [2021.11.0]
at: C:/Users/Leonard/OpenCV/build/3rdparty/ippicv/ippicv_win/icv
found Intel IPP Integration Wrappers sources: 2021.11.0
at: C:/Users/Leonard/OpenCV/build/3rdparty/ippicv/ippicv_win/iw
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.

VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
Module opencv_alphamat disabled because the following dependencies are not found: Eigen
freetype2:   NO
harfbuzz:    NO
Julia not found. Not compiling Julia Bindings. 
Module opencv_ovis disabled because OGRE3D was not found
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
Tesseract:   NO
Allocator metrics storage type: 'long long'
Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx2.cpp
Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx512_skx.cpp
Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.avx2.cpp
Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.avx512_skx.cpp
Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.lasx.cpp
Excluding from source files list: <BUILD>/modules/core/test/test_intrin512.avx512_skx.cpp
Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp
Excluding from source files list: modules/imgproc/src/imgwarp.lasx.cpp
Excluding from source files list: modules/imgproc/src/resize.avx2.cpp
Excluding from source files list: modules/imgproc/src/resize.lasx.cpp
Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
opencv_dnn: filter out cuda4dnn source code
Excluding from source files list: modules/dnn/src/layers/cpu_kernels/conv_winograd_f63.neon.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.rvv.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.lasx.cpp
Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.avx512_skx.cpp
Excluding from source files list: <BUILD>/modules/dnn/int8layers/layers_common.lasx.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_block.neon_fp16.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.rvv.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_depthwise.lasx.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_winograd_f63.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/conv_winograd_f63.neon_fp16.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.neon.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/cpu_kernels/fast_gemm_kernels.lasx.cpp
Excluding from source files list: modules/features2d/src/fast.avx2.cpp
imgcodecs: OpenEXR codec is disabled in runtime. Details: https://github.com/opencv/opencv/issues/21326
highgui: using builtin backend: WIN32UI
rgbd: Eigen support is disabled. Eigen is Required for Posegraph optimization
Found 'misc' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/python/package/extra_modules
Found 'mat_wrapper;utils' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/core/misc/python/package
Found 'gapi' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/gapi/misc/python/package
Found 'misc' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/python/package/extra_modules
Found 'mat_wrapper;utils' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/core/misc/python/package
Found 'gapi' Python modules from C:/Users/Leonard/OpenCV/opencv-4.9.0/modules/gapi/misc/python/package

General configuration for OpenCV 4.9.0 =====================================
  Version control:               unknown

  Extra modules:
    Location (extra):            C:/Users/Leonard/OpenCV/opencv_contrib-4.9.0/modules
    Version control (extra):     unknown

  Platform:
    Timestamp:                   2024-01-04T17:01:22Z
    Host:                        Windows 10.0.19045 AMD64
    CMake:                       3.28.1
    CMake generator:             Visual Studio 17 2022
    CMake build tool:            C:/Program Files/Microsoft Visual Studio/2022/Community/MSBuild/Current/Bin/amd64/MSBuild.exe
    MSVC:                        1938
    Configuration:               Debug Release

  CPU/HW features:
    Baseline:                    SSE SSE2
      requested:                 SSE2
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX
      requested:                 SSE4_1 SSE4_2 AVX FP16
      SSE4_1 (19 files):         + SSE3 SSSE3 SSE4_1
      SSE4_2 (2 files):          + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (1 files):            + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (9 files):             + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX

  C/C++:
    Built as dynamic libs?:      YES
    C++ standard:                11
    C++ Compiler:                C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x86/cl.exe  (ver 19.38.33133.0)
    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:precise  /arch:SSE /arch:SSE2 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP  /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:precise  /arch:SSE /arch:SSE2 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP  /Zi /Ob0 /Od /RTC1 
    C Compiler:                  C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x86/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:precise  /arch:SSE /arch:SSE2 /MP   /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:precise  /arch:SSE /arch:SSE2 /MP /Zi /Ob0 /Od /RTC1 
    Linker flags (Release):      /machine:X86  /INCREMENTAL:NO 
    Linker flags (Debug):        /machine:X86  /debug /INCREMENTAL 
    ccache:                      NO
    Precompiled headers:         YES
    Extra dependencies:
    3rdparty dependencies:

  OpenCV modules:
    To be built:                 aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform java line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
    Disabled:                    world
    Disabled by dependency:      -
    Unavailable:                 alphamat cannops cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv freetype hdf julia matlab ovis python2 sfm viz
    Applications:                tests perf_tests apps
    Documentation:               NO
    Non-free algorithms:         NO

  Windows RT support:            NO

  GUI:                           WIN32UI
    Win32 UI:                    YES
    VTK support:                 NO

  Media I/O: 
    ZLib:                        build (ver 1.3)
    JPEG:                        build-libjpeg-turbo (ver 2.1.3-62)
      SIMD Support Request:      YES
      SIMD Support:              NO
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         build (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.2.0)
    JPEG 2000:                   build (ver 2.5.0)
    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 (58.134.100)
      avformat:                  YES (58.76.100)
      avutil:                    YES (56.70.100)
      swscale:                   YES (5.9.100)
      avresample:                YES (4.0.0)
    GStreamer:                   YES (1.22.8)
    DirectShow:                  YES
    Media Foundation:            YES
      DXVA:                      YES

  Parallel framework:            Concurrency

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2021.11.0 [2021.11.0]
           at:                   C:/Users/Leonard/OpenCV/build/3rdparty/ippicv/ippicv_win/icv
    Intel IPP IW:                sources (2021.11.0)
              at:                C:/Users/Leonard/OpenCV/build/3rdparty/ippicv/ippicv_win/iw
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.19.1)
    Flatbuffers:                 builtin/3rdparty (23.5.9)

  OpenCL:                        YES (NVD3D11)
    Include path:                C:/Users/Leonard/OpenCV/opencv-4.9.0/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 C:/Program Files (x86)/Python312-32/python.exe (ver 3.12.1)
    Libraries:                   optimized C:/Program Files (x86)/Python312-32/libs/python312.lib debug C:/Program Files (x86)/Python312-32/libs/python312_d.lib (ver 3.12.1)
    numpy:                       C:/Users/Leonard/AppData/Roaming/Python/Python312-32/site-packages/numpy/core/include (ver 1.26.3)
    install path:                C:/Program Files (x86)/Python312-32/Lib/site-packages/cv2/python-3.12

  Python (for build):            C:/Program Files (x86)/Python312-32/python.exe

  Java:                          
    ant:                         NO
    Java:                        YES (ver 1.8.0.152)
    JNI:                         C:/Program Files (x86)/Java/jdk1.8.0_152/include C:/Program Files (x86)/Java/jdk1.8.0_152/include/win32 C:/Program Files (x86)/Java/jdk1.8.0_152/include
    Java wrappers:               YES (JAVA)
    Java tests:                  NO

  Install to:                    C:/Users/Leonard/OpenCV/build/install
-----------------------------------------------------------------

Configuring done (16.9s)

Generate finishes no errors. I run the OpenCV.sls in Visual Studio 2022. Build exits no errors. Install churns and exits no errors. I have an OpenCV_DIR in PATH. But after I build Install and launch Python import cv2 returns module not found. I have worked around by copying the files from my build dir into the Python dir. when I cv2.getBuildInformation…

Python 3.12.1 (tags/v3.12.1:2305ca5, Dec  7 2023, 21:47:43) [MSC v.1937 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>> print(cv2.getBuildInformation())

General configuration for OpenCV 4.9.0 =====================================
  Version control:               4.9.0

  Platform:
    Timestamp:                   2023-12-31T11:21:18Z
    Host:                        Windows 10.0.17763 AMD64
    CMake:                       3.24.2
    CMake generator:             Visual Studio 14 2015
    CMake build tool:            MSBuild.exe
    MSVC:                        1900
    Configuration:               Debug Release

  CPU/HW features:
    Baseline:                    SSE SSE2
      requested:                 SSE2
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX
      requested:                 SSE4_1 SSE4_2 AVX FP16
      SSE4_1 (16 files):         + SSE3 SSSE3 SSE4_1
      SSE4_2 (1 files):          + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (0 files):            + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (8 files):             + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX

  C/C++:
    Built as dynamic libs?:      NO
    C++ standard:                11
    C++ Compiler:                C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe  (ver 19.0.24247.2)
    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:precise  /arch:SSE /arch:SSE2 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP  /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:precise  /arch:SSE /arch:SSE2 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP  /Zi /Ob0 /Od /RTC1
    C Compiler:                  C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/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:precise  /arch:SSE /arch:SSE2 /MP   /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:precise  /arch:SSE /arch:SSE2 /MP /Zi /Ob0 /Od /RTC1
    Linker flags (Release):      /machine:X86  /NODEFAULTLIB:atlthunk.lib /INCREMENTAL:NO  /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:libcpmtd.lib /NODEFAULTLIB:msvcrtd.lib
    Linker flags (Debug):        /machine:X86  /NODEFAULTLIB:atlthunk.lib /debug /INCREMENTAL  /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:msvcrt.lib
    ccache:                      NO
    Precompiled headers:         YES
    Extra dependencies:          wsock32 comctl32 gdi32 ole32 setupapi ws2_32
    3rdparty dependencies:       libprotobuf ade ittnotify libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf zlib ippiw ippicv

  OpenCV modules:
    To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
    Disabled:                    java world
    Disabled by dependency:      -
    Unavailable:                 python2 ts
    Applications:                -
    Documentation:               NO
    Non-free algorithms:         NO

  Windows RT support:            NO

  GUI:                           WIN32UI
    Win32 UI:                    YES
    VTK support:                 NO

  Media I/O:
    ZLib:                        build (ver 1.3)
    JPEG:                        build-libjpeg-turbo (ver 2.1.3-62)
      SIMD Support Request:      YES
      SIMD Support:              NO
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         build (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.2.0)
    JPEG 2000:                   build (ver 2.5.0)
    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 (58.134.100)
      avformat:                  YES (58.76.100)
      avutil:                    YES (56.70.100)
      swscale:                   YES (5.9.100)
      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:                   2021.11.0 [2021.11.0]
           at:                   D:/a/opencv-python/opencv-python/_skbuild/win32-3.7/cmake-build/3rdparty/ippicv/ippicv_win/icv
    Intel IPP IW:                sources (2021.11.0)
              at:                D:/a/opencv-python/opencv-python/_skbuild/win32-3.7/cmake-build/3rdparty/ippicv/ippicv_win/iw
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.19.1)
    Flatbuffers:                 builtin/3rdparty (23.5.9)

  OpenCL:                        YES (NVD3D11)
    Include path:                D:/a/opencv-python/opencv-python/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 C:/hostedtoolcache/windows/Python/3.7.9/x86/python.exe (ver 3.7.9)
    Libraries:                   C:/hostedtoolcache/windows/Python/3.7.9/x86/libs/python37.lib (ver 3.7.9)
    numpy:                       C:/hostedtoolcache/windows/Python/3.7.9/x86/lib/site-packages/numpy/core/include (ver 1.17.0)
    install path:                python/cv2/python-3

  Python (for build):            C:\hostedtoolcache\windows\Python\3.7.9\x86\python.exe

  Java:
    ant:                         NO
    Java:                        YES (ver 1.8.0.392)
    JNI:                         C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include/win32 C:/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.392-8/x64/include
    Java wrappers:               NO
    Java tests:                  NO

  Install to:                    D:/a/opencv-python/opencv-python/_skbuild/win32-3.7/cmake-install

Please help. I have a project that streams video from a Raspberry PI using Gstreamer to IP addy: Port and I can not capture video into Opencv.

Regards,
L

crackwitz · January 4, 2024, 10:42pm

you’ll notice that the OpenCV in your Python is an entirely different one. it’s the official package, not your own build.

lcumbridge · January 4, 2024, 11:14pm

Thanks for the reply. This is a major part of my issue. When I build ‘Install’ in VS and then attempt to import cv2 in Python the module isn’t installed. What steps should I take to get VS to install the Opencv which I built? I’m a noob. Have mercy.

L

crackwitz · January 5, 2024, 10:28am

what’s the log output for that?

I would also recommend removing the opencv-python package from your python before you try to install your own build. check site-packages directory for leftovers.

lcumbridge · January 5, 2024, 4:23pm

I went back to the beginning. I uninstalled every Python version including all dir structures. I reinstalled Python 3.12. Numpy 1.26, did Cmake again from scratch. I cleaned all PATH variables and still no change. VS ‘Install’ appears to install the package in appropriate locations but in python:

import cv2
Traceback (most recent call last):
File “”, line 1, in
File “C:\Program Files\Python312\Lib\site-packages\cv2_init_.py”, line 181, in
bootstrap()
File “C:\Program Files\Python312\Lib\site-packages\cv2_init_.py”, line 153, in bootstrap
native_module = importlib.import_module(“cv2”)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files\Python312\Lib\importlib_init_.py”, line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ImportError: DLL load failed while importing cv2: The specified module could not be found.

Here is the install manifest from VS:

C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippicv-readme.htm
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippicv-EULA.rtf
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippicv-third-party-programs.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippiw-support.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippiw-third-party-programs.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ippiw-EULA.rtf
C:/Users/Leonard/OpenCV/build/install/etc/licenses/flatbuffers-LICENSE.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/opencl-headers-LICENSE.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ade-LICENSE
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ffmpeg-license.txt
C:/Users/Leonard/OpenCV/build/install/etc/licenses/ffmpeg-readme.txt
C:/Users/Leonard/OpenCV/build/install/include/opencv2/cvconfig.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/opencv_modules.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/OpenCVModules.cmake
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/OpenCVModules-release.cmake
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/OpenCVConfig-version.cmake
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/OpenCVConfig.cmake
C:/Users/Leonard/OpenCV/build/install/./OpenCVConfig-version.cmake
C:/Users/Leonard/OpenCV/build/install/./OpenCVConfig.cmake
C:/Users/Leonard/OpenCV/build/install/./LICENSE
C:/Users/Leonard/OpenCV/build/install/etc/licenses/zlib-LICENSE
C:/Users/Leonard/OpenCV/build/install/etc/licenses/libjpeg-turbo-README.md
C:/Users/Leonard/OpenCV/build/install/etc/licenses/libjpeg-turbo-LICENSE.md
C:/Users/Leonard/OpenCV/build/install/etc/licenses/libjpeg-turbo-README.ijg
C:/Users/Leonard/OpenCV/build/install/etc/licenses/libtiff-COPYRIGHT
C:/Users/Leonard/OpenCV/build/install/etc/licenses/libopenjp2-README.md
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C:/Users/Leonard/OpenCV/build/install/include/opencv2/surface_matching/ppf_helpers.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/surface_matching/ppf_match_3d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/surface_matching/t_hash_int.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_xphoto490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_xphoto490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/bm3d_image_denoising.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/dct_image_denoising.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/inpainting.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/oilpainting.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/tonemap.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xphoto/white_balance.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_dnn490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_dnn490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/all_layers.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/dict.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/dnn.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/dnn.inl.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/layer.details.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/layer.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/shape_utils.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/utils/debug_utils.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/utils/inference_engine.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn/version.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_dnn_superres490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_dnn_superres490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/dnn_superres.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_features2d490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_features2d490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/features2d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/features2d/features2d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/features2d/hal/interface.h
C:/Users/Leonard/OpenCV/build/install/etc/licenses/mscr-chi_table_LICENSE.txt
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_fuzzy490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_fuzzy490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/fuzzy.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/fuzzy/fuzzy_F0_math.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/fuzzy/fuzzy_F1_math.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/fuzzy/fuzzy_image.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/fuzzy/types.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_hfs490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_hfs490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/hfs.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_img_hash490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_img_hash490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/average_hash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/block_mean_hash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/color_moment_hash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/img_hash_base.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/marr_hildreth_hash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/phash.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/img_hash/radial_variance_hash.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_imgcodecs490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_imgcodecs490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs/imgcodecs.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs/imgcodecs_c.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs/ios.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs/legacy/constants_c.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/imgcodecs/macosx.h
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_line_descriptor490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_line_descriptor490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/line_descriptor.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/line_descriptor/descriptor.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_saliency490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_saliency490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/saliency.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/saliency/saliencyBaseClasses.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/saliency/saliencySpecializedClasses.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_text490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_text490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/text.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/text/erfilter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/text/ocr.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/text/swt_text_detection.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/text/textDetector.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_videoio490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_videoio490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio/cap_ios.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio/legacy/constants_c.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio/registry.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio/videoio.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videoio/videoio_c.h
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_videoio_ffmpeg490_64.dll
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_calib3d490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_calib3d490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/calib3d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/calib3d/calib3d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/calib3d/calib3d_c.h
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_datasets490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_datasets490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/ar_hmdb.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/ar_sports.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/dataset.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/fr_adience.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/fr_lfw.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/gr_chalearn.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/gr_skig.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/hpe_humaneva.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/hpe_parse.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/ir_affine.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/ir_robot.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/is_bsds.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/is_weizmann.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/msm_epfl.hpp

I’ve attempted to add Path = C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/

No change. cv2 module can not be imported.

Any suggestion is appreciated. If I need to provide more detailed information please advise.

tia,

L

lcumbridge · January 5, 2024, 4:25pm

second part of install manifest

C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/msm_middlebury.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/or_imagenet.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/or_mnist.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/or_pascal.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/or_sun.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/pd_caltech.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/pd_inria.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/slam_kitti.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/slam_tumindoor.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/sr_bsds.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/sr_div2k.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/sr_general100.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/tr_chars.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/tr_icdar.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/tr_svt.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/track_alov.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/track_vot.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/datasets/util.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_highgui490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_highgui490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/highgui.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/highgui/highgui.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/highgui/highgui_c.h
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_mcc490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_mcc490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/mcc.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/mcc/ccm.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/mcc/checker_detector.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/mcc/checker_model.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_objdetect490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_objdetect490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/aruco_board.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/aruco_detector.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/aruco_dictionary.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/barcode.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/charuco_detector.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/detection_based_tracker.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/face.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/graphical_code_detector.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/objdetect/objdetect.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_rapid490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_rapid490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rapid.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_rgbd490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_rgbd490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/colored_kinfu.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/depth.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/detail/pose_graph.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/dynafu.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/intrinsics.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/kinfu.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/large_kinfu.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/linemod.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/rgbd/volume.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_shape490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_shape490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape/emdL1.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape/hist_cost.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape/shape.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape/shape_distance.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/shape/shape_transformer.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_structured_light490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_structured_light490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/structured_light.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/structured_light/graycodepattern.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/structured_light/sinusoidalpattern.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/structured_light/structured_light.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_video490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_video490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video/background_segm.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video/detail/tracking.detail.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video/legacy/constants_c.h
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video/tracking.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/video/video.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_videostab490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_videostab490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/deblurring.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/fast_marching.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/fast_marching_inl.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/frame_source.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/global_motion.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/inpainting.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/log.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/motion_core.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/motion_stabilizing.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/optical_flow.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/outlier_rejection.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/ring_buffer.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/stabilizer.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/videostab/wobble_suppression.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_wechat_qrcode490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_wechat_qrcode490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/wechat_qrcode.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_xfeatures2d490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_xfeatures2d490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xfeatures2d.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xfeatures2d/cuda.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xfeatures2d/nonfree.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_ximgproc490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_ximgproc490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/brightedges.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/color_match.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/deriche_filter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/disparity_filter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/edge_drawing.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/edge_filter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/edgeboxes.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/edgepreserving_filter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/estimated_covariance.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/fast_hough_transform.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/fast_line_detector.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/find_ellipses.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/fourier_descriptors.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/lsc.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/paillou_filter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/peilin.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/radon_transform.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/ridgefilter.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/run_length_morphology.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/scansegment.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/seeds.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/segmentation.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/slic.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/sparse_match_interpolator.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/structured_edge_detection.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/ximgproc/weighted_median_filter.hpp
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_xobjdetect490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_xobjdetect490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/xobjdetect.hpp
C:/Users/Leonard/OpenCV/build/install/bin/opencv_waldboost_detector.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/lib/opencv_aruco490.lib
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_aruco490.dll
C:/Users/Leonard/OpenCV/build/install/include/opencv2/aruco.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/aruco/aruco_calib.hpp
C:/Users/Leonard/OpenCV/build/install/include/opencv2/aruco/charuco.hpp
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C:/Program Files/Python312/Lib/site-packages/cv2/videoio_registry/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/videostab/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/wechat_qrcode/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/xfeatures2d/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/ximgproc/segmentation/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/ximgproc/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/xphoto/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/init.pyi
C:/Program Files/Python312/Lib/site-packages/cv2/python-3.12/cv2.cp312-win_amd64.pyd
C:/Program Files/Python312/Lib/site-packages/cv2/config-3.12.py

lcumbridge · January 5, 2024, 4:26pm

3rd part of install manifest

C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_eye.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_eye_tree_eyeglasses.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalcatface.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalcatface_extended.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalface_alt.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalface_alt2.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalface_alt_tree.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_frontalface_default.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_fullbody.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_lefteye_2splits.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_license_plate_rus_16stages.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_lowerbody.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_profileface.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_righteye_2splits.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_russian_plate_number.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_smile.xml
C:/Users/Leonard/OpenCV/build/install/etc/haarcascades/haarcascade_upperbody.xml
C:/Users/Leonard/OpenCV/build/install/etc/lbpcascades/lbpcascade_frontalcatface.xml
C:/Users/Leonard/OpenCV/build/install/etc/lbpcascades/lbpcascade_frontalface.xml
C:/Users/Leonard/OpenCV/build/install/etc/lbpcascades/lbpcascade_frontalface_improved.xml
C:/Users/Leonard/OpenCV/build/install/etc/lbpcascades/lbpcascade_profileface.xml
C:/Users/Leonard/OpenCV/build/install/etc/lbpcascades/lbpcascade_silverware.xml
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_annotation.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_visualisation.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_interactive-calibration.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_version.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_version_win32.exe
C:/Users/Leonard/OpenCV/build/install/x64/vc17/bin/opencv_model_diagnostics.exe

lcumbridge · January 8, 2024, 3:41am

I have tried to uninstall Python 64 bit and replace with 32 bit binaries. I’ve tried installing with and w/o admin privileges. Ive moved the location of the build directory from a /user/… to c:.…

I tried to install on a different computer. All the same outcome. Missing dll

My machine is 64 bit Windows 10 uptodate with c++ redirect, media files, etc…

This is extraordinarily frustrating. Please advise. Tia,
L

cudawarped · January 8, 2024, 6:01am

Track down the missing dll and add it, see.

I would guess that you are at the very least missing the gstreamer dll so you would need to add that

import os
os.add_dll_directory("PATH_TO_GSTREAMER_BIN")
import cv2

lcumbridge · January 8, 2024, 2:25pm

Super Star!

You are a super star. Thank you. It worked.

L

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