Build OpenCV 4.5.2 with freetype library

Hi dear developers!!! I need some help with building the OpenCV 4.5.2 with CMake and freetype lib enabled. I add the extra_module_pass and put the contrib modules inside, everything configures and builds good, except the freetype library, i cant find it in the install folder (not in includes not in libs) it seems like CMake doesnt build it at all.

Also i tried to turno ON WITH_FREETYPE flag, it doesnt help!!!

Please give me a hand with a problem

  • did you install freetype and harfbuzz dependancies ?
  • yes, you need WITH_FREETYPE=ON
  • please show the complete cmake console output (rather long, but it has hints)
  • make sure, you use exactly the same version for both opencv main and contrib repos (if you want to use 4.5.2, check out the 4.5.2 branch in contrib, too !)
  • please also see the related answer here
1 Like

Thank you for a quick reply!

  1. I installed freetype and harfbuzz using vcpkg and i don’t know how to link them to CMake during the OpenCV configuration and generation. Could you please tell in more detailes how to link freetype and harfbuzz to the cmake?

  2. I use the same versions of OpenCV master branch and contrib brach (4.5.3) , sorry i wrote 4.5.2 before;

  3. Here is the cmake console:

Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19043.
Detected processor: AMD64
Found PythonInterp: C:/Users/User/AppData/Local/Programs/Python/Python39/python.exe (found suitable version "3.9.6", minimum required is "2.7") 
libjpeg-turbo: VERSION = 2.1.0, BUILD = opencv-4.5.3-dev-libjpeg-turbo
Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
OpenJPEG: VERSION = 2.4.0, BUILD = opencv-4.5.3-dev-openjp2-2.4.0
OpenJPEG libraries will be built from sources: libopenjp2 (version "2.4.0")
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
OpenCV Python: during development append to PYTHONPATH: D:/build/opencv_453/build/python_loader
Module opencv_alphamat disabled because the following dependencies are not found: Eigen
freetype2:   NO
harfbuzz:    NO
Julia not found. Not compiling Julia Bindings. 
CMake Warning (dev) at extramodules/modules/matlab/cmake/init.cmake:24 (set):
  Cannot set "DOXYGEN_BLACKLIST": current scope has no parent.
Call Stack (most recent call first):
  cmake/OpenCVModule.cmake:298 (include)
  cmake/OpenCVModule.cmake:364 (_add_modules_1)
  cmake/OpenCVModule.cmake:385 (ocv_glob_modules)
  CMakeLists.txt:917 (ocv_register_modules)
This warning is for project developers.  Use -Wno-dev to suppress it.

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
Module opencv_python3 disabled because opencv_python_bindings_generator dependency can't be resolved!
Allocator metrics storage type: 'long long'
Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': D:/build/opencv_453/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
opencv_dnn: filter out cuda4dnn source code
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.rvv.cpp
wechat_qrcode: Download: detect.caffemodel
wechat_qrcode: Download: detect.prototxt
wechat_qrcode: Download: sr.caffemodel
wechat_qrcode: Download: sr.prototxt
highgui: using builtin backend: WIN32UI
rgbd: Eigen support is disabled. Eigen is Required for Posegraph optimization
xfeatures2d/boostdesc: Download: boostdesc_bgm.i
xfeatures2d/boostdesc: Download: boostdesc_bgm_bi.i
xfeatures2d/boostdesc: Download: boostdesc_bgm_hd.i
xfeatures2d/boostdesc: Download: boostdesc_binboost_064.i
xfeatures2d/boostdesc: Download: boostdesc_binboost_128.i
xfeatures2d/boostdesc: Download: boostdesc_binboost_256.i
xfeatures2d/boostdesc: Download: boostdesc_lbgm.i
xfeatures2d/vgg: Download: vgg_generated_48.i
xfeatures2d/vgg: Download: vgg_generated_64.i
xfeatures2d/vgg: Download: vgg_generated_80.i
xfeatures2d/vgg: Download: vgg_generated_120.i
data: Download: face_landmark_model.dat
CMake Warning at cmake/OpenCVGenSetupVars.cmake:54 (message):
  CONFIGURATION IS NOT SUPPORTED: validate setupvars script in install
Call Stack (most recent call first):
  CMakeLists.txt:1025 (include)

General configuration for OpenCV 4.5.3-dev =====================================
  Version control:               unknown

  Extra modules:
    Location (extra):            D:/build/opencv_453/extramodules/modules
    Version control (extra):     unknown

    Timestamp:                   2021-08-18T11:23:04Z
    Host:                        Windows 10.0.19043 AMD64
    CMake:                       3.21.1
    CMake generator:             Visual Studio 16 2019
    CMake build tool:            C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/MSBuild/Current/Bin/MSBuild.exe
    MSVC:                        1929
    Configuration:               Debug Release

  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 (15 files):         + SSSE3 SSE4_1
      SSE4_2 (1 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (0 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (4 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (29 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
      AVX512_SKX (4 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

    Built as dynamic libs?:      NO
    C++ standard:                11
    C++ Compiler:                C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe  (ver 19.29.30133.0)
    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     /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP  /MT /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     /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP  /MTd /Zi /Ob0 /Od /RTC1 
    C Compiler:                  C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/VC/Tools/MSVC/14.29.30133/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:precise     /MP   /MT /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     /MP /MTd /Zi /Ob0 /Od /RTC1 
    Linker flags (Release):      /machine:x64  /NODEFAULTLIB:atlthunk.lib /INCREMENTAL:NO  /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:libcpmtd.lib /NODEFAULTLIB:msvcrtd.lib
    Linker flags (Debug):        /machine:x64  /NODEFAULTLIB:atlthunk.lib /debug /INCREMENTAL  /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:msvcrt.lib
    ccache:                      NO
    Precompiled headers:         NO
    Extra dependencies:          wsock32 comctl32 gdi32 ole32 setupapi ws2_32
    3rdparty dependencies:       libprotobuf ade ittnotify libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf zlib quirc

  OpenCV modules:
    To be built:                 aruco barcode 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 line_descriptor mcc 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 wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
    Disabled:                    java_bindings_generator python_bindings_generator python_tests world
    Disabled by dependency:      python3
    Unavailable:                 alphamat cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv freetype hdf java julia matlab ovis python2 sfm viz
    Applications:                perf_tests
    Documentation:               NO
    Non-free algorithms:         NO

  Windows RT support:            NO

  GUI:                           WIN32UI
    Win32 UI:                    YES
    VTK support:                 NO

  Media I/O: 
    ZLib:                        build (ver 1.2.11)
    JPEG:                        build-libjpeg-turbo (ver 2.1.0-62)
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         build (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.2.0)
    JPEG 2000:                   build (ver 2.4.0)
    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
    Media Foundation:            YES
      DXVA:                      YES

  Parallel framework:            Concurrency

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (NVD3D11)
    Include path:                D:/build/opencv_453/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 C:/Users/User/AppData/Local/Programs/Python/Python39/python.exe (ver 3.9.6)
    Libraries:                   NO
    numpy:                       C:/Users/User/AppData/Local/Programs/Python/Python39/lib/site-packages/numpy/core/include (ver 1.21.2)
    install path:                -

  Python (for build):            C:/Users/User/AppData/Local/Programs/Python/Python39/python.exe

  Install to:                    D:/build/opencv_453/build/install

Configuring done
Generating done

Also check this branch, it doesnt help me! I cant find a solution

sorry, cant help any further ;(

but note, that upcoming opencv5 will have builtin support for true-type fonts
(so this might no more be nessecary)

Thank you anyway! Don’t you know the release date?

idk, sorry. (christmas ?)

but here’s the resp. pr

Does it mean it is already done or I misunderstood something? I mean the link you provided

it is already done in another branch (5.0 (aka ‘next’), not 4.5.3)
you can look at it here

It sounds great!!! Don’t you know how to use it? I mean is there any code example how to use new feture with truetype?

Sorry for my infinite questions