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media-libs/opencv

A collection of algorithms and sample code for various computer vision problems

Screenshots

  • opencv-4.9.0
    ~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86
    debug doc +eigen gflags glog java non-free opencvapps +python test testprograms contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d dnnsamples examples +features2d opencl cuda cudnn video_cards_intel +ffmpeg gstreamer xine vaapi v4l gphoto2 ieee1394 gdal jasper jpeg jpeg2k openexr png quirc tesseract tiff webp gtk3 qt5 qt6 opengl vtk openmp tbb atlas lapack mkl cpu_flags_arm_neon cpu_flags_arm_vfpv3 cpu_flags_ppc_vsx cpu_flags_ppc_vsx3 cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_popcnt cpu_flags_x86_sse4_2 cpu_flags_x86_f16c cpu_flags_x86_fma3 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f java abi_x86_32 abi_x86_64 abi_x86_x32 abi_mips_n32 abi_mips_n64 abi_mips_o32 abi_s390_32 abi_s390_64 python_targets_python3_10 python_targets_python3_11 python_targets_python3_12 test

    View      Download      Browse     License: Apache-2.0   
    Overlay: gentoo
  • opencv-4.9.0
    ~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86
    contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d cuda debug dnnsamples download +eigen examples +features2d ffmpeg gdal gflags glog gphoto2 gstreamer gtk3 ieee1394 jpeg jpeg2k lapack lto opencl openexr opengl openmp opencvapps png +python qt5 qt6 tesseract testprograms threads tiff vaapi v4l vtk webp xine cpu_flags_arm_neon cpu_flags_arm_vfpv3 cpu_flags_ppc_vsx cpu_flags_ppc_vsx3 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_x86_f16c cpu_flags_x86_fma3 cpu_flags_x86_popcnt cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 java abi_x86_32 abi_x86_64 abi_x86_x32 abi_mips_n32 abi_mips_n64 abi_mips_o32 abi_s390_32 abi_s390_64 python_targets_python3_10 python_targets_python3_11 python_targets_python3_12

    View      Download      Browse     License: Apache-2.0   
    Overlay: Miezhiko
  • opencv-4.8.1-r1
    amd64 ~arm arm64 ~loong ~ppc ~ppc64 ~riscv x86
    contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d cuda cudnn debug dnnsamples +eigen examples +features2d ffmpeg gdal gflags glog gphoto2 gstreamer gtk3 ieee1394 jpeg jpeg2k lapack non-free opencl openexr opengl openmp opencvapps png +python qt5 qt6 tesseract testprograms tbb tiff vaapi v4l vtk webp xine video_cards_intel cpu_flags_arm_neon cpu_flags_arm_vfpv3 cpu_flags_ppc_vsx cpu_flags_ppc_vsx3 cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_popcnt cpu_flags_x86_sse4_2 cpu_flags_x86_f16c cpu_flags_x86_fma3 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f java abi_x86_32 abi_x86_64 abi_x86_x32 abi_mips_n32 abi_mips_n64 abi_mips_o32 abi_s390_32 abi_s390_64 python_targets_python3_10 python_targets_python3_11 python_targets_python3_12

    View      Download      Browse     License: Apache-2.0   
    Overlay: gentoo
  • opencv-4.8.1
    ~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86
    contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d cuda debug dnnsamples download +eigen examples +features2d ffmpeg gdal gflags glog gphoto2 gstreamer gtk3 ieee1394 jpeg jpeg2k lapack lto opencl openexr opengl openmp opencvapps png +python qt5 qt6 tesseract testprograms threads tiff vaapi v4l vtk webp xine cpu_flags_arm_neon cpu_flags_arm_vfpv3 cpu_flags_ppc_vsx cpu_flags_ppc_vsx3 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_x86_f16c cpu_flags_x86_fma3 cpu_flags_x86_popcnt cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 java abi_x86_32 abi_x86_64 abi_x86_x32 abi_mips_n32 abi_mips_n64 abi_mips_o32 abi_s390_32 abi_s390_64 python_targets_python3_10 python_targets_python3_11 python_targets_python3_12

    View      Download      Browse     License: Apache-2.0   
    Overlay: stuff
  • opencv-4.8.0-r1
    amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv x86
    contrib contribcvv contribdnn contribfreetype contribhdf contribovis contribsfm contribxfeatures2d cuda debug dnnsamples download +eigen examples +features2d ffmpeg gdal gflags glog gphoto2 gstreamer gtk3 ieee1394 jpeg jpeg2k lapack lto opencl openexr opengl openmp opencvapps png +python qt5 tesseract testprograms threads tiff vaapi v4l vtk webp xine cpu_flags_arm_neon cpu_flags_arm_vfpv3 cpu_flags_ppc_vsx cpu_flags_ppc_vsx3 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_x86_f16c cpu_flags_x86_fma3 cpu_flags_x86_popcnt cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 java abi_x86_32 abi_x86_64 abi_x86_x32 abi_mips_n32 abi_mips_n64 abi_mips_o32 abi_s390_32 abi_s390_64 python_targets_python3_10 python_targets_python3_11 python_targets_python3_12

    View      Download      Browse     License: Apache-2.0   
    Overlay: stuff

USE Flags

debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
doc
Global: Adds extra documentation (API, Javadoc, etc)
+eigen
* This flag is undocumented *
gflags
* This flag is undocumented *
glog
* This flag is undocumented *
java
Global: Adds support for Java
non-free
* This flag is undocumented *
opencvapps
* This flag is undocumented *
+python
* This flag is undocumented *
test
Global: Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
testprograms
* This flag is undocumented *
contrib
Global: Build additional contrib components
contribcvv
* This flag is undocumented *
contribdnn
* This flag is undocumented *
contribfreetype
* This flag is undocumented *
contribhdf
* This flag is undocumented *
contribovis
* This flag is undocumented *
contribsfm
* This flag is undocumented *
contribxfeatures2d
* This flag is undocumented *
dnnsamples
* This flag is undocumented *
examples
Global: Install examples, usually source code
+features2d
* This flag is undocumented *
opencl
Global: Build OpenCL binaries.
cuda
Global: Build CUDA binaries.
cudnn
* This flag is undocumented *
video_cards_intel
* This flag is undocumented *
+ffmpeg
* This flag is undocumented *
gstreamer
Global: Adds support for media-libs/gstreamer (Streaming media)
xine
Global: Add support for the XINE movie libraries
vaapi
Global: Enables VAAPI (Video Acceleration API) for hardware decoding
v4l
Global: Enables video4linux support
gphoto2
Global: Adds digital camera support
ieee1394
Global: Enable FireWire/iLink IEEE1394 support (dv, camera, ...)
gdal
Global: Include gdal and ogr support for format conversions.
jasper
* This flag is undocumented *
jpeg
Global: Adds JPEG image support
jpeg2k
Global: Support for JPEG 2000, a wavelet-based image compression format
openexr
Global: Support for the OpenEXR graphics file format
png
Global: Adds support for libpng (PNG images)
quirc
* This flag is undocumented *
tesseract
Global: Enable support for the tesseract OCR engine
tiff
Global: Adds support for the TIFF image format
webp
* This flag is undocumented *
gtk3
* This flag is undocumented *
qt5
* This flag is undocumented *
qt6
* This flag is undocumented *
opengl
Global: Adds support for OpenGL (3D graphics)
vtk
* This flag is undocumented *
openmp
Global: Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
tbb
Global: Enable multithreading with the Intel Threads Building Block (needs dev-cpp/tbb)
atlas
* This flag is undocumented *
lapack
Global: Adds support for the virtual/lapack numerical library
mkl
Global: Install the Intel Math Kernel Library
cpu_flags_arm_neon
* This flag is undocumented *
cpu_flags_arm_vfpv3
* This flag is undocumented *
cpu_flags_ppc_vsx
* This flag is undocumented *
cpu_flags_ppc_vsx3
* This flag is undocumented *
cpu_flags_x86_sse
* This flag is undocumented *
cpu_flags_x86_sse2
* This flag is undocumented *
cpu_flags_x86_sse3
* This flag is undocumented *
cpu_flags_x86_ssse3
* This flag is undocumented *
cpu_flags_x86_sse4_1
* This flag is undocumented *
cpu_flags_x86_popcnt
* This flag is undocumented *
cpu_flags_x86_sse4_2
* This flag is undocumented *
cpu_flags_x86_f16c
* This flag is undocumented *
cpu_flags_x86_fma3
* This flag is undocumented *
cpu_flags_x86_avx
* This flag is undocumented *
cpu_flags_x86_avx2
* This flag is undocumented *
cpu_flags_x86_avx512f
* This flag is undocumented *
abi_x86_32
* This flag is undocumented *
abi_x86_64
* This flag is undocumented *
abi_x86_x32
* This flag is undocumented *
abi_mips_n32
* This flag is undocumented *
abi_mips_n64
* This flag is undocumented *
abi_mips_o32
* This flag is undocumented *
abi_s390_32
* This flag is undocumented *
abi_s390_64
* This flag is undocumented *
python_targets_python3_10
* This flag is undocumented *
python_targets_python3_11
* This flag is undocumented *
python_targets_python3_12
* This flag is undocumented *
download
* This flag is undocumented *
ffmpeg
Global: Enable ffmpeg-based audio/video codec support
lto
Global: Add support for link-time optimizations (unsupported, use at your own risk).
threads
Global: Adds threads support for various packages. Usually pthreads