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android / platform / external / libxcam / refs/heads/main
commitda20f7a672570f1f9b4841a8c5fef750a21d0002[log] [tgz]
authorElliott Hughes <enh@google.com>Thu Nov 14 16:21:12 2019 +0000
committerGerrit Code Review <noreply-gerritcodereview@google.com>Thu Nov 14 16:21:12 2019 +0000
tree95bf573576308a879e1fb84e1ee46e52ed7541e4
parent0940eea50f612285288f22259443410aa5052e3c [diff]
parent56938b347cb79e785d55b35bf6fe6ebd52188b36 [diff]
Merge "Disable the build and transfer ownership to the janitors."
tree: 95bf573576308a879e1fb84e1ee46e52ed7541e4
  1. capi/
  2. doc/
  3. m4/
  4. modules/
  5. pkgconfig/
  6. plugins/
  7. shaders/
  8. tests/
  9. tools/
  10. wrapper/
  11. xcore/
  12. .gitignore
  13. AUTHORS
  14. autogen.sh
  15. ChangeLog
  16. code_style.sh
  17. configure.ac
  18. COPYING
  19. LICENSE
  20. Makefile.am
  21. METADATA
  22. NEWS
  23. NOTICE
  24. OWNERS
  25. README.md
README.md

libXCam

Copyright (C) 2014-2019 Intel Corporation

libxcam core source code under the terms of Apache License, Version 2.0

Description:

libXCam is a project for extended camera features and focus on image quality improvement and video analysis. There are lots features supported in image pre-processing, image post-processing and smart analysis. This library makes GPU/CPU/ISP working together to improve image quality. OpenCL is used to improve performance in different platforms.

Features:

  • Image processing features
    • Advanced features
      • Automotive surround view(360) stitching (OpenCL/CPU/GLES)
        • Support bowl view 3D model stitching by 4 video input.
        • Enable geometry remap for WFoV camera calibration(intrinsic and extrinsic data).
        • Quality and performance improved (OpenCL/CPU/GLES).
        • CPU version upstreamed into AOSP for automotive surround view.
        • Enable Vulkan to improve performance.
      • 360 video stitching (Equirectangular mode via OpenCL)
        • Support 2-fisheye (>180 degree) video stream stitching.
        • Performance and quality improved.
      • DNN inference framework
        • Support pedestrian and vehicle detection.
      • Digital Video Stabilization
        • OpenCV feature-matched based video stabilization.
        • gyroscope 3-DoF (orientation) based video stabilization.
      • Blender: multi-band blender (OpenCL/CPU/GLES)
      • Noise reduction (OpenCL)
        • adaptive NR based on wavelet-haar and Bayersian shrinkage.
        • 3D-NR with inter-block and intra-block reference.
        • wavelet-hat NR (obsolete).
      • Wide dynamic range (WDR) (OpenCL)
        • histogram adjustment tone-mapping.
        • gaussian-based tone-mapping (obsolete).
      • Fog removal: retinex and dark channel prior algorithm (OpenCL)
        • dark channel prior algorithm based defog.
        • multi-scale retinex based defog (obsolete).
    • Basic pipeline from bayer to YUV/RGB format (OpenCL / AtomISP)
      • Gamma correction, MACC, color space, demosaicing, simple bilateral noise reduction, edge enhancement and temporal noise reduction.
    • 3A features
      • Auto whitebalance, auto exposure, auto focus, black level correction, color correction, 3a-statistics calculation.
  • Support 3rd party 3A lib which can be loaded dynamically
    • hybrid 3a plugin.
  • Support 3a analysis tuning framework for different features
  • Support smart analysis framework
    • Face detection interface/plugin.
  • Enable gstreamer plugin
    • xcamsrc, capture from usb/isp camera, process 3a/basic/advanced features.
    • xcamfilter, improve image quality by advanced features and smart analysis.

Prerequisite:

  • install gcc/g++, automake, autoconf, libtool, gawk, pkg-config
  • Linux kernel > 3.10
  • install ocl-icd-dev, ocl-icd-opencl-dev
  • If --enable-gst, need install libgstreamer1.0-dev, libgstreamer-plugins-base1.0-dev
  • If --enable-aiq, need get ia_imaging lib which we don't support
  • If --enable-libcl, need compile OpenCL driver
  • If --enable-opencv, suggest OpenCV versions [3.0.0 - 3.4.3] (or: OpenCV Wiki)
  • If --enable-render, need compile OpenSceneGraph library with configure option “-DOSG_WINDOWING_SYSTEM=X11”
  • If --enable-gles, need to install Mesa3D library
  • If --enable-vulkan, need to install Mesa3D library
  • If --enable-dnn, need to install OpenVino SDK

Building and installing:

  • Environment variable settings
    For different --prefix options, the environment variables may be different. Please set the environment variable according to the actual situation.
    --prefix=/usr/local:

    export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH
export GST_PLUGIN_PATH=/usr/local/lib/gstreamer-1.0:$GST_PLUGIN_PATH

    --prefix=/usr:

    export LD_LIBRARY_PATH=/usr/lib/:$LD_LIBRARY_PATH
export GST_PLUGIN_PATH=/usr/lib/gstreamer-1.0:$GST_PLUGIN_PATH

  • $ ./autogen.sh [options]

    --prefix=PREFIX         install architecture-independent files in PREFIX [default=/usr/local]
--enable-debug          enable debug, [default=no]
--enable-profiling      enable profiling, [default=no]
--enable-drm            enable drm buffer, [default=no]
--enable-aiq            enable Aiq 3A algorithm build, [default=no]
--enable-gst            enable gstreamer plugin build, [default=no]
--enable-libcl          enable libcl image processor, [default=yes]
--enable-opencv         enable opencv library, [default=no]
--enable-capi           enable libxcam-capi library, [default=no]
--enable-docs           build Doxygen documentation [default=no]
--enable-3alib          enable 3A lib build, [default=no]
--enable-smartlib       enable smart analysis lib build, [default=no]
--enable-gles           enable gles, [default=no]
--enable-vulkan         enable vulkan, [default=no]
--enable-render         enable 3D texture render, [default=no]
--enable-dnn            enable dnn inference, [default=no]

    For example:

    $ ./autogen.sh --prefix=/usr --enable-gst --enable-libcl --enable-opencv \
  --enable-smartlib --enable-profiling --enable-gles --enable-render --enable-dnn

  • $ make

  • $ sudo make install

Testing:

  • For detailed test cases, please go to tests page

Reporting Bugs:

  • Bugs or suggestions can be reported on the github issues page
  • Security issues, please send email to wei.zong@intel.com directly

Mailing list

Maintainer:

Contributors: (orders by first name)