/libxcam

libXCam is a project for extended camera(not limited in 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.

Primary LanguageC++OtherNOASSERTION

libXCam

Copyright (C) 2014-2017 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.
  • Basic features Gamma correction, MACC, color space, demosaicing, noise reduction, edge enhancement. - Advanced features
    • Noise reduction: simple bilateral NR, temporal NR, wavelet NR, adaptive NR with Bayesian shrinkage, 3D-NR.
    • WDR: gaussian-based tone-mapping, histogram adjustment tone-mapping
    • Fog removal: retinex and dark channel prior algorithm.
    • Blender: multi-band blender and fisheye geometry map correction.
    • Image stiching: feature detect and match to generate 360 degree panorama photography by stitching multiple neighbor images
    • DVS: digital video stabilization based on feature detect, optical flow and motion model estimation.
    • 3A features Auto whitebalance, auto exposure, auto focus, black level correction, color correction, 3a-statistics calculation.
  • Capture features support memory type of mmap and dma buffer.
  • Support 3rd party 3A lib which can be loaded dynamically.
    • hybrid 3a plugin
  • Image processing based on both ISP and Open CL.
  • Support 3a analysis tuning framework for different features
  • Support smart analysis framework
    • Face detection interface/plugin
  • Support as gstreamer plugin
    • xcamsrc, capture from usb/isp camera, process 3a/basic/advanced features.
    • xcamfilter, improve image quality by advanced features and smart analysis.

Prerequisite:

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=yes]
--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-docs           build Doxygen documentation [default=no]
--enable-3alib          enable 3A lib build, [default=no]
--enable-smartlib       enable smart analysis lib build, [default=no]

    For example:

    $ ./autogen.sh --prefix=/usr --enable-3alib --enable-aiq --enable-gst --enable-drm \
  --enable-libcl --enable-opencv --enable-profiling --enable-smartlib

  • $ make

  • $ sudo make install

Testing:

Reporting Bugs: