[[:OpenCV]]

#contents
*概要 [#e147def7]
-[[:OpenCV 4.0]]が2018-11-18にリリースされたので、[[Tinker Board]]でビルドしてみた
*前提準備 [#v78a5353]
-[[Tinker Board]]を参照
*今回のターゲット [#o9488cf3]
-Tinker Board
-OS:Debian Jessie 9.3
-CPU:Arm Cortex-A17 Quad core 1.8GHz
-OpenCV 4.0.0
-cmake 3.7.2
-gcc 6.3.0
*OpenCV の取得 [#c2ec82d1]
-gitでcloneして
-4.0.0をチェックアウトする
-パスは適宜合わせて
 ~$ time git clone git@github.com:opencv/opencv.git opencv-fork
 ~$ cd opencv-fork/
 ~/opencv-fork$ time git checkout -b Branch_4_0_0 4.0.0
 Switched to a new branch 'Branch_4_0_0'
-詳細は割愛
*OpenCV4.0.0のビルド [#x3c1033a]
-cmakeのfull logは[[こちら>https://gist.github.com/tomoaki0705/402372aafb4a6b3903fc647d7f071942#file-cmake-log]]
-make allのfull logは[[こちら>https://gist.github.com/tomoaki0705/402372aafb4a6b3903fc647d7f071942#file-make-log]]
**cmake [#q48809a6]
-[[ODROID-X2でOpenCV 3.1.0をビルド]]同様、out of source buildする 
 ~/opencv-fork$ mkdir build
 ~/opencv-fork$ cd build
 ~/opencv-fork/build$ time cmake -DCPU_BASELINE=NEON ..
 (中略)
 
 real    1m36.718s
 user    0m57.420s
 sys     0m10.430s
**make all [#w068237b]
-4コアをフルに使ったビルドする
 ~/opencv-fork/build$ time make -j 4 all 
 (中略)
 real   51m35.458s
 user   189m10.280s
 sys    6m52.080s
**make install [#p2e4bf90]
-割愛
*OpenCVビルド時のコンフィグなど [#s77cf998]
**cvconfig.h [#p440ce9e]
#geshi(c++){{
#ifndef OPENCV_CVCONFIG_H_INCLUDED
#define OPENCV_CVCONFIG_H_INCLUDED

/* OpenCV compiled as static or dynamic libs */
#define BUILD_SHARED_LIBS

/* OpenCV intrinsics optimized code */
#define CV_ENABLE_INTRINSICS

/* OpenCV additional optimized code */
/* #undef CV_DISABLE_OPTIMIZATION */

/* Compile for 'real' NVIDIA GPU architectures */
#define CUDA_ARCH_BIN ""

/* Create PTX or BIN for 1.0 compute capability */
/* #undef CUDA_ARCH_BIN_OR_PTX_10 */

/* NVIDIA GPU features are used */
#define CUDA_ARCH_FEATURES ""

/* Compile for 'virtual' NVIDIA PTX architectures */
#define CUDA_ARCH_PTX ""

/* AVFoundation video libraries */
/* #undef HAVE_AVFOUNDATION */

/* V4L2 capturing support */
#define HAVE_CAMV4L2

/* AMD's Basic Linear Algebra Subprograms Library*/
/* #undef HAVE_CLAMDBLAS */

/* AMD's OpenCL Fast Fourier Transform Library*/
/* #undef HAVE_CLAMDFFT */

/* Clp support */
/* #undef HAVE_CLP */

/* Cocoa API */
/* #undef HAVE_COCOA */

/* NVIDIA CUDA Basic Linear Algebra Subprograms (BLAS) API*/
/* #undef HAVE_CUBLAS */

/* NVIDIA CUDA Runtime API*/
/* #undef HAVE_CUDA */

/* NVIDIA CUDA Fast Fourier Transform (FFT) API*/
/* #undef HAVE_CUFFT */

/* IEEE1394 capturing support */
/* #undef HAVE_DC1394 */

/* IEEE1394 capturing support - libdc1394 v2.x */
/* #undef HAVE_DC1394_2 */

/* DirectX */
/* #undef HAVE_DIRECTX */
/* #undef HAVE_DIRECTX_NV12 */
/* #undef HAVE_D3D11 */
/* #undef HAVE_D3D10 */
/* #undef HAVE_D3D9 */

/* DirectShow Video Capture library */
/* #undef HAVE_DSHOW */

/* Eigen Matrix & Linear Algebra Library */
/* #undef HAVE_EIGEN */

/* FFMpeg video library */
/* #undef HAVE_FFMPEG */

/* Geospatial Data Abstraction Library */
/* #undef HAVE_GDAL */

/* GStreamer multimedia framework */
/* #undef HAVE_GSTREAMER */

/* GTK+ 2.0 Thread support */
#define HAVE_GTHREAD

/* GTK+ 2.x toolkit */
#define HAVE_GTK

/* Halide support */
/* #undef HAVE_HALIDE */

/* Vulkan support */
/* #undef HAVE_VULKAN */

/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1

/* Intel Perceptual Computing SDK library */
/* #undef HAVE_INTELPERC */

/* Intel Integrated Performance Primitives */
/* #undef HAVE_IPP */
/* #undef HAVE_IPP_ICV */
/* #undef HAVE_IPP_IW */
/* #undef HAVE_IPP_IW_LL */

/* JPEG-2000 codec */
#define HAVE_JASPER

/* IJG JPEG codec */
#define HAVE_JPEG

/* libpng/png.h needs to be included */
#define HAVE_LIBPNG_PNG_H

/* GDCM DICOM codec */
/* #undef HAVE_GDCM */

/* Microsoft Media Foundation Capture library */
/* #undef HAVE_MSMF */

/* NVIDIA Video Decoding API*/
/* #undef HAVE_NVCUVID */

/* NVIDIA Video Encoding API*/
/* #undef HAVE_NVCUVENC */

/* OpenCL Support */
#define HAVE_OPENCL
/* #undef HAVE_OPENCL_STATIC */
/* #undef HAVE_OPENCL_SVM */

/* OpenEXR codec */
#define HAVE_OPENEXR

/* OpenGL support*/
/* #undef HAVE_OPENGL */

/* OpenNI library */
/* #undef HAVE_OPENNI */

/* OpenNI library */
/* #undef HAVE_OPENNI2 */

/* librealsense library */
/* #undef HAVE_LIBREALSENSE */

/* PNG codec */
#define HAVE_PNG

/* Posix threads (pthreads) */
#define HAVE_PTHREAD

/* parallel_for with pthreads */
#define HAVE_PTHREADS_PF

/* Qt support */
/* #undef HAVE_QT */

/* Qt OpenGL support */
/* #undef HAVE_QT_OPENGL */

/* Intel Threading Building Blocks */
/* #undef HAVE_TBB */

/* Ste||ar Group High Performance ParallelX */
/* #undef HAVE_HPX */

/* TIFF codec */
#define HAVE_TIFF

/* V4L2 capturing support in videoio.h */
/* #undef HAVE_VIDEOIO */

/* Win32 UI */
/* #undef HAVE_WIN32UI */

/* XIMEA camera support */
/* #undef HAVE_XIMEA */

/* Xine video library */
/* #undef HAVE_XINE */

/* Define if your processor stores words with the most significant byte
   first (like Motorola and SPARC, unlike Intel and VAX). */
/* #undef WORDS_BIGENDIAN */

/* gPhoto2 library */
/* #undef HAVE_GPHOTO2 */

/* VA library (libva) */
/* #undef HAVE_VA */

/* Intel VA-API/OpenCL */
/* #undef HAVE_VA_INTEL */

/* Intel Media SDK */
/* #undef HAVE_MFX */

/* Lapack */
/* #undef HAVE_LAPACK */

/* Library was compiled with functions instrumentation */
/* #undef ENABLE_INSTRUMENTATION */

/* OpenVX */
/* #undef HAVE_OPENVX */

#if defined(HAVE_XINE)         || \
    defined(HAVE_GSTREAMER)    || \
    defined(HAVE_AVFOUNDATION) || \
    /*defined(HAVE_OPENNI)     || too specialized */ \
    defined(HAVE_FFMPEG)       || \
    defined(HAVE_MSMF)
#define HAVE_VIDEO_INPUT
#endif

#if /*defined(HAVE_XINE)       || */\
    defined(HAVE_GSTREAMER)    || \
    defined(HAVE_AVFOUNDATION) || \
    defined(HAVE_FFMPEG)       || \
    defined(HAVE_MSMF)
#define HAVE_VIDEO_OUTPUT
#endif

/* OpenCV trace utilities */
#define OPENCV_TRACE

/* Library QR-code decoding */
#define HAVE_QUIRC

#endif // OPENCV_CVCONFIG_H_INCLUDED
}}
**opencv_version -v [#r257c8da]
 General configuration for OpenCV 4.0.0 =====================================
   Version control:               4.0.0
 
   Platform:
     Timestamp:                   2018-11-19T01:35:31Z
     Host:                        Linux 4.4.71+ armv7l
     CMake:                       3.7.2
     CMake generator:             Unix Makefiles
     CMake build tool:            /usr/bin/make
     Configuration:               Release
 
   CPU/HW features:
     Baseline:
       requested:                 NEON
       disabled:                  VFPV3 NEON
 
   C/C++:
     Built as dynamic libs?:      YES
     C++ Compiler:                /usr/bin/c++  (ver 6.3.0)
     C++ flags (Release):         -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfp16-format=ieee -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
     C++ flags (Debug):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfp16-format=ieee -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
     C Compiler:                  /usr/bin/cc
     C flags (Release):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfp16-format=ieee -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
     C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfp16-format=ieee -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
     Linker flags (Release):
     Linker flags (Debug):
     ccache:                      YES
     Precompiled headers:         NO
     Extra dependencies:          dl m pthread rt
     3rdparty dependencies:
 
   OpenCV modules:
     To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc java_bindings_generator ml objdetect photo python_bindings_generator stitching ts video videoio
     Disabled:                    world
     Disabled by dependency:      -
     Unavailable:                 java js python2 python3
     Applications:                tests perf_tests apps
     Documentation:               NO
     Non-free algorithms:         NO
 
   GUI:
     GTK+:                        YES (ver 2.24.31)
       GThread :                  YES (ver 2.50.3)
       GtkGlExt:                  NO
     VTK support:                 NO
 
   Media I/O:
     ZLib:                        /usr/lib/arm-linux-gnueabihf/libz.so (ver 1.2.8)
     JPEG:                        libjpeg-turbo (ver 1.5.3-62)
     WEBP:                        build (ver encoder: 0x020e)
     PNG:                         /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.28)
     TIFF:                        build (ver 42 - 4.0.9)
     JPEG 2000:                   build (ver 1.900.1)
     OpenEXR:                     build (ver 1.7.1)
     HDR:                         YES
     SUNRASTER:                   YES
     PXM:                         YES
     PFM:                         YES
 
   Video I/O:
     DC1394:                      NO
     FFMPEG:                      NO
       avcodec:                   NO
       avformat:                  NO
       avutil:                    NO
       swscale:                   NO
       avresample:                NO
     GStreamer:                   NO
     v4l/v4l2:                    linux/videodev2.h
 
   Parallel framework:            pthreads
 
   Trace:                         YES (built-in)
 
   Other third-party libraries:
     Lapack:                      NO
     Eigen:                       NO
     Custom HAL:                  YES (carotene (ver 0.0.1))
     Protobuf:                    build (3.5.1)
 
   OpenCL:                        YES (no extra features)
     Include path:                /home/linaro/opencv-fork/3rdparty/include/opencl/1.2
     Link libraries:              Dynamic load
 
   Python (for build):            /usr/bin/python2.7
 
   Java:
     ant:                         NO
     JNI:                         NO
     Java wrappers:               NO
     Java tests:                  NO
 
   Install to:                    /usr/local
 -----------------------------------------------------------------
-うっかりNEONを有効にし忘れたので、あとでビルドしなおしである。
   CPU/HW features:
     Baseline:
       requested:                 NEON
       disabled:                  VFPV3 NEON
*ビルドされたライブラリや実行ファイル [#w41bf5c6]
-割愛

*関連ページ [#i53eaffe]
-[[:OpenCV]]
-[[:OpenCV 4.0]]
-[[Tinker Board]]
-[[Arm]]


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