2018.03.10 00:28:24
http://webnautes.tistory.com/916
https://www.pyimagesearch.com/2017/09/04/raspbian-stretch-install-opencv-3-python-on-your-raspberry-pi/
http://kkokkal.tistory.com/1304
https://raspberrypi.stackexchange.com/questions/69169/how-to-install-opencv-on-raspberry-pi-3-in-raspbian-jessie
https://qiita.com/nanbuwks/items/422eb405ceef84826ab4 <-- 이거 기준으로 확인중
raspbian-stretch 에 설치
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get install build-essential git cmake pkg-config
정지 영상 파일 입출력
$ sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
비디오 파일 입출력/스트리밍
$ sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev
$ sudo apt-get install libv4l-dev v4l-utils
$ sudo apt-get install libxvidcore-dev libx264-dev libxine2-dev
$ sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
OpenCV의 highgui 모듈에서 GTK를 사용하도록
$ sudo apt-get install libgtk2.0-dev
Opencv 최적화를 위한 라이브러리를 설치한다.
$ sudo apt-get install libatlas-base-dev gfortran libeigen3-dev
python3 설치
stretch에는 이미 최신 버전이 들어가 있다. (lite에는 없다)
$ sudo apt-get install python3-dev python3-pip
Opencv에서 매트릭스 연산을 위해 Numpy를 설치한다.
역시 최신으로 들어가 있다. (역시나 lite에는 없다)
$ sudo apt-get install python-numpy python3-numpy
$ sudo pip3 install numpy
opencv, opencv_contrib 다운로드
현재 최신 버전은 3.4.0
$ cd ~
$ git clone https://github.com/Itseez/opencv.git
$ cd opencv
$ git checkout 3.4.0
$ cd ..
$ git clone https://github.com/Itseez/opencv_contrib.git
$ cd opencv_contrib
$ git checkout 3.4.0
$ cd ..
빌드를 위해 디렉토리를 만든다.
$ cd opencv
$ mkdir build
$ cd build
cmake 구성
[stretch]
$ cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \
-D BUILD_EXAMPLES=ON ../
[stretch_lite]
// lite는 뭔가 많이 빠져 있어서 그런지 cmake에서 에러가 난다...
// 위에 필요 라이브러리를 모두 설치하고 (빼먹으면 안된다!!!!)
//
// cmake 구성에서 -D BUILD_opencv_python2=OFF 하지 않을거면
// pyhton 2.7도 설치해야한다!!!!
// $ sudo apt-get install python2.7-dev python-dev python-numpy
//
// full 컴파일 완료되었던 build(무려 5시간 걸려 만들었던거....)를 넣어주고
// 다시 cmake 해라.
중간에 다운로드 때문에 시간이 약간 걸린다.
-- General configuration for OpenCV 3.4.0 =====================================
-- Version control: 3.4.0
--
-- Extra modules:
-- Location (extra): /home/pi/opencv_contrib/modules
-- Version control (extra): 3.4.0
--
-- Platform:
-- Timestamp: 2018-03-10T03:14:53Z
-- Host: Linux 4.9.59-v7+ armv7l
-- CMake: 3.7.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: RELEASE
--
-- CPU/HW features:
-- Baseline:
-- requested: DETECT
-- disabled: VFPV3 NEON
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++11: 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 -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 -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: NO
-- Precompiled headers: YES
-- Extra dependencies: dl m pthread rt
-- 3rdparty dependencies:
--
-- OpenCV modules:
-- To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dpm face features2d flann freetype fuzzy highgui img_hash imgcodecs imgproc line_descriptor ml objdetect optflow phase_unwrapping photo plot python2 python3 python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
-- Disabled: js world
-- Disabled by dependency: -
-- Unavailable: cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv dnn_modern hdf java matlab ovis sfm viz
-- Applications: tests perf_tests examples 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: /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver )
-- WEBP: build (ver encoder: 0x020e)
-- PNG: /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.28)
-- TIFF: /usr/lib/arm-linux-gnueabihf/libtiff.so (ver 42 / 4.0.8)
-- JPEG 2000: /usr/lib/arm-linux-gnueabihf/libjasper.so (ver 1.900.1)
-- OpenEXR: build (ver 1.7.1)
--
-- Video I/O:
-- DC1394: NO
-- FFMPEG: YES
-- avcodec: YES (ver 57.64.101)
-- avformat: YES (ver 57.56.101)
-- avutil: YES (ver 55.34.101)
-- swscale: YES (ver 4.2.100)
-- avresample: NO
-- GStreamer:
-- base: YES (ver 1.10.4)
-- video: YES (ver 1.10.4)
-- app: YES (ver 1.10.4)
-- riff: YES (ver 1.10.4)
-- pbutils: YES (ver 1.10.4)
-- libv4l/libv4l2: NO
-- v4l/v4l2: linux/videodev2.h
-- gPhoto2: NO
--
-- Parallel framework: pthreads
--
-- Trace: YES (built-in)
--
-- Other third-party libraries:
-- Lapack: NO
-- Eigen: YES (ver 3.3.2)
-- Custom HAL: YES (carotene (ver 0.0.1))
--
-- NVIDIA CUDA: NO
--
-- OpenCL: YES (no extra features)
-- Include path: /home/pi/opencv/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 2:
-- Interpreter: /usr/bin/python2.7 (ver 2.7.13)
-- Libraries: /usr/lib/arm-linux-gnueabihf/libpython2.7.so (ver 2.7.13)
-- numpy: /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.12.1)
-- packages path: lib/python2.7/dist-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.5.3)
-- Libraries: /usr/lib/arm-linux-gnueabihf/libpython3.5m.so (ver 3.5.3)
-- numpy: /usr/lib/python3/dist-packages/numpy/core/include (ver 1.12.1)
-- packages path: lib/python3.5/dist-packages
--
-- Python (for build): /usr/bin/python2.7
--
-- Java:
-- ant: NO
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Matlab: NO
--
-- Install to: /usr/local
-- -----------------------------------------------------------------
--
-- Configuring done
-- Generating done
-- Build files have been written to: /home/pi/opencv/build
이제 빌드
// j옵션은 병열로 처리하도록 한다. 그냥 j옵션 쓰지않는다. 좀 더 늦어지겠지만 중간에 뻗지는 않는다.
이는 stretch-lite에서 시험해봤다.
// 이게 메모리 어쩌고 확장하고 하면 된다던데 나중에....
// https://www.pyimagesearch.com/2017/09/04/raspbian-stretch-install-opencv-3-python-on-your-raspberry-pi/
// 위 링크에 Configure your swap space size before compiling 참고
라즈베리파이의 코어 네개 모두 사용하여 컴파일하려면 -j4를 쓰면되나
컴파일 하는 도중 메모리 문제 때문에 행이 걸리는 현상이 발생한다.
이를 피하기 위해 swap 크기를 변경해준다.
/etc/dphys-swapfile 을 열어 CONF_SWAPSIZE 를 1024로 변경해준다.
$ sudo vi /etc/dphys-swapfile
# set size to absolute value, leaving empty (default) then uses computed value
# you most likely don't want this, unless you have an special disk situation
CONF_SWAPSIZE=100
디폴트로 100 MB로 되어 있을 것이다.
이를 주석처리하고 1024 MB 로 변경한다.
#CONF_SWAPSIZE=100
CONF_SWAPSIZE=1024
새로운 swap 을 활성화하기 위해 swap 서비스를 리스타트한다.
$ sudo /etc/init.d/dphys-swapfile stop
$ sudo /etc/init.d/dphys-swapfile start
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
컴파일 후 반드시 원래대로 돌려야한다.
안그러면.... SD카드 오래 못쓴다.....
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// 12:21 시작
$ make
15:12 32%
17:28 62%
20:37 100% ...
풀로하니까 더럽게 오래 걸리네 5시간?!?!?!?!
이제 설치...
$ sudo make install
$ sudo ldconfig
설치 확인
$ python3
> import cv2
> cv2.__version__
