[Raspberry Pi] OpenCV 설치 Case2

앎/raspberry pi

[Raspberry Pi] OpenCV 설치 Case2

후니아부지 2018. 3. 10. 18:02

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__