In order to start image processing and machine learning using cameras and detection devices with Raspberry Pi and python, I will summarize how to build a stable environment through trial and error.
Since my Raspberry Pi is Pi2B, I use a USB-connected wi-fi module.
Prepare the basic environment on the premise that a wired LAN connection is possible.
sudo dpkg-reconfigure locales
Select the following in the CUI and ** OK **.
sudo apt-get install ttf-kochi-gothic xfonts-intl-japanese xfonts-intl-japanese-big xfonts-kaname
sudo apt-get install uim uim-mozc
ClamAV Antivirus software ClamAV that also supports raspbian. You need to run it with cron to make the scan automatic.
sudo apt-get install clamav clamdscan
I like emacs, so install it.
sudo apt-get install emacs
** pi ** Users are concerned about security, so create a new user for development. Enter your username in ** NAME **.
sudo adduser NAME
sudo gpasswd -a NAME sudo
sudo usermod -aG audio,video,plugdev,input,netdev,spi,i2c,gpio,dialout,cdrom NAME
You can do it with raspi-config, but this is a reference when you do it with fdisk. Eliminates the narrow effective area even when using a large-capacity SD card.
df -kh
sudo fdisk /dev/mmcblk0
p
d
2
p
n
p
2
w
sudo reboot
sudo resize2fs /dev/mmcblk0p2
Specify the start address of the second partition displayed by the first p, and do not enter anything. (OK by default)
NTP Time adjustment.
sudo apt-get install ntp
sudo emacs /etc/ntp.conf
Edit /etc/ntp.conf and change to Japanese NTP server.
/etc/ntp.conf
...
...
#server 0.debian.pool.ntp.org iburst //Comment
#server 1.debian.pool.ntp.org iburst //Comment
#server 2.debian.pool.ntp.org iburst //Comment
#server 3.debian.pool.ntp.org iburst //Comment
server ntp1.jst.mfeed.ad.jp
server ntp2.jst.mfeed.ad.jp
server ntp3.jst.mfeed.ad.jp
...
...
sudo service ntp restart
ntpq -p
rpi-clone SD card backup command rpi-clone. It is possible to clone to SD cards with different capacities!
git clone https://github.com/billw2/rpi-clone.git
cd rpi-clone
The best procedure is to look at the readme, but it's a memorandum.
Insert the card reader into the USB port, insert the SD card, and check the device name with fdisk.
sudo fdisk -l
Execute the clone command, answer the settings interactively and execute it, and after a while it is completed.
sudo ./rpi-clone sda -f
If you create a backup script like the one below, you can manage when you cloned and what you typed in the log text.
mkclone.scr
#!/bin/sh
dnow=`date +%Y%m%d-%H%M%S`
sudo ./rpi-clone sda -f | tee mkclone_${dnow}.log
echo '## Written install log to "mkclone_${dnow}.log"'
wi-fi For ** SSID ** and ** PWD **, enter the one at home to generate encrypted information.
sudo sh -c 'wpa_passphrase SSID PWD >> /etc/wpa_supplicant/wpa_supplicant.conf'
cd /etc/wpa_supplicant/
sudo cp -p wpa_supplicant.conf wpa_supplicant.conf.ORG
sudo emacs wpa_supplicant.conf
Edit /etc/wpa_supplicant/wpa_supplicant.conf.
/etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="SSID"
psk=???????????????????????????????????????????????????????????????
}
You can use it by restarting.
sudo /etc/init.d/networking restart
Settings when you don't like DHCP. The IP address is an example, and it is fixed to ** 192.168.1.3 **.
cd /etc/network/
sudo cp -p interfaces interfaces.ORG
sudo emacs interfaces
Edit / etc / network / interfaces.
/etc/network/interfaces
source-directory /etc/network/interfaces.d
auto lo
iface lo inet loopback
iface eth0 inet manual
allow-hotplug wlan0
#iface wlan0 inet manual
iface wlan0 inet static
address 192.168.1.3
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
dns-nameservers 192.168.1.1
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
allow-hotplug wlan1
iface wlan1 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
** dns-nameservers 192.168.1.1 <= Without this you will not be able to access externally **
If you restart, it will become a fixed IP. Check with ʻifconfig`.
sudo /etc/init.d/networking restart
http For the time being, finish up to the LAMP server.
sudo apt-get install apache2 apache2-utils
mysql For the time being, finish up to the LAMP server.
sudo apt-get install mysql-server libmysqlclient-dev
PHP For the time being, finish up to the LAMP server.
sudo apt-get install php5 phpmyadmin
samba Since Raspberry Pi is basically accessed remotely, make it possible to read and write files from windows.
sudo apt-get install samba
sudo emacs /etc/samba/smb.conf
Edit /etc/samba/smb.conf.
/etc/samba/smb.conf
...
...
[global]workgroup = YourWorkGrp
...
...
[homes]
browseable = no
read only = no
create mask = 0640
directory mask = 0750
...
...
Enter the pi user or newly created user in ** NAME **.
sudo smbpasswd -a NAME
sudo /etc/init.d/samba start
ftp Basically samba and rcp, but also include ftp. Enter the pi user or newly created user in ** NAME **.
sudo apt-get install pure-ftpd
sudo groupadd ftpgroup
sudo mkdir /home/NAME/FTP
sudo useradd ftpuser -g ftpgroup -s /sbin/nologin -d /dev/null
sudo chown -R ftpuser:ftpgroup /home/NAME/FTP
sudo pure-pw useradd upload -u ftpuser -g ftpgroup -d /home/NAME/FTP -m
sudo ln -s /etc/pure-ftpd/conf/PureDB /etc/pure-ftpd/auth/60puredb
VNC I don't use it much because it will be heavy, but I will put it in for the time being.
sudo apt-get upgrade realvnc-vnc-server realvnc-vnc-viewer
start VNC service sudo systemctl start vncserver-x11-serviced.service sudo systemctl enable vncserver-x11-serviced.service
stop VNC service sudo systemctl stop vncserver-x11-serviced.service sudo systemctl disable vncserver-x11-serviced.service
IoT devices are used for I2C and SPI connections.
I2C If you can't do this, you can't talk.
sudo apt-get install i2c-tools python-smbus
fritzing God software fritzing for creating connection diagrams. I don't use it on Raspberry Pi, but I confirmed that it can be installed.
sudo apt-get inatall fritzing
The development language basically uses python3.
subversion Familiar configuration management software. Maybe git nowadays. .. ..
sudo apt-get install subversion
doxygen Documentation software.
sudo apt-get install doxygen
python Python will be the main development language.
sudo apt-get install python-pip python-dev
sudo apt-get install python-scipy
sudo apt-get install python-matplotlib
sudo apt-get install libopencv-dev python-opencv
sudo apt-get install python-opengl
I will delete it later, but check the version of opencv to check the environment.
python -c "import cv2.cv as cv; print(cv.__version__)"
virtualenv Switch environment of python. I've included it, but I haven't used it yet, so typing python by default results in python2. .. ..
sudo pip install virtualenv virtualenvwrapper
sudo rm -rf ~/.cache/pip
Edit ~ / .profile.
emacs ~/.profile
~/.profile
...
...
# virtualenv and virtualenvwrapper
export WORKON_HOME=$HOME/.virtualenvs
source /usr/local/bin/virtualenvwrapper.sh
Manipulate .profile to reflect.
source ~/.profile
make "cv" workspace
mkvirtualenv cv -p python3
source ~/.profile
workon cv
picamera Required when using picamera.
sudo apt-get install python-picamera python3-picamera
sudo apt-get install python-picamera-docs
twitter Twitter is one of the leading candidates for IoT output destinations. Put the library so that you can throw information from python. There is a lot, but I chose the first twython.
sudo pip install twython
sudo pip3 install twython
sudo pip install feedparser
sudo pip3 install feedparser
cffi Interface library cffi for calling C functions from python. You can do it with ctypes, but here's a clean description.
sudo apt-get install libffi-dev
sudo pip install cffi
sudo pip3 install cffi
sudo pip3 install smbus
requests python's HTTP library [requests] link-01. Even when accessing the cloud, I want to write code in a general-purpose library as much as possible.
pip3 install requests
pip install requests
java I think I'll use it for something, so just in case.
sudo apt-get install oracle-java7-jdk
opencv3 The latest opencv is compiled and installed by yourself. Currently it worked up to 3.1.0, but 3.2.0 was NG.
sudo apt-get update
sudo apt-get upgrade
Remove default (old) OpenCV
sudo apt-get remove libopencv*
sudo apt-get autoremove
Install OpenCV 3.1.0
sudo apt-get install build-essential cmake cmake-curses-gui pkg-config
sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev libavcodec-dev libavformat-dev libswscale-dev libeigen3-dev libxvidcore-dev libx264-dev libgtk2.0-dev
sudo apt-get -y install libv4l-dev v4l-utils
sudo apt-get install libatlas-base-dev gfortran
sudo apt-get install python3-dev python3-numpy
cd ~/download
wget -O opencv-3.1.0.zip https://github.com/Itseez/opencv/archive/3.1.0.zip
wget -O opencv-3.1.0_contrib.zip https://github.com/opencv/opencv_contrib/archive/3.1.0.zip
unzip opencv-3.1.0.zip
unzip opencv-3.1.0_contrib.zip
cd opencv-3.1.0
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D OPENCV_EXTRA_MODULES_PATH=~/download/opencv_contrib-3.1.0/modules \
-D BUILD_EXAMPLES=ON ..
make
sudo make install
sudo ldconfig
python3 -c "import cv2 as cv; print(cv.\_\_version\_\_)"
imagemagick Image processing, simple image viewer.
sudo apt-get install imagemagick
Check the operation with the following command.
convert raspberrypi.png -resize 128x64 -gravity center -background black -extent 128x64 raspberrypi.ppm
movie tools An alternative to ffmpeg.
ffmpeg / avconv / mencoder all replaced. libav-tools and mpv are the updated packages in Jessie: https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=123442
sudo apt-get install libav-tools
sudo apt-get install openshot
tesseract-ocr + pyocr OCR software tesseract-ocr that also supports Japanese. Select pyocr as the wrapper to call from python.
apt-get install tesseract-ocr libtesseract-dev libleptonica-dev
tesseract -v
wget https://sourceforge.net/projects/tesseract-ocr-alt/files/tesseract-ocr-3.02.jpn.tar.gz
tar xvfz tesseract-ocr-3.02.jpn.tar.gz
cd tesseract-ocr/tessdata/
sudo cp jpn.traineddata /usr/share/tesseract-ocr/tessdata/
sudo pip install pyocr
sudo pip3 install pyocr
When you enter the image file ** IMG ** as shown below, the characters are parsed and saved in a text file.
python
tesseract IMG out -l jpn
cat out.txt
As with images, audio is important.
espeak Speak command. Only English is supported. .. ..
sudo apt-get install espeak
sudo apt-get install python-espeak
sudo apt-get install python3-espeak
You can speak Japanese like this. .. ..
espeak -g 20 -w a.wav "anata ga ill"
espeak -g 20 -w w.wav "watashi ga ill"
OpenJtalk Can speak Japanese OpenJTalk. English words become alphabet reading. .. ..
sudo apt-get install open-jtalk open-jtalk-mecab-naist-jdic hts-voice-nitech-jp-atr503-m001
wget https://sourceforge.net/projects/mmdagent/files/MMDAgent_Example/MMDAgent_Example-1.6/MMDAgent_Example-1.6.zip/download -O MMDAgent_Example-1.6.zip
unzip MMDAgent_Example-1.6.zip
sudo cp -r MMDAgent_Example-1.6/Voice/mei/ /usr/share/hts-voice
mplayer It's not a development environment, but I want to develop while listening to Internet radio on Raspberry Pi.
sudo apt-get install mplayer
mplayer -playlist shoutcast_???.pls
Internet radio that can get playlists (.pls) is, for example, shoutcast.
Areas where you want to deepen your understanding by linking with IoT.
TensorFlow Check tensorflow-on-raspberry-pi for the latest version. This is for 1.0.0.
For Python 2.7
wget https://github.com/samjabrahams/tensorflow-on-raspberry-pi/releases/download/v1.0.0/tensorflow-1.0.0-cp27-none-linux_armv7l.whl
sudo pip install tensorflow-1.0.0-cp27-none-linux_armv7l.whl
sudo pip uninstall mock
sudo pip install mock
python -c "import tensorflow as tf; print(tf.__version__)"
For Python 3.3+
wget https://github.com/samjabrahams/tensorflow-on-raspberry-pi/releases/download/v1.0.0/tensorflow-1.0.0-cp34-cp34m-linux_armv7l.whl
sudo pip3 install tensorflow-1.0.0-cp34-cp34m-linux_armv7l.whl
sudo pip3 uninstall mock
sudo pip3 install mock
python3 -c "import tensorflow as tf; print(tf.__version__)"
keras If you use TensorFlow, keras makes it very easy to use.
sudo pip install keras
sudo pip3 install keras
sudo apt-get install python3-numpy
sudo apt-get install python3-scipy
sudo apt-get install python3-pandas
sudo apt-get install python3-h5py
In some cases, this one (I don't remember, but when I used pyenv, it was ubuntu instead of Raspberry Pi).
pip3 install numpy
pip3 install scipy
pip3 install pandas
pip3 install h5py
pip3 install pillow
pip install numpy
pip install scipy
pip install pandas
pip install h5py
pip install pillow
Mecab Morphological analysis engine Mecab. Make it available from python as well.
sudo apt-get install mecab libmecab-dev mecab-ipadic-utf8 python-mecab
sudo pip3 install mecab-python3
python3 -c "import MeCab; print(MeCab.__version__)"
Google Cloud SDK SDK of Google Cloud Platform that is evolving day by day ? hl = ja). However, in python, we aim to implement using [requests] link-01 without using this SDK.
export CLOUD_SDK_REPO="cloud-sdk-$(lsb_release -c -s)"
echo "deb https://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo apt-get apt-transport-https
sudo apt-get update
sudo apt-get install google-cloud-sdk
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