树莓派人脸识别
1、识别熟悉的人 2、语音播报
环境准备
# Ubuntu
sudo apt-get install libdlib-dev libblas-dev liblapack-dev libjpeg-turbo8-dev
# Debian
sudo apt-get install libdlib-dev libblas-dev liblapack-dev libjpeg62-turbo-dev
# 声音
sudo apt-get install libasound2-dev
设置声音输出方式
sudo raspi-config
设置使用HDMI音频输出
测试工具
sudo apt install mplayer mpg123 -y
测试声音
sudo mplayer xx.mp3
设置帧率
https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=268139&p=1627824#p1627824
sudo touch /etc/modprobe.d/bcm2835-v4l2.conf
add
options bcm2835-v4l2 max_video_width=1920 max_video_height=1088
其余优化帧率方法
https://www.e-consystems.com/Articles/Camera/accessing_cameras_in_opencv_with_high_performance.asp
https://github.com/econsystems/opencv_v4l2
FAQ
树莓派遇到编译问题 “{aka ‘__gnu_cxx::__normal_iterator<dlib::vector<double, 2>*, std::vector<dlib::vector<double, 2> > >’} changed in GCC 7.1” ，修改 /home/pi/gopro/pkg/mod/github.com/!kagami/[email protected]/face.go
添加忽略警告标识: -Wno-psabi // #cgo CXXFLAGS: -std=c++1z -Wall -O3 -DNDEBUG -march=native 为 // #cgo CXXFLAGS: -std=c++1z -Wall -O3 -DNDEBUG -march=native -Wno-psabi
参考文献：
http://dlib.net/ https://hackernoon.com/face-recognition-with-go-676a555b8a7e https://studygolang.com/articles/20172
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