1、安装Howdy: howdy项目地址
sudo add-apt-repository ppa:boltgolt/howdy sudo apt update sudo apt install howdy
2、添加自己的face
sudo howdy add
报错：
Enter a label for this new model [Initial model] (max 24 characters): tiger Camera path is not configured correctly, please edit the 'device_path' config value. Exception ignored in: <bound method VideoCapture.__del__ of <recorders.video_capture.VideoCapture object at 0x7f6bc5be02b0 Traceback (most recent call last): File "/lib/security/howdy/recorders/video_capture.py", line 55, in __del__ self.internal.release() AttributeError: 'VideoCapture' object has no attribute 'internal'
解决方案:
$ sudo apt-get install v4l-utils # 查看摄像头路径 $ v4l2-ctl --list-devices USB 2.0 Camera: USB Camera (usb-0000:03:00.0-14): /dev/video0 $ sudo howdy config # 接下来更改config中的device_path = /dev/video0
$ sudo howdy add Adding face model for the user tiger Enter a label for this new model [Initial model] (max 24 characters): tiger Please look straight into the camera Scan complete Added a new model to tiger
3、测试
打开一个terminal
$ sudo -i Identified face as tiger
$ sudo howdy test Opening a window with a test feed Press ctrl+C in this terminal to quit Click on the image to enable or disable slow mode Closing window
4、屏幕锁屏后，enter进入输密码界面，程序就会识别出人，直接解锁。
5、其它命令
Usage:
howdy [-U user] [-y] command [argument]
Command
Description
add
Add a new face model for an user
clear
Remove all face models for an user
config
Open the config file in your default editor
disable
Disable or enable howdy
list
List all saved face models for an user
remove
Remove a specific model for an user
snapshot
Take a snapshot of your camera input
test
Test the camera and recognition methods
version
Print the current version number
总结