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Webcam command line applications
Configuration script
Dyne works fine with logitech quickcam :
modprobe quickcam.o
ln -sf /dev/v4l/video0 /dev/video
Check [http://lab.dyne.org/Troubleshooting Troubleshooting]
Screenshot
* [http://www.lea-linux.org/cached/index/Software-soft_multi-webcam.html] is a tutorial for using "webcam" , a simple grabber for webcams. * [http://www.lavrsen.dk/twiki/bin/view/Motion/MotionGuide] Motion can do everything with a webcam includind pre-treatments of grabbed images. (todo : check the install in dyne...)
Image filtering and analysing
[http://www.imagemagick.org/script/index.php] the classical image magick (todo : check the install in dyne...)
OCR
[http://www.penguin-soft.com/penguin/man/1/gocr.html] would do the trick (todo : check the install in dyne...)
Overall glue
A simple perl script in daemon mode would take a screenshot every second , a simple compare image would localize change in the picture and then activate the treatment and the "processing algorithm".