Revision [695]

This is an old revision of Blog20110603BarCodeWebcam made by BenoitAudouard on 2011-06-13 15:25:01.

 

My use case would be to show my book's barcode in front of the webcam and provide automatically the ISBN (EAN) to gcstar and launch search. This would permit to enter my library a bit faster ;-)

http://sdlcam.raphnet.net/
http://jlinbar.sourceforge.net/ java, no doc to launch it o_O (check wiki though)

http://forums.gcstar.org/viewtopic.php?id=263

http://graphics.tudelft.nl/~jorik/css/barcode.html good spirit :-) and using ffmpeg

pgmpipe was not working as not implemented in default ffmpeg on Mageia 1, see
http://ftp-stud.hs-esslingen.de/pub/Mirrors/Mageia/distrib/1/i586/media/tainted/release/
hmmm pgmpipe not by default either :/

http://sourceforge.net/projects/zbar/ (new name for zebra) qt4 & gtk UI available apparently

http://forums.gcstar.org/viewtopic.php?pid=2264 and http://forum.framasoft.org/viewtopic.php?t=28412
$ vgrabbj -d /dev/video -o ppm | gocr -


what worked for me :
$ vgrabbj -d /dev/video0 -o ppm | gocr -

well, disappointingly I keep having
<barcode type="unknown" /><barcode type="unknown" />



vgrabbj -d /dev/video2 -i vga -o ppm -f essaivga2.ppm -l 1 # will launch vgrabbj as a deamon and take an image every second, re-writing the file
display # will show the image (have to tweak to be displayed whenever it changes, or perhaps does it automatically)

Logitech Pro 4000 640x480
Eee PC 901 1,3 Mpixel maybe 1280x1024 ? according to http://web.forret.com/tools/megapixel.asp?title=1.3+Megapixel+camera&width=1280&height=1024

Well, to check that gocr works, just use barcode
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