Claudius Hubig <[email protected]> writes:
> An example image would be helpful.
I have put some to my home page, see below.
> > I haven't installed libdecodeqr-dev since that seems to have
> > completely ill dependencies.
>
> Itâs a development library (-dev) intended for use if you want to,
> well, develop your own programmes.
Yes, I know and I wouldn't mind doing so. But I didn't like the
dependencies on capturing, font libs, displaying on X11 etc. IMO a
library for decoding should do exactly and only that. It shouldn't
mess with where I get the images from or whether I want to display
them.
> zbarimg from zbar-tools was able to recognise [0], but not [1].
Ah, thanks for that hint. I haven't found that tool before. I tried
zbarimg on my images but (first) without success. The images were
taken from a laptop screen and have probably to high a resolution,
showing too much detail of the screen's pixel structure instead of
solid white. After converting to 320 x 200 pixels with ImageMagick
zbarimg found the QR codes in all images immediately.
I have put my example images on
http://thuermann.net/urs/qr
The images eos-*.jpg on couldn't be decoded by zbarimg, but
small.eos-*.jpg were decoded successfully.
Thanks again. That brings me close to my goal of automatically
correcting image time stamps, i.e. to compensate for the camera
clock's time drift.
urs
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