QR code applications

Robert Moskowitz rgm at htt-consult.com
Fri Mar 8 20:16:52 UTC 2013

On 03/08/2013 11:50 AM, Robert Moskowitz wrote:
> On 03/08/2013 11:12 AM, Robert Moskowitz wrote:
>> On 03/08/2013 09:41 AM, Michael Cronenworth wrote:
>>> Robert Moskowitz wrote:
>>>> I am looking for QR code applications for F17.  One(s) that generate
>>>> QR codes from text strings, and the different versions with different
>>>> text string lengths.
>>> # yum install qrencode
>>> or
>>> # yum install zint-qt
>> Thanks.  Finally got yumex to give me back some worthwhile search 
>> results and also found:
>> quearcode
> Created one but printing is a little challenging, to get them a 
> 'right' size.  But for camera, reading 2x3 wallet size should be ok.
>>>> And applications that use the computer's camera to read the QR code
>>>> and deliver the text string.
>>> # yum install zbar
>>> P.S. I found this by using # yum search barcode
>> Yes, and it seems to be the only reader.  Doesn't list QR that I can 
>> see.  Well install it and see if it works with my camera and reads 
>> codes I make.
> It does support QR codes, but I can't get it to do anything, other 
> than to show the QR code in its window.  There is no action to read 
> and save the image.  Maybe I should 1st try it with a 'real' qr code 
> on some package.

I got zbar to work.  The problem was that quearcode calls shotwell to 
display the qr code, and shotcode was chopping up the image on 
printing.  I ended up using gthumb to print it better, then zbar was 
able to scan it and send the content to stdout.  I also used a scanning 
app on my phone to read it and see the text.  So now I can put together 
my demo.


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