Comments on: Processing QRCode Library

By: lee

lee — Mon, 11 Aug 2008 04:34:37 +0000

PImage img = loadImage(”qrcode.jpg”);

when i used this,
here “PImage” shows error…
is it because of some missing classes???

By: lee

lee — Wed, 06 Aug 2008 10:42:56 +0000

hi , plz spend some time to direct me to install this library.
i’m intrested in using this library . i used this library as a package in my prog. but showing errors
can u spend some time so that i can use this library..
thankz in advance…

By: Daniel

Daniel — Mon, 16 Jun 2008 13:04:53 +0000

David: Sorry, I don’t, but the source code is there for adaptation

By: David

David — Fri, 06 Jun 2008 10:40:29 +0000

Do you have any netbeans example of use this library ?

By: Alex

Alex — Wed, 04 Jun 2008 08:16:22 +0000

If found a good website on QR code. You can generate barcodes, decode them with mobiles, etc. : http://www.jaxo-systems.com

By: Ramon

Ramon — Thu, 20 Mar 2008 17:08:52 +0000

Hi!
I am 22 years old and I’m in 2 year of Electronic Art and Digital Design in a university from Barcelona, Spain.
I’m trying to program a very simple code by myself in Processing similar to the AudioPad or the Reactable using QRCode. I don’t have lots of experience in programing, but I try hard with new things. How could I know the position of various qrcodes in the sketch? In your library is there any function that returns you the position of the qrcode? And if it’s not very complicated, the same with the rotation.
I would be very pleased if you could say me something about this, if you know any other library, any book…. or any other thing that could help me with this.

Thanks for all! ^^

By: Daniel

Daniel — Thu, 20 Mar 2008 14:17:38 +0000

Hey Sean, thanks for the info about ZXing, I’m definitely going to investigate, might be worth making a Processing specific library for ZXing which I’d be happy to do!

By: abnoba12

abnoba12 — Wed, 19 Mar 2008 20:38:42 +0000

Is it posible to have it decode many QR Codes in a single image. The project I’m working on requires it. Nice app BTW.

By: Sean Owen

Sean Owen — Sat, 15 Mar 2008 04:04:59 +0000

da5id.b that’s an error from the qrcode library. I think it is a little buggy.

May I plug our open-source decoder, ZXing: http://code.google.com/p/zxing

I’d happily rewrite the wrapper here to use this decoder. I’d bet dollars to donuts its faster and more accurate.

By: Sean Owen

Sean Owen — Sat, 15 Mar 2008 04:02:54 +0000

The “UnsupportedVersionError” comes from the fact that it was compiled by a later version of Java than you guys are using, and was not specifically targeted for an earlier version.

That source code should be compilable back to Java 1.2 or maybe before. Daniel I think you just need “-target 1.2″ on your javac command.

Or, folks with the issue, use a newer verison of Java. I think major version 49 = Java 5, which is not even that new. Go to Java 6 if you can.