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Author Topic: Paperwallet with Rorschach QR Code  (Read 726 times)
gdsl
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Al Berg


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February 12, 2013, 01:47:51 PM
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I wanted to make some paper wallets but found the image resolution on https://www.bitaddress.org wanting...

I've made a php script that creates an addess with the vanity genrator and composes a high resolution wallet png file.

This can be done offline as long as the pc has PHP installed.

When using the DOCTOR 75R_/PSY template the QR Code looked ugly and oldfashioned so I added a "Rorschach" filter.

A demo wallet is available at http://zen.gdsl.no/bitcoin/wallet-14ceber67effwcmazawxfhquu7ug4d8e6o.png.html?sizes=1

The CR Code is generated with "High" error correction, so, in theory, it should still be readable with 30% data loss. 

I would highly apreciate if someone could test the quality of the QR Code.

Full source will be made public once QR Code quality is confirmed.

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canton
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December 20, 2013, 01:24:01 AM
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Full source will be made public once QR Code quality is confirmed.

Scans for me!

5K5XwECkKKMrDWR9BNdoBEC62QcruqjkwghPn2P8Rd57gQeLSnC

Still offering that source code? Smiley
xyzzyx
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December 20, 2013, 04:05:01 AM
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I wanted to make some paper wallets but found the image resolution on https://www.bitaddress.org wanting...
...
When using the DOCTOR 75R_/PSY template the QR Code looked ugly and oldfashioned so I added a "Rorschach" filter.

Take a look at libqrencode by Kentaro Fukuchi.  It's on github.  The code is easy to understand and modify.  It would be simple to add an option for rounded corners on modules, for example, or even to make modules some other shape altogether than squares.  See the file qrenc.c in the source code.



"An awful lot of code is being written ... in languages that aren't very good by people who don't know what they're doing." -- Barbara Liskov
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