a quick, dirty and simple clone of http://www.visualead.com/
Usage: visualqr.rb [options] data bg out
Create QR Code with background image.
data data to be embedded.
bg file name of background image. must be PNG
out file name of output image. will be PNG
Options:
-s, --size N size of the qrcode, 1~4 (default 4)
1 21 * 21, 72 code length
2 25 * 25, 128 code length
3 29 * 29, 208 code length
4 33 * 33, 288 code length
-l, --level N error correction level, 1~4 (default 4)
1 (:l in rqrcode) 7% of code can be restored
2 (:m in rqrcode) 15% of code can be restored
3 (:q in rqrcode) 25% of code can be restored
4 (:h in rqrcode) 30% of code can be restored
-m, --modified N modified coefficient to make dots more naturual, 0~0.1 (default 0.03 when level is 4, otherwise 0)
-d, --dotpadding N padding of dots for background (default 0.25)
-h, --help show this message
--version show version