Library to generate QR codes from bytestrings and objects https://github.com/vmchale/QR-writer
|Latest on Hackage:||188.8.131.52|
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QR Imager Library
This is a library to generate
.png files from QR codes.
The library can be used via the exported functions
readQRString, plus their signed counterparts. The first two export to ".png" while the third can be used on any image format
objToImg output JuicyPixels images for your further manipulation.
For building haskell, the best tool is currently http://haskellstack.org. Install it, and then type
stack install --install-ghc
in the appropriate directory, and it will be installed to your path.
Compiling will generate an executable called
qrpipe which reads from
stdin and outputs a file as the second argument, e.g.
echo 'My name is: Vanessa" | qrpipe write -v "nametag.png"
To then read the nametag:
qrpipe read "nametag.png"