Here's the comment I posted on the Gist, copy-pasted to here:
@molven, @vibragiel: Wow, I feel more than a bit ridiculous after looking into this. Turns out, those original examples I made using GIMP (same basic process, tuned the parameters to make it look nice). I'd originally put this gist together several months ago, and I hadn't done a thorough enough check before submitting to HN.
HOWEVER, I've since created new examples actually using the bash script, and the gist has been updated accordingly.
@molven, @vibragiel: Wow, I feel more than a bit ridiculous after looking into this. Turns out, those original examples I made using GIMP (same basic process, tuned the parameters to make it look nice). I'd originally put this gist together several months ago, and I hadn't done a thorough enough check before submitting to HN.
HOWEVER, I've since created new examples actually using the bash script, and the gist has been updated accordingly.
You can get these images here:
> Input1 - http://i.imgur.com/27aDJ6b.jpg
> Input2 - http://i.imgur.com/LaRWFT4.jpg
> Output1 - http://i.imgur.com/xMxM8P2.png
> Output2 - http://i.imgur.com/E3XoM3e.png