Zbr's days.

About :: TODO :: Blog :: RSS :: Old blog :: Projects :: GIT :: Gallery :: Notes

Fri, 11 Jul 2008

Spline graphical interpolation fun.

Bezier/Hermite interpolation interface

Playing with different spline interpolation methods. So far they seems to be quite simple when written in matrix form, so I cooked up simple GTK application to test various methods.
There is no interpolation implementation yet, since I devoted last two days to read lots of materials about Bezier and Hermite interpolation techniques (as long as lots of papers about distributed hash tables, which I will use as a filesystem storage base for POHMELFS).

/devel/captcha :: Link / Comments ()


Wed, 09 Jul 2008

Captcha transformation algorithms.

Couple of first ideas. Pretty trivial.

Average sliding and normalization algorithms

Next step is to squize images, so that all bold lines moved to single-pixel ones. In theory it should not be very complex (I have an algorithm in mind), but in practice it will - starting to recall why in the hell I learnt LISP.
Basic idea is to transform above BW pictures into simple binary format, which will be read by LISP application, since I do not know and do not want to devote much time to learn how to parse/process various image formats, instead it is done by GTK application written in C. I belive LISP was called the best language for artificial intellengence development for reason, so will try to find why.

Slacking - rox :)

/devel/captcha :: Link / Comments ()


Tue, 06 May 2008

New captcha solving problem.

Just in case you will notice some delay in filesystem or network development, reason is simple. I decided to devote some time to new captcha cracking problem, namely this ones:

Captcha problem

The reason is simple, I want to test my captcha breaking ideas on something which is real. And also I was frustrated by theirs abuse team, which was not able to fix spam filter based on messages I sent them (bounce and original, just like requested).
It is pretty unlikely though that something will appear anytime soon, but I do want to test some ideas...

/devel/captcha :: Link / Comments ()