From: Phlip <phlip2005@...>
Date: 2009-02-28T00:19:11+09:00
Subject: Re: Image/Pattern Recognition

Serabe wrote:

> Becky Franklin:

>> I have a project I'm trying to work out the feasibility of being able to
>> do - I want to process images that consist of a grid of squares
>> containing symbols, and I want to be able to break down the grid so that
>> the program can work out how many of each symbol there are and where it
>> is on the grid. Not sure if this is something that's going to be do-able
>> from what I've googled! Does RMagick or any of the gems have a possible
>> solution to this?
> 
> You can use get_pixels (
> http://www.imagemagick.org/RMagick/doc/image2.html#get_pixels ) for
> getting pixels in a region and store_pixels for (yes, you guessed it)
> store pixels in a image.

That is as far from pattern recognition as atoms are from elephants!

Becky needs to google for "chain code". I really doubt a Ruby implementation is 
available, because the algorithms to do it in less than polynomial time are secret.

-- 
   Phlip