From: jeljer te Wies <jeljer@...>
Date: 2009-03-23T08:12:09+09:00
Subject: Re: convert PNG to hex

Pascal J. Bourguignon wrote:

> Well it's easy enough to do that with the methods I proposed
> above. Something like:
> 
> def decode(image)
>    i=0
>    lastWhite=0
>    bytes=[]
>    (0..(image.height)).each {| y |
>       (0..(image.width)).each {| x |
>          if image.pixelAt(x,y).isWhite? then
>            bytes.push(i-lastWhite)
>            lastWhite=i
>          end
>          i=i+1
>       }
>    }
>    bytes
> end
> 
> (That's the reason why I proposed those methods).
> 
> 
> Now you only have to implement them, doing the same: whish for methods
> that would make implement the method pixelAt(x,y) easy, and do it.
> Then further implement the missing methods.

ah thanxs ! .. I will post the real answer as soon as I have got it ...
(but that could take a while... my RMagick isn;t working... will google
first though:P )
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