From: Antonio Cangiano <rubydevelopment@...>
Date: 2005-12-27T06:32:52+09:00
Subject: Re: Getting the color of a pixel

Thomas wrote:
> Hi,

Hi Thomas,

> 1. How do I get the color of a specific pixel? (By giving it the 
> coordinates of the pixel)

Image.pixel_color:
http://www.simplesystems.org/RMagick/doc/image2.html#pixel_color

> 2. How do I store parts of a picture to a file? (So like everything 
> between points (3,7) and (90,300))

You could use:
Image.crop(x, y, width, height)

Where x and y are the offsets of the rectangle relative to the 
upper-left corner of the image. width and height are the dimensions of 
your desidered region.
http://www.simplesystems.org/RMagick/doc/image1.html#crop


Cheers,
Antonio
-- 
Antonio Cangiano
My Ruby blog: http://www.antoniocangiano.com