From: Hal Fulton <hal9000@...>
Date: 2004-02-03T09:33:01+09:00
Subject: Re: graphics lib?

Charles Comstock wrote:
>>>
>>> I have used RMagic in the past, but it doesn't quite seem suited to 
>>> per pixel editing.  I was trying to do an AI project of RedEye 
>>> detection for  a class, and I did succeed to use it but I had to add 
>>> a couple methods to more easily edit individual pixels.  It just 
>>> didn't seem to be really set up to do per pixel calculations or 
>>> modifications very nicely.  I was   curious if anyone else has 
>>> suggestions on what would be most appropriate for that?
>>
>> It's possible with RMagick.. get/set pixel methods  :-)
>> http://www.simplesystems.org/RMagick/doc/image.html#Image.get_pixels
>>
> 
> Right I have used that function it's just very cumbersome, it would be 
> much easier to directly edit the values in the real array they are in. 
> Exporting a pixel array is really not a very efficient operation, not to 
> mention the need to reimport them later.  Not to mention the fact it 
> returns a flat array which while it's easy to write an accessor that 
> 2d's it, it still is not particularly friendly towards doing image 
> analysis.

Tell that to Tim. I'm sure he'll consider adding to the API if you
make a strong case for it.

Hal