[Image-SIG] Placing colored pixels next to each other

[Fredrik Lundh]

Steve Lianoglou wrote:

> What I want to do is place two different colored pixels next to each  
> other w/o one trampling over the other. I'm not quite sure what's  
> happening, or what to call it, maybe antialiasing, but lets say I  
> want to place a green pixel at 0,0.
> 
> Just setting one pixel to red doesn't make a red pixel at all, it's  
> rather grey. If I make a box (say 5x5) it's a bit better, but the  
> color isn't confined to the 3x3 box anymore .. there's a "splatter"  
> of coloring (of lower intensity) in the neighborhood of my red box.

how are you setting the pixels, and what are you doing to view the result ?

> I'm trying to visualize a 6000x200 matrix (in this case a microarray)  
> where each pixel would represent an index of the matrix .. the  
> different colors in each pixel would represent something else.

6000x200?  are you sure the artifacts you're seeing isn't caused by 
whatever program you're using to display the image?  or do you really 
have a 6000-pixel wide screen?

</F>