Image making help

[atraxen]

OK, so I'm stumped as to how to make something, and I'll take help from all takers. I'd like to make a rectangular image, say 50w x 800h (in pixels). I'd like to have this rectangle a solid color fill. But here's the tricky part - I'd like the dead center to be 0% opacity, with transparency increasing as you more toward the top/bottom along with

Comments

[bryguypgh]

I would get on irc at freenode.net and /join #gimp - there's almost certainly someone there who could help you do it with the gimp.

[atraxen]

Good idea - I did, but the only answer I got requires some scripting (and I'm no good at that...)

So, now I'm floating around on Google. I probably will have to do one pixel row at a time, change the color to a grayscale value comparable to the transparency I want, then use it as a layer mask.

Sucks.

[severinpgh]

ImageMagick has a image generating solutions-- I'm uncertain if they have an arbitrary gaussian mask however.

[atraxen]

I've been fiddling with it tonight, and I see that is has the 'mathematical function' feature, but I can't even get most of the example command lines to work for me, so I think I'll be stuck making it pixel by pixel (which would have taken less time at this point, but ah, well...)