Is there a way to use the image editing feature that iChat has on images other than through iChat? For example I want to use the glow effect on a image I have on my Mac.
There is a (not free sorry) program called Pixelmator. That has all the Quartz effects in it, including glow. It's a good image edtitor. There is a demo here www.pixelmator.com
Maybe someone else has an idea on how to use the quartz effects on a photo for free.
If you install the developer tools from your installation disc, you get something called Core Image Fun House that lets you play with the effects. I did it a few years ago on Tiger and turned one of my photos into a nice wallpaper.
Not sure if this is a SL only thing, but I was poking around in Automator and they now have an option to apply a quartz filter to a picture or a pdf. You could whip up a quick automator script to apply the filter to pics.