My brother is a noob with gimp and needs help. I'm letting him type this and hopefully someone would help out? -Waxy "I would like to select all of the shades of grey and black in this image and make them one uniform shade of black. I've tried a bunch of different things and looked up how to do what I want to do and I can't find any tutorials at all. It seems like there should be a way to select a range of colors then change them all to one color and leave the white background intact. If anyone can help with this at all I'd really appreciate it thanks." Here's the image: http://a.imagehost.org/0090/Class_Shirt_Design_V3.png
I don't know of the gimp equivalent, but in photoshop it is levels. https://www.youtube.com/watch?v=lJsJlgztd5U