Photoshop help

[.TakaM]

basically, I need to know how I can easily turn

into

anyone know how?

 

[.TakaM]

I got it sorted

Image
- Mode
- - Indexed Color

thanks if anyone was trying to figure it out

 

[Kyoji]

I beleive when you save a .gif or .bmp it gives you dither options, too. Been awhile since I've used them though, so they could be gone or moved.