Can you figure this out?

[amy113]

How did the artist go from this
www(dot)chezamyl(dot)com/images/RADIANT%20CROSS%20LOGO-2(dot)pdf

to this

www(dot)chezamyl(dot)com/images/RC%20Logo%201(dot)gif

thank you in advance.

[mozartdminor]

I'd say that is done with some combination of:

image->adjustments->gradient map
image->adjustments->posterize
and
image->adjustments->hue/saturation.

I just did a quick test with those, and it came out pretty similarly.