Image color manipulation

I have a photo and i want to create a similar effect to:
http://hotwired.lycos.com/webmonkey/authors/images/author_transparent_from_black/paul.gif i wondered if someone could give me a step by step guide - rather than the yellow tinge i would like the photo to have a blue theme using if possible:
0000CC
3399FF
99CCFF
thanks
jonny
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jonnyhoughAsked:
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weedCommented:
Convert your image to greyscale, then convert it to Duotone. Select Tritone, and pick your 3 colors from the swatches. Then make a new document 3 pixels high, and one wide with a transparent background. Make the top pixel black. Select all, and define it as a pattern. Go back to your colored image, make a new layer, fill it with the pattern. Adjust the color of that layer as you see fit.
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jonnyhoughAuthor Commented:
thanks very much.
works perfectly and its a technique i'll use again.
jh
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