Two Color T-shirt Design (Lights and Darks)...any ideas?...Pics inside!

[gsw2007]

I'm trying to figure out how the creator of this shirt (http://i7.photobucket.com/albums/y275/norcalswell182/DSC02932_1.jpg) was able to turn the picture of jessica alba (http://i7.photobucket.com/albums/y275/norcalswell182/jessica-alba1.jpg) into those two colors. If you look at the shirt, her figure is only made of two colors (a dark yellow and a yellow). If anyone knows how to do this, can you please inform me?...it's been driving me crazy how to do this

Shirt Pictures:
http://i7.photobucket.com/albums/y275/norcalswell182/DSC02932.jpg

http://i7.photobucket.com/albums/y275/norcalswell182/DSC02932_1.jpg

Actual Picture:
http://i7.photobucket.com/albums/y275/norcalswell182/jessica-alba1.jpg

 

[ronmatt]

This should get you started.. I haven't done this before so someone may have a better way.

A ) extract the background and copy it to a new window with a transparent background as layer 1

B ) copy layer 1 and give the copy a color overlay (layer 2 ). Posterize layer 1 ( this is level 5 posterization )
extract the white space in layer 1 and use a color overlay a shade darker than layer 2.

C ) Place layer 1 on top of layer 2

 

[Arkpressen]

Or you could mask her out in photoshop, copy/paste into illustrator.
Use the Live Trace tool, choose black/white.
Get back to photoshop.

Now make the masked alba completely black (or any other color)
copy/paste to illustrator
live trace again.
then use the live color bucket in illustrator and make her the colors you want.
The neat part with doing this, is that you can print it as large as you want since it's vectorized.

Also, fiddle with the live trace settings, to make the trace as you want it.

Here's an example.