Is it possible to reduce a multi-color image to just 2 colors in Photoshop or Illustrator CS2?

I have an image that uses over about 20 different colors (there are 2 colors that dominate the image). I want to reduce the image to just those 2 main colors. How can I do that in Photoshop CS2 or Illustrator CS2?Is it possible to reduce a multi-color image to just 2 colors in Photoshop or Illustrator CS2?
In Photoshop, in the menu bar select Image/Adjustments/Posterize and set the number of colors you want to allow. It will reduce the image to the most dominant colors in the image.





In Illustrator, you can use the Live Trace tool. It's a bit more complicated than the Photoshop method but if you want a vector version of your art, it can't be beat. Because of that, there's a detail guide linked below.





Good luck.Is it possible to reduce a multi-color image to just 2 colors in Photoshop or Illustrator CS2?
btw if you ever have any color printing and matching issues try this it saved my life http://www.designersnexus.com/store/color-library/ Report Abuse

it depends what you mean


do you mean like the rest of the colour in black and white and then you get just those two colours showing





or do you mean the whole picture is in colour but only using those two colours
Control+U opens the Hue and Saturation control,Choose the colour you wish to change at the top drop down box,slide the Hue slider until you have the colour you want,click OK.There are several more ways but that's a simple one.
You can convert to black and white and then use the color replacement tool to convert black to one color and white to another.