Fireworks CS4 Tutorials
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Paste an image on your canvas.
With the image selected click on Filters>Adjust color> Hue/Saturation
Now, the Hue/Saturation window is displayed. Give the following values for Hue, Saturation and Lightness, uncheck Colorize option and click OK.
In the Properties window, click on Blend Mode and select Difference.
Here's the transformed image.