Today’s featured promo on MacUpdate offers Decompose for US$14.99 (50% off, retail $29.99). “Decompose is an utility for Mac OS X to extract objects from images. The extracted objects can then easily be inserted in a new composite image. It is saved as a TIFF file with transparency. Decompose corrects colors to remove all traces of the previous background, thus generating perfect mattes.” Decompose requires Mac OS X 10.2 or later.