alvarado: @ADD: Functor to mask a color image with a labeled or unlabeled mask has been added. The lti::maskImage functor can overlay the regions in a mask using the colors specified in a palette, considering also the transparency given in the "dummy" (or alpha) component of the palette entries. It is therefore not only possible to mask regions completely out (like background) and leave others untouched, but to overlay colored transparent layers on the result.