DesignLabComposition © Dominic J. Melfi author/programmer
Here I clicked screen within the blue sky and raised upper range and lowered lower range until best transparency of sky was obtained. (a few seconds) Transparency reveals background image Flag. Any number of images can be layered in this manner. (Actually current limit is 100)
Saving image and re applying a new range allows for exact control.
Here I was able to get a pretty good result with one step. In this instance where contrast is good between foreground and background results are dramatically good.
When taking photos for stock items with contrasting backgrounds, DesignLabComposition can clean them up almost instantly exceeding any tedious outlining or other functionalities.
A script can be saved so that composition can be reloaded with all alterations and work can continue.