Blending overlapping images WITHOUT blending the background in too

Posted by Alan Hewat on Aug 13, 2009; 5:31am
URL: http://imagej.273.s1.nabble.com/Blending-overlapping-images-WITHOUT-blending-the-background-in-too-tp3691487.html

I want to blend together two overlapping (monochrome) images so that
the overlapping parts are their average intensities.

But if I paste these images with paste control "blend" into a new
image with a black (or white) background, the background is blended in
too.

Is their a paste mode that will not also blend in the black background
? Or can I set the background to something that won't be blended in
when I paste onto it ?

Alan.
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Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE
<[hidden email]> +33.476.98.41.68
        http://www.NeutronOptics.com/hewat
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