API way to set channel LUT in composite image.

Posted by Aryeh Weiss on Aug 23, 2018; 9:40am
URL: http://imagej.273.s1.nabble.com/API-way-to-set-channel-LUT-in-composite-image-tp5021114.html

I am trying to do set the LUt of a channel (actually, three of them) for
a composite image.

     fusedImp.setC(1)
     IJ.run(fusedImp, "Grays", "")
     fusedImp.setC(2)
     IJ.run(fusedImp, "Red", "")
     fusedImp.setC(3)
     IJ.run(fusedImp, "Green", "")

Above is a way that works. However, it means that the image (which is
large) updates with each IJ.run call,

I tries the following:

     compFused = CompositeImage(fusedImp)

     compFused.setChannelLut(LUT.createLutFromColor(Color.GRAY), 1)
     compFused.setChannelLut(LUT.createLutFromColor(Color.RED), 2)
     compFused.setChannelLut(LUT.createLutFromColor(Color.GREEN), 3)

for i in compFused.getLuts():
     print i

compFused.updateAllChannelsAndDraw()

but although the correct LUTs print out, the image is unchanged.

What am I missing?

Tnx in advance
--aryeh

--
Aryeh Weiss
Faculty of Engineering
Bar Ilan University
Ramat Gan 52900 Israel

Ph:  972-3-5317638
FAX: [phone]


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