Posted by
Cammer, Michael-2 on
Mar 26, 2019; 2:58am
URL: http://imagej.273.s1.nabble.com/Using-circular-ROIs-with-XOR-tp5021929p5021930.html
I'm not sure what youare trying to do, but maybe something like this in the macro language?
open("
http://microscopynotes.com/cd11c_spleen.jpg");
makeRectangle(0, 0, 282, 108);
run("Crop");
run("Split Channels");
selectWindow("cd11c_spleen.jpg (red)");
makeOval(76, 9, 88, 88);
run("Copy");
selectWindow("cd11c_spleen.jpg (green)");
setPasteMode("XOR");
run("Paste");
run("Select None");
run("Merge Channels...", "c1=[cd11c_spleen.jpg (red)] c2=[cd11c_spleen.jpg (green)] c3=[cd11c_spleen.jpg (blue)]");
Michael Cammer, Sr Research Scientist, DART Microscopy Laboratory
NYU Langone Health, 540 First Avenue, SK2 Microscopy Suite, New York, NY 10016
[hidden email]<mailto:
[hidden email]>
http://nyulmc.org/micros http://microscopynotes.com/Voice direct only, no text or messages: 1-914-309-3270 and 1-646-501-0567
________________________________
From: BW Basheer <
[hidden email]>
Sent: Monday, March 25, 2019 7:13:31 PM
To:
[hidden email]
Subject: Using circular ROIs with XOR
Hello,
I'm new to ImageJ. Am trying to use xor on the pixel values within the bounds of a circular ROI. The Javadoc documentation says XOR operates on all pixels in the image or an ROI. In my tests, the XOR method is operating without regard for the boundaries of the circular ROI.
By way of example, I'm trying it this way:
image.setRoi(new OvalRoi(0,0,2950,2950));
image.getChannelProcessor().xor(0xffff);
Thanks for any suggestions. It would be greatly appreciated.
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