Posted by
Joachim Wesner on
Aug 12, 2009; 6:20pm
URL: http://imagej.273.s1.nabble.com/PIXEL-VALUE-tp3686973p3686976.html
Hi again,
yes this should be possible, it´s a standard ImageJ feature, "compund
ROIs":
You draw the outer circle
Hold ALT while drawing the inner circle
After this, any ROI based operations should only see the region between the
circles
(Try "Fill", or "Clear outside" etc. for a test)
Joachim
Mit freundlichen Grüßen / Best regards
Joachim Wesner
"King, Karilane"
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Re: Antwort: PIXEL VALUE
12.08.2009 19:45
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Joachim,
That's exactly what I was looking for, BUT, the area I want is between
two circles. So, I would draw one circle and draw another circle within
the first and I want to histogram the area between the two. Is this
possible?
Thank you
Kari King
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Joachim Wesner
Sent: Wednesday, August 12, 2009 1:15 PM
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Subject: Antwort: PIXEL VALUE
Hi Kari,
if I understand correctly, this is nothing else then a "histogram", Right!?
Simply do "Analyze/Histogram" (will only work within the ROI) there is also
a button to get the list of numerical values!
Cheers
Mit freundlichen Grüßen / Best regards
Joachim Wesner
Leica Microsystems CMS GmbH | GmbH mit Sitz in Wetzlar | Amtsgericht
Wetzlar HRB 2432
Geschäftsführer: Dr. Stefan Traeger | Dr. Wolf-Otto Reuter | Dr. David Roy
Martyr | Colin Davis www.leica-microsystems.com
"King, Karilane"
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PIXEL VALUE
12.08.2009 18:58
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Dear All,
We are looking for a way to count every pixel strength (value) from
0-255 on a gray scale, and figure out how many there are within an ROI.
Thanks
Kari King
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