Hello Robert,
I had not had a chance to write to say thanks for this help. It works for
me - very effectively
I did, however, mean something else: using other IA software - Omninet
Enterprise, I remember being able to set different colour masks
simultaneously on a given image: say you have three different kinds of
things you want to measure for are: so you'd thresh the first type (0-128)
to red, the second type (129-215) to blue and the third type (216-255) to
green. Then, when you do your measurements you'd get the different areas
for each colour. I though thresholding using over/under was going to do
this for me but it only measures that which is not green or blue. So in a
sense I have to do a combination of steps t get there. The trick of
changign the image label is very good however, cause it allso me to keep
trac of what is beign thresholded
Cheers for now,
m.
========================================================================
Manuel Arroyo-Kalin, McBurney Geoarch. Lab, Dept. of Archaeology,
University of Cambridge, Downing Street, Cambridge CB2 3DZ, UK
=========================================================================
On Fri, 22 Oct 2004, Robert W. Baer, Ph.D. wrote:
I'm not sure EXACTLY what you have in mind, but if you take an RGB image and
choose from the menu Image | Color | RGB Split, you will get 3 images. If
you threshold each separately, and particle analyze each separately, you
will see that the label field tells you which particles were from which
image. If you want a gray image, duplicate the original image and change it
to gray scale. You can make this or any other label unique in analyze
particles by using the Image | remane command.
Hello,
I am new to ImageJ - is there a way of measuring such that 3 different
types of objects (that's easy: Image>Adjust>Threshold) can be measured
using Analyze PArticles, but identifying which belongs to what type (i.e
which measurement are for the blue/green/grey)?
Thanks,
m.
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