Hi,
I have a question.
I am using Gwyddion for calculating the size of agglomerates of particle that I
have on my AFM images. Basically I need the radius of gyration, which, I think,
can be considered the mean radius value, or the projected boundary length, or
the minimum and maximum bounding sizes, in order to make a histogram.
I can see that I can measure those values with this program but one at the
time. Since I have hundreds of agglomerates, is it possible to tell the program
to calculate those values for all the grains that it sees and put them in a
table?
Also, I noticed that I can do the histogram of the mean radius (and other
values) (data process >> grains >> distributions), which is basically what I
need, but most of the agglomerates appear to have mean radius = 0. And I also
did that by increasing the height value of the threshold, so that to eliminate
the very small grains, but again, the mean radius of the majority of grains
showed in the histogram is zero.
So, is it possible that there are some single pixel on the background that my
eyes cannot see? If so, how can solve this problem?
Thank you.
Miriam
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