On 10:51 Wed 17 Nov     , Warren, Mark R wrote:
> I am trying to compare the difference between two diffraction images 
> from a Mar detector before and after irradiation. At present I have 
> used the marcombine program to subtract the diffraction images, but I 
> don't have any statistical information.
> 
> Can anyone suggest either another good program to observe the 
> differences in the images or a way to obtain some statistics about the 
> subtracted image?

ADXV will allow you to treat one image as "background" and thus subtract 
it from another. There are no statistics, but you can also use ADXV to 
export a full-size image to TIFF and analyze it using more capable 
image-analysis tools like ImageJ.

Of course a more advanced analysis would probably involve indexing each 
image and comparing intensities, but that's pretty straightforward so 
I'm assuming you've already thought about it.

-- 
Thanks,
Donnie

Donald S. Berkholz, Ph.D.
Research Fellow
James R. Thompson lab, Physiology & Biomedical Engineering
Grazia Isaya lab, Pediatric & Adolescent Medicine
Medical Sciences 2-66
Mayo Clinic College of Medicine
200 First Street SW
Rochester, MN 55905
office: 507-538-6924
cell: 612-991-1321

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