| Gaussian Fit to background of image for subtraction [message #52510] |
Tue, 06 February 2007 09:25 |
rpertaub@gmail.com
Messages: 43
Registered: January 2007
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Hello,
I am doing some image analysis, and my image consists of several
bright spots that I need to detect. I was able to write a program that
would do just that...find the pixels that are larger than a threshold,
group close pixels together and label different blobs as different
spots by marking a 'plus sign' on the spot. Except, it does not 'see'
all the spots, and lowering the threshold results in 'seeing' spots
that are not there. Therefore, I am considering some filtering that I
need to do to my background as it is not uniform and was suggested to
perform a gauss 1d or 2d to the background to subtract it (and exclude
the spots as I do that), and then see if i can 'see' all the spots....
I am not sure how to do a gauss fit to background though...any
suggestions?
Thanks!
rp
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