Background subtraction

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Background subtraction

Wes Armour
Hi All,

I would like to fit a cubic spline to regular spaced samples of an image
and then use the results of the fit as a model of my image background to
subtract off the original image.

There is some astronomy imaging software called pixinsight that does
this and it is called a dynamic background extraction...

http://pixinsight.com/tutorials/LE/DBE-example/en.html

Does ImageJ have anything similar???

Thanks,

Wes.

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Re: Background subtraction

Gabriel Landini
On Thursday 22 October 2009  12:31:39 Wes wrote:
> I would like to fit a cubic spline to regular spaced samples of an image
> and then use the results of the fit as a model of my image background to
> subtract off the original image.
> Does ImageJ have anything similar???

Not splines, but polynomial surfaces. See near the end of the following page
for some plugins to do this:
http://imagejdocu.tudor.lu/doku.php?id=howto:working:how_to_correct_background_illumination_in_brightfield_microscopy

Cheers.
G.