kurtosis and skewness

[Jerry (Gerald) Sedgewick]

Is there documentation about the code used to derive kurtosis and
skewness from the Measure function in Image J?

Jerry

--
Jerry (Gerald) Sedgewick
Author: "Scientific Imaging with Photoshop: Methods, Measurement and Output."

Sedgewick Initiatives
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[BenTupper]

Hi,

On Jun 2, 2010, at 7:35 PM, Jerry (Gerald) Sedgewick wrote:

> Is there documentation about the code used to derive kurtosis and  
> skewness from the Measure function in Image J?
> Jerry
>

If you only want the user docs you can find them here...

        http://rsb.info.nih.gov/ij/docs/menus/analyze.html#set



But you said "documentation about the code", so your best bet is to  
examine the code itself. Check out the source online at

        http://rsb.info.nih.gov/ij/developer/source/index.html

and look for image class that extends ImageStatistics.  For example,  
if you want to see how it is done for a byte image, check out  
ByteStatistics.  Once there, you'll see the calculateMoments method.

Cheers,
Ben