Re: ROI closing

[Thomas Boudier-2]

Hi Andy,

I've updated the Fourier Analysis plugin in ImageJ Doc website, the
curvature are now displayed in a plotwindow. Is plotted the curvature
for each point along the computed curve by fourier analysis. You can now
save the values for each point  : X, Y and curvature.
About Fourier it's an implementation from the book "Image Analysis in
Biological Sciences" (chapter 7) that you can download at :
http://www.bioss.ac.uk/staff/chris.html.

Thomas
> Hi Thomas,
>
> If you don't mind, I have a few questions about your Fourier plugin:
>
> What exactly is plotted on the "curvature" graph (what against what)?
>
> I understand the basics of Fourier theory, but don't really know what your ax, ay, bx and by are? Are the b's normalised with respect to the centroid as row 0 is "0, 0"? Or are all 4 variables needed for complete Fourier understanding/inversion?
>
> Cheers, Andy

--
/*****************************************************/
 Thomas Boudier, MCU Université Pierre et Marie Curie
 Imagerie Intégrative,Institut Curie - INSERM U759.
 Tél : [phone]  Fax : [phone]
/*****************************************************/