Re: analyzing a line, please

Posted by iqm mug on Jul 09, 2011; 12:01pm
URL: http://imagej.273.s1.nabble.com/analyzing-a-line-please-tp3683973p3683975.html

I would suggest a fractal analysis. The fractal dimension of the treated
images may have higher values.

Best wishes,
Helmut

2011/7/8 Johannes Schindelin <[hidden email]>

> Hi Jimena,
>
> On Fri, 8 Jul 2011, Jimena Berni wrote:
>
> > I am trying to analyze the track of two different animals (image
> > attached). One of them, the treatment is going kind of in circles while
> > the other perform straight lines and then turns.
> >
> > I thought i could draw a segmented line over the track and get the value
> > of angle between two adjacent points. I don't find a way of doing this.
> > I thought that another alternative would be to get the XY information of
> > the line. Is there a way of doing that?
>
> Of course that is one way to do it, although the analysis would
> definitely require programming a macro.
>
> But if all you seek is to have a robust discrimination between treated vs
> untreated animals, I think it might be better to measure enclosed area vs
> average intensity. At least to me it looks like the "cuddled" paths cover
> a smaller area, so the average brightness in that area is much higher than
> in the other case.
>
> Ciao,
> Johannes
>