Posted by
Herbie on
Jan 14, 2017; 4:12pm
URL: http://imagej.273.s1.nabble.com/Is-there-a-way-to-find-the-brightest-area-in-a-predefinded-area-tp5017892p5017897.html
Dear Maurice,
if, as you write now, the size of the second (circular) region is given,
a solution is possible.
Here is a suggestion that works for me:
1.
Make a (circular) selection according to the first (circular) region (ROI).
2.
Convolve with a (circular) disc function that corresponds to your second
region.
3.
Determine the maximum location of the resulting signal in the ROI.
4.
The maximum marks the center of the desired second (circular) region,
i.e. of the region with the maximum mean value.
HTH
Herbie
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Am 14.01.17 um 16:22 schrieb Mauci:
> Thanks for your reply!
>
> So, what I want to get is the following:
>
> 1. I want to select an area in my file, so that the measurements only take
> place there. (because I want to analyse different objects in my file)
> 2. In this selected area I want to find the area of a predefined size
> (bigger than one pixel) with the highest mean.
>
> So, lets assume my object has an area of 10, but my measurements should just
> have the area of 1. So I will circle my object and I want ImageJ to find the
> perfect position for my smaller circle, so that it has the highest mean.
>
> So far I did that manually, but of course this isn't perfect and it takes a
> lot of time to do that.
>
> Would you know a solution for that?
>
>
>
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