Re: Draw circles around findMaxima output

Posted by Kenton Arkill on May 18, 2015; 7:55am
URL: http://imagej.273.s1.nabble.com/Draw-circles-around-findMaxima-output-tp5012854p5012855.html

Hi
//from find maxima check the point selection (in Macro language).

radius = 10; //whatever
run("Find Maxima...", "noise=100 output=[Point Selection]"); //choose noise
correctly
run("Measure"); //Might need to remove scales in image prior to this

//All your points are in the results table to manipulate as you will
X=newArray(nResults);
Y=newArray(nResults);

for(i=0;i<nResults;i++){
X[i]=getResult("X",i);
Y[i]=getResult("Y",i);
}

for(i=0;i<nResults;i++){
makeOval(X[i]-radius, Y[i]-radius, 2*radius, 2*radius);

// DO WHATEVER HERE

}

On 17 May 2015 at 20:53, sam <[hidden email]> wrote:

> Hi all,
>
> I am trying to do the following:
>
> Use findMaxima to find multiple points in the image
> Use these coordinates to draw multiple circles, with each point as the
> centre of a circle
> Measure the signal inside each circle.
>
> My strategy has been to find the maxima and add the output to the roi
> manager. However, I have not been able to then draw a circle around each
> point.
>
> Sorry for the basic nature of the question but I am still not very good at
> imagej programming!
>
> Thanks,
>
> Sam
>
>
>
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>
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