How to enlarge a Roi?

[Mohamed Tleis]

Dear members,

i am trying to enlarge a roi through a java program; but couldn't get
that to work. The last result I came up with is the following code:

     private Roi enlargeRoi(Roi roi)
     {
         Roi largerRoi;
         imp.show();
         imp.setRoi(roi);

         IJ.run(imp, "Enlarge...", "enlarge = 1");

         // how can I get the new Roi?
         largerRoi = imp.getRoi(); // not working;
         imp.hide();

         return largerRoi;
     }

Thank you in advance,

Best Regards,
M. Tleis

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html

[Graeme Ball]

If you want something quick, try converting to a mask, dilate (binary
operation), then back to an ROI. e.g. in IJ macro language -

run("Create Mask");
run("Dilate");
run("Create Selection");


Graeme


On 14/11/2012 12:36, Mohamed Tleis wrote:

> Dear members,
>
> i am trying to enlarge a roi through a java program; but couldn't get
> that to work. The last result I came up with is the following code:
>
>     private Roi enlargeRoi(Roi roi)
>     {
>         Roi largerRoi;
>         imp.show();
>         imp.setRoi(roi);
>
>         IJ.run(imp, "Enlarge...", "enlarge = 1");
>
>         // how can I get the new Roi?
>         largerRoi = imp.getRoi(); // not working;
>         imp.hide();
>
>         return largerRoi;
>     }
>
> Thank you in advance,
>
> Best Regards,
> M. Tleis
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html

--
---------------------------
Dr. Graeme Ball
Department of Biochemistry
University of Oxford
South Parks Road
Oxford OX1 3QU
Phone [phone]
---------------------------

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html