imellipse, impoly, etc. to create mask, keeping the border.

Hello, I am using imellipse, imfreehand, impoly and imrect to create a mask after selecting an area of an image. This works well and I have no problem with this. What I would like to do now is that when drawing the shape, e.g. an ellipse, not only will I use it to create the mask and further actions, but the border of the ellipse drawn will still show, the outline of the selection.

Answer 1

[Image Analyst]

After you call the function, you have to get the x,y coordinates, and then call hold on and plot()

hold on;
plot(x,y, 'b-');

See attached demo.

[Fer]

Thanks a lot, as usual your answer was very helpful!

This is what the code ended up looking like, in case anybody has a similar question:

 axialROI=imellipse;
axialROImask=createMask(axialROI, handles.currentAxialDisplay);
roiboundaries=bwboundaries(axialROImask);
  xy=roiboundaries{1};
  x=xy(:,2);
  y=xy(:,1);
  hold on;
  plot(x,y, 'g--');