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How can I draw several ROI's using imfreehand?

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Gabriel
Gabriel 2016-6-6
I need to draw several ROI's using for example "imfreehand". I would like that the user draw as many ROI's as he/she wants, and when done, press the mouse right button and end the selection. Also, The user should be able to delete any ROI that he/she may think it is wrong.
Can anyone, tell me how can I implement it?

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