draw circle for ROI in an image ?

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Mohannad Nasir
Mohannad Nasir 2019-1-17
评论： Benjamin Drewry 2019-10-3
Hello , I'm doing image processing in optical disc detection , i had database and i want to make a circle around the optical disc itself manually
how can i do that in order to make an mask and compare with it ?
Best regards

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Image Analyst
Image Analyst 2019-1-17
编辑：Image Analyst 2019-1-17
Try imellipse(), or imfreehand() (demo attached).

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