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ImageJ2/Documentation/Image/Overlay/OverlayManager

ImageJ2's Overlay Manager is fairly similar to the ImageJ 1.x ROI Manager. See the ImageJ 1.x documentation of its ROI Manager.

However there are some major differences between them. For instance:

  • In ImageJ2 overlays are automatically added to the Overlay Manager; they do not need to be selected and added separately.
  • Overlays are also removed from the Overlay Manager when no references to them exist from any open image. Thus the Overlay Manager does not act like a storage bin for overlays. It is rather a tool for working with overlays. Overlays can still be saved to and restored from disk.
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