Overview

Support for both point and rectangle foreground prompts (@petebankhead)
- Ensure each new point is a distinct object while SAM is running (i.e. turn of 'Multipoint' mode)
- Support line ROIs as a way of adding multiple points in a single object

Support point background prompts (@petebankhead)
- Points with 'ignored*' classifications are passed to the model as background prompts
  (Sidenote: it seems a large number of background points harm the prediction... or I've done something wrong)

Implement 'Live mode' and 'Run for selected' (@petebankhead)
- 'Live mode' toggle button to turn live detection on or off
- Alternative 'Run for selected' button to use only the selected foreground and background objects
  - This makes it possible to annotate first, then run SAM across multiple objects - as required on the forum

Menu items simplified to a single command to launch a dialog to control annotation with SAM (@petebankhead)
- Provide persistent preferences for key choices (e.g. server, model)
- Run prediction in a background thread with (indeterminate) progress indicator
- Help the user with tooltips (and prompts shown at the bottom of the dialog)
Handle changing the current image while the command is running (@petebankhead)
- Send entire field of view for point prediction
  This is useful for one-click annotation of visible structures
Include the 'quality' metric as a measurement for objects that are created (@petebankhead)
Support z-stacks/time series (by using the image plane; there's no support for 3D objects) (@petebankhead, @rharkes)
Optionally assign names & random colors to identify the generated objects (@petebankhead)
Optionally return multiple (3) detections instead of 1 (@petebankhead)
- Select which detection to retain based upon size or quality, or keep all of them
Optionally keep the prompt objects, instead of immediately deleting them (@petebankhead)

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