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Segmentation

Once the matching Annotation mode is selected, clicking an image in the Dataset tab opens the Annotation Tool dialog.

Segmentation Annotation

Create pixel-precise masks to delineate object boundaries.

ShortcutToolDescription
BBrushPaint mask regions directly onto the image
SSmartFillDraw a rectangle — SAM automatically fills the enclosed mask
EEraserRemove parts of existing masks
RFill RegionFills a region using the selected label
ControlRangeDescription
Brush size4–120 pxAdjustable via slider
Opacity0–100%Controls mask overlay transparency
Segmentation toggletrue/falseToggles the visibility of the segmentation bitmap