• It's possible to leave some image regions non-annotated.
• The ML segmentation algorithm only uses annotated pixels for training.
• Explicit annotation of the background is required.
• Objects must be fully annotated without the use of "scribble" annotations.
• Ensure that objects are separated by at least one pixel of background class for accurate instance segmentation.
• The accuracy of annotations directly impacts the resulting model and segmentation.
• Accurate annotation of borders between objects or classes is critical.