Incorrectly marked objects can cause errors in tracking the objects.

Important tips for good markings:

• Good Marks: mark most of the object’s body and minimize the blue markings outside of the object 

• Bad Marks: marks that are too big or too small cause errors

• For curled objects, mark the object’s general angle
• If your object is a permanently round object like cells, you can click on the same object in the same place three times. 

 

Remember: Use the “Brush Size” bar to change the size of the object markings!