Background Properties Page (Star Removal)
The settings on the Background page control the polynomial function used to fit and remove the local background subtraction around the position of the template or target object. Changing this setting results in all targets and templates being re-evaluated on all images.
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Background Method |
Select from this list the order of polynomial to fit to pixels in the background region around each object. The background is evaluated between the Middle Aperture and Outer Aperture of the marker. This affects both template samples and target objects. A 2x2 polynomial is usually a good choice since it can accommodate a constant, sloped, or twisted surface underneath the star. |
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