When measuring labels and lots, the printing state, character spacing and contrast will influence the reading accuracy.

This section describes identifiable printing conditions.

Printing surface with patterns is difficult to identify.

Printing surface with concave convex is difficult to identify.

Narrow character spacing is difficult to identify.

A proper contrast shall be required to ensure correct reading.

Ensure appropriate contrast, if necessary, by extracting edges in "Filtering".
Processing Items List Manual, "Filtering"