A number needs a status.

Measured

measured means the value was computed directly from supplied pixels, coordinates, or a supplied runtime frame. Geometry uses pixels; area uses square pixels; normalized coordinates and ratios are unitless.

Estimated

estimated means the value depends on an inference from image evidence, such as registration. Report it as an estimate with its confidence and supported model.

Unavailable or ambiguous

unavailable means no supported value was returned. An ambiguity or no-translation classification does not imply a numerical zero. Keep the missing value missing.

Inferred association

When changed pixels overlap a supplied runtime element, the association is inferred from visible geometry. It is not proof of ownership or causality. Source locations require explicit instrumentation; candidate controls are inspection leads.

Kelra abstains when its evidence is insufficient. Do not convert unavailable results into guessed precision.