Enum ConfidenceSemantics 

pub enum ConfidenceSemantics {
    Legibility {
        scale_max: f64,
    },
    Uncalibrated,
    None,
}

How a backend’s reported page-level confidence must be interpreted.

Backend confidence scores are not interchangeable. Tesseract’s mean word confidence is a classifier score validated to track legibility on a 0-100 scale. Sceptre (EasyOCR-based) reports a length-penalised custom_mean that is rescaled into the same 0-100 range but is not comparable — its ordering can be inverted relative to legibility (a dense prose page can score lower than a nearly-blank one). A page-rejection gate calibrated on Tesseract’s scale was once applied unconditionally to sceptre’s output and rejected every page of a 16-page document, emptying it. This descriptor exists so gating code can ask a backend what its number means instead of assuming.

Variants

Legibility

Validated to track legibility on a known scale — usable as an absolute quality gate.

Fields

scale_max: f64

The upper bound of the reported confidence scale (e.g. 100.0 for Tesseract).

Uncalibrated

A number is reported, but it is not validated to correlate with legibility. Never gate on it.

None

No page-level confidence is reported at all.

Trait Implementations

impl Clone for ConfidenceSemantics

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ConfidenceSemantics

impl Debug for ConfidenceSemantics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ConfidenceSemantics

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ConfidenceSemantics

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ConfidenceSemantics

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ConfidenceSemantics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ConfidenceSemantics