Module refine 

Pluggable subpixel refinement backends for ChESS corners.

The default pipeline uses a 5×5 center-of-mass refinement on the response map (matching the legacy behavior). Alternative refiners operate on the original image intensity patch and provide more discriminative scores and acceptance logic.

Structs

CenterOfMassConfig

Legacy center-of-mass refinement on the response map.

CenterOfMassRefiner

ForstnerConfig

Förstner-style gradient-based refiner.

ForstnerRefiner

RefineContext

Inputs shared by refinement methods.

RefineResult

Result of refining a single corner candidate.

SaddlePointConfig

Quadratic saddle-point surface refiner.

SaddlePointRefiner

Enums

RefineStatus

Status of a refinement attempt.

Refiner

Runtime refiner with reusable scratch buffers.

RefinerKind

User-facing enum selecting a refinement backend.

Traits

CornerRefiner

Trait implemented by pluggable refinement backends.