FitArcToStripe


Performs a series of 1D stripe detections and finds an arc that best matches the detected points.

Applications:Precise detection of a ring section, whose rough location is known beforehand.

Syntax

C++
C#
Python
 
def FitArcToStripe(
	inImage: Image,
	inFittingMap: ArcFittingMap,
	inStripeScanParams: StripeScanParams,
	inStripeSelection: Selection,
	inMaxIncompleteness: float,
	inFittingMethod: CircleFittingMethod,
	/,
	*,
	inLocalBlindness: LocalBlindness | None = None,
	inOutlierSuppression: MEstimator | None = None
)
-> (
	outArc: Arc2D | None,
	outInnerArc: Arc2D | None,
	outOuterArc: Arc2D | None,
	outStripes: list[Stripe1D | None],
	outStripePoints: list[Point2D],
	outDeviationProfile: Profile | None,
	outBrightnessProfiles: list[Profile],
	outResponseProfiles: list[Profile]
)

Parameters

Name Type Range Default Description
Input value inImage Image Input image to fit arc to
Input value inFittingMap ArcFittingMap Input fitting map
Input value inStripeScanParams StripeScanParams Parameters controlling the stripe extraction process
Input value inStripeSelection Selection Selection mode of stripe
Input value inLocalBlindness LocalBlindness | None None Defines conditions in which weaker edges can be detected in the vicinity of stronger edges
Input value inMaxIncompleteness float 0.0 - 0.999 Maximal fraction of stripe points not found
Input value inFittingMethod CircleFittingMethod Method used to fit an arc
Input value inOutlierSuppression MEstimator | None None Selects a method for ignoring incorrectly detected points
Output value outArc Arc2D | None Fitted arc in the middle of found stripe
Output value outInnerArc Arc2D | None Fitted inner arc
Output value outOuterArc Arc2D | None Fitted outer arc
Output value outStripes list[Stripe1D | None] Found stripes
Output value outStripePoints list[Point2D] Extracted points of middle arc of an image stripe
Output value outDeviationProfile Profile | None Profile of distances between the actual arc points and the corresponding reference arc points
Output value outBrightnessProfiles list[Profile] Extracted image profiles
Output value outResponseProfiles list[Profile] Profiles of the edge (derivative) operator response

Hardware Acceleration

This operation supports automatic parallelization for multicore and multiprocessor systems.