You are here: Start » FIL.NET » Function Reference » Computer Vision » Shape Fitting » FIL.FitSegmentToStripe_Direct
Namespace: | FilNet |
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Assembly: | FIL.NET.dll |
Syntax
public static void FitSegmentToStripe_Direct ( FilNet.Image inImage, FilNet.SegmentFittingField inFittingField, FilNet.CoordinateSystem2D? inFittingFieldAlignment, int inScanCount, int inScanWidth, FilNet.SamplingParams inSamplingParams, FilNet.StripeScanParams inStripeScanParams, FilNet.Selection inStripeSelection, FilNet.LocalBlindness? inLocalBlindness, float inMaxIncompleteness, FilNet.LineMEstimator? inOutlierSuppression, out FilNet.Segment2D? outSegment, out FilNet.Segment2D? outLeftSegment, out FilNet.Segment2D? outRightSegment, NullableRef<List<NullableRef<FilNet.Stripe1D>>> outStripes, NullableRef<List<FilNet.Point2D>> outStripePoints, NullableRef<NullableRef<FilNet.Profile>> outDeviationProfile, NullableValue<FilNet.SegmentFittingField> outAlignedFittingField, NullableRef<SafeList<FilNet.Profile>> outBrightnessProfiles, NullableRef<SafeList<FilNet.Profile>> outResponseProfiles )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
![]() | inImage | FilNet.Image | Image to fit segment to | ||
![]() | inFittingField | FilNet.SegmentFittingField | Segment fitting field | ||
![]() | inFittingFieldAlignment | FilNet.CoordinateSystem2D? | Adjusts the fitting field to the position of the inspected object | ||
![]() | inScanCount | int | <3, INF> | 10 | The number of points that will be searched to estimate the position of the segment |
![]() | inScanWidth | int | <1, INF> | 5 | The width of each scan field (in pixels) |
![]() | inSamplingParams | FilNet.SamplingParams | Parameters controlling the sampling process | ||
![]() | inStripeScanParams | FilNet.StripeScanParams | StripeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 0.6f MinMagnitude: 5.0f MaxInnerEdgeMagnitude: Nil StripePolarity: Dark MinStripeWidth: 0.0f MaxStripeWidth: Nil ) | Parameters controlling the stripe extraction process | |
![]() | inStripeSelection | FilNet.Selection | Selection mode of stripe | ||
![]() | inLocalBlindness | FilNet.LocalBlindness? | Defines conditions in which weaker edges can be detected in the vicinity of stronger edges | ||
![]() | inMaxIncompleteness | float | <0.0f, 0.999f> | 0.1f | Maximal fraction of stripe points not found |
![]() | inOutlierSuppression | FilNet.LineMEstimator? | Selects a method for ignoring incorrectly detected points | ||
![]() | outSegment | FilNet.Segment2D? | Fitted segment in the middle of found stripe | ||
![]() | outLeftSegment | FilNet.Segment2D? | Fitted left segment | ||
![]() | outRightSegment | FilNet.Segment2D? | Fitted right segment | ||
![]() | outStripes | FilNet.NullableRef<System.Collections.Generic.List<FilNet.NullableRef<FilNet.Stripe1D>>> | Found stripes | ||
![]() | outStripePoints | FilNet.NullableRef<System.Collections.Generic.List<FilNet.Point2D>> | Extracted points of middle segment of an image stripe | ||
![]() | outDeviationProfile | FilNet.NullableRef<FilNet.NullableRef<FilNet.Profile>> | Profile of distances between the actual segment points and the corresponding reference segment points | ||
![]() | outAlignedFittingField | FilNet.NullableValue<FilNet.SegmentFittingField> | Fitting field used; in the image coordinate system | ||
![]() | outBrightnessProfiles | FilNet.NullableRef<FilNet.SafeList<FilNet.Profile>> | Extracted image profiles | ||
![]() | outResponseProfiles | FilNet.NullableRef<FilNet.SafeList<FilNet.Profile>> | Profiles of the edge (derivative) operator response |
Description
The operation tries to fit a given segment to stripe present in the inImage image. Internally, it performs a series of scans with the ScanSingleStripe_Direct filter along inScanCount specific scan segments which length is always equal to the inFittingField width and cannot be less than 4. The found points are then used to determine the actual position of the segment in the image. Only inMaxIncompleteness fraction of these scans may fail. If the fitting according to the given parameters is not possible, outSegment is set to Nil.
Examples

Fitting a segment to the dark stripe of a nail
(inStripeScanParams.Polarity = Dark).
Remarks
Read more about Local Coordinate Systems in Machine Vision Guide: Local Coordinate Systems.
This filter is a part of the Shape Fitting toolset. To read more about this technique, one can refer to the Shape Fitting chapter of our Machine Vision Guide
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.
Hardware acceleration settings may be manipulated with Settings class.
Function Overrides
- FitSegmentToStripe_Direct(Image, SegmentFittingField, Int32, Int32, SamplingParams, StripeScanParams, Selection, Single, Nullable<Segment2D>, Nullable<Segment2D>, Nullable<Segment2D>)
- FitSegmentToStripe_Direct(Image, SegmentFittingField, Nullable<CoordinateSystem2D>, Int32, Int32, SamplingParams, StripeScanParams, Selection, Nullable<LocalBlindness>, Single, Nullable<LineMEstimator>, Nullable<Segment2D>, Nullable<Segment2D>, Nullable<Segment2D>)
- FitSegmentToStripe_Direct(Image, SegmentFittingField, Nullable<CoordinateSystem2D>, Int32, Int32, SamplingParams, StripeScanParams, Selection, Nullable<LocalBlindness>, Single, Nullable<LineMEstimator>, Nullable<Segment2D>, Nullable<Segment2D>, Nullable<Segment2D>, IList<NullableRef<Stripe1D>>, IList<Point2D>, INullable<Profile>, SegmentFittingField, IList<Profile>, IList<Profile>, IList<Segment2D>, IList<Rectangle2D>)
- FitSegmentToStripe_Direct(Image, SegmentFittingField, Nullable<CoordinateSystem2D>, Int32, Int32, SamplingParams, StripeScanParams, Selection, Nullable<LocalBlindness>, Single, Nullable<LineMEstimator>, Nullable<Segment2D>, Nullable<Segment2D>, Nullable<Segment2D>, NullableRef<List<NullableRef<Stripe1D>>>, NullableRef<List<Point2D>>, NullableRef<NullableRef<Profile>>, NullableValue<SegmentFittingField>, NullableRef<SafeList<Profile>>, NullableRef<SafeList<Profile>>, IList<Segment2D>, IList<Rectangle2D>)