CogOCRMaxSegmenter.Execute Method (CogImage16Range, CogRectangleAffine[])

CogOCRMaxSegmenter Execute Method (CogImage16Range, CogRectangleAffine )

Cognex VisionPro

Segment several lines of characters contained within the search regions.

Namespace: Cognex.VisionPro.OCRMax
Assembly: Cognex.VisionPro.OCRMax (in Cognex.VisionPro.OCRMax.dll) Version: 65.1.0.0

Syntax

C++

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public CogOCRMaxSegmenterResult Execute(
	CogImage16Range image,
	CogRectangleAffine[] regions
)

public CogOCRMaxSegmenterResult Execute(
	CogImage16Range image,
	CogRectangleAffine[] regions
)

Public Function Execute ( 
	image As CogImage16Range,
	regions As CogRectangleAffine()
) As CogOCRMaxSegmenterResult

Public Function Execute ( 
	image As CogImage16Range,
	regions As CogRectangleAffine()
) As CogOCRMaxSegmenterResult

public:
CogOCRMaxSegmenterResult^ Execute(
	CogImage16Range^ image, 
	array<CogRectangleAffine^>^ regions
)

public:
CogOCRMaxSegmenterResult^ Execute(
	CogImage16Range^ image, 
	array<CogRectangleAffine^>^ regions
)

Parameters

image: Type: Cognex.VisionPro CogImage16Range
The Image from which to segment lines of characters.

regions: Type: Cognex.VisionPro CogRectangleAffine
The regions of interest (ROI(s)) of the image from which to segment characters (one line of characters per region).

Return Value

Type: CogOCRMaxSegmenterResult

Exceptions

Exception	Condition
CogSecurityViolationException
CogOCRMaxSegmenterParamsException	Thrown if: any region is entirely outside the image. CharacterFramgentMaxDistanceToMainLine is less than 0.0 or greater than 1.0. CharacterFragmentMainLineMinYOverlapFrac is less than 0.0 or greater than 1.0.
NotImplementedException	Thrown if: any region is partially outside the input image.
CogTransformNotLinearException	Thrown if: the image contains a non-linear transform.
CogImageAllocatedException	Thrown if the image is not allocated.
CogTimeoutExpiredException	Thrown if the Timeout expired.
ArgumentNullException	Thrown if image is null. Thrown if regions is null.
NotImplementedException	Thrown if LineRefinementMode is set to Classic.

Remarks

Segmentation is performed on the 16 bit grey pixel data after the removal of non-visible or missing pixels. If the input range image GetMaskData() returns a null visible pixel mask it is assumed that any missing pixels were removed external to the segmenter in a previous step. If the image's visible pixel mask is _not_ null, the segmenter removes the missing pixels using a neighborhood interpolation filter of the image within the region before performing segmentation.

The regions should each contain one line of characters and surrounding featureless, but possibly nonuniform and/or noisy, background; there should be no strong features in the regions other than the one line of characters.

The regions are specified in the selected space coordinates of the input image. The x-axis should be approximately parallel to the baseline of the contained line of characters, with its positive direction pointing along the reading direction. The skew should be the approximate value of the skew of the line of characters.

If AngleHalfRange is greater than zero, the angle of the line will be refined. If SkewHalfRange is greater than zero, the skew of the line will be refined.