Properties
long	ConvexProjections `[get, set]`
	Defines the number of convex projections. More...

boolean	Entire `[get, set]`
	If this property is set to `TRUE` the area passed by the #X0, #X1,#Y0, and #Y1 properties is ignored and the complete image will be used instead to search Blobs. More...

boolean	ExtractBlobCenterAndMoments `[get, set]`
	For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated. More...

boolean	ExtractBlobConvexPerimeter `[get, set]`
	For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated. More...

boolean	ExtractBlobPerimeter `[get, set]`
	For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated. More...

boolean	ExtractBlobPixelData `[get, set]`
	For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated. More...

__int3264	Image `[get, set]`
	Defines the image object that is assigned to the Common Vision Blob Control. More...

double	MemoryUsageFactor `[get, set]`
	This property sets the memory size of internal tables. More...

long	PlaneIndex `[get, set]`
	Used to define the colour plane to be used if the image assigned to the control consists of more than one plane. More...

long	SortCenterX `[get, set]`
	If #SORT_BY_DISTANCE is selected via the #SortMode property, this value defines the x-coordinate for which the distance is calculated. More...

long	SortCenterY `[get, set]`
	If #SORT_BY_DISTANCE is selected via the #SortMode property, this value defines the y-coordinate for which the distance is calculated. More...

BlobSortMode	SortMode `[get, set]`
	Following extraction, the objects can be sorted by various criteria. More...

boolean	SortRising `[get, set]`
	Following extraction, the objects can be sorted in ascending or descending order. More...

long	ThresholdLower `[get, set]`
	Minimum grey value belonging to the object. More...

long	ThresholdUpper `[get, set]`
	Maximum grey value belonging to the object. More...

double	X0 `[get, set]`
	Returns the x-coordinate of upper left point of the the area in which the control tries to find blobs. More...

double	X1 `[get, set]`
	Returns the x-coordinate of lower right point of the the area in which the control tries to find blobs. More...

double	Y0 `[get, set]`
	Returns the y-coordinate of upper left point of the the area in which the control tries to find blobs. More...

double	Y1 `[get, set]`
	Returns the y-coordinate of lower right point of the the area in which the control tries to find blobs. More...

Detailed Description

Properties

◆ ConvexProjections

long ConvexProjections

getset

Defines the number of convex projections.

Projections are applied to the object from the sides defined by this number (see #BlobConvexPerimeter). 
The more projections, the more precise the approximation to the perimeter. 
The four basic projections (0 degree, 45 degrees, 90 degrees, 135 degree) are the default values. 

\a ConvexProjections specifies the number of projections and #ConvexPointsRetrieved returns the number of points 
on the perimeter. For example the number or projections is 4 returns 12 points on the convex perimeter shape.

Parameters

[in,out] ConvexProjections Number of convex projections.

Returns: Number of convex projections.

Supported platforms:: Win32

Related Topics:: #BlobConvexPerimeter Property
#BlobConvexPointIndex Property, #BlobConvexPointX Property and #BlobConvexPointY Property to get the coordinates of the convex shape
#ConvexPointsRetrieved Property

◆ Entire

boolean Entire

getset

If this property is set to TRUE the area passed by the #X0, #X1,#Y0, and #Y1 properties is ignored and the complete image will be used instead to search Blobs.

Parameters

[in,out] Entire Defines either the entire image or area of interest which will used for the search.

Returns: Defines if the entire image will be used to search Blobs or not.

Supported platforms:: Win32

◆ ExtractBlobCenterAndMoments

boolean ExtractBlobCenterAndMoments

getset

For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated.

Parameters

[in,out] ExtractBlobCenterAndMoments TRUE causes that the centre and moment of inertia of the found blobs are calculated.

Returns: Indicates if the centre and moment of inertia of the found blobs will be calculated or not.

Supported platforms:: Win32

Related Topics:: #ExtractBlobPerimeter Property
#ExtractBlobConvexPerimeter
#ExtractBlobPixelData

Moments
#BlobCenterX Property
#BlobCenterY Property
#BlobMinMomentAxisAngle Property

Coordinates of the axis can be retrieved using #BlobMinMomentAxisX0
#BlobMaxMoment Property and #BlobMinMoment Property
#BlobMomentRatio Property

◆ ExtractBlobConvexPerimeter

boolean ExtractBlobConvexPerimeter

getset

For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated.

Parameters

[in,out] ExtractBlobConvexPerimeter TRUE causes that the convex perimeter is calculated.

Returns: Indicates if the convex perimeter will be calculated or not.

Supported platforms:: Win32

Related Topics:: #ExtractBlobPerimeter Property
#ExtractBlobCenterAndMoments Property
#ExtractBlobPixelData Property

#BlobPerimeter and #BlobConvexPerimeter Property
#ConvexProjections Property
#BlobConvexPerimeter Property

◆ ExtractBlobPerimeter

boolean ExtractBlobPerimeter

getset

For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated.

Parameters

[in,out] ExtractBlobPerimeter TRUE causes that the perimeter is calculated.

Returns: Indicates if the perimeter will be calculated or not.

Supported platforms:: Win32

Related Topics:: #ExtractBlobPixelData Property
#ExtractBlobConvexPerimeter Property
#ExtractBlobCenterAndMoments Property

#BlobPerimeter and #BlobConvexPerimeter Property #BlobPerimeter Property

◆ ExtractBlobPixelData

boolean ExtractBlobPixelData

getset

For reasons of speed, it is possible to set different extraction modes so that unnecessary parameters are not calculated.

Parameters

[in,out] ExtractBlobPixelData TRUE causes that the streaks belonging to a blob are stored separately and can be used further with the #ResultImage.

Returns: Indicates if the streaks are stored separately or not.

Supported platforms:: Win32

Related Topics:: #ExtractBlobPerimeter Property
#ExtractBlobConvexPerimeter Property
#ExtractBlobCenterAndMoments Property

◆ Image

__int3264 Image

getset

Defines the image object that is assigned to the Common Vision Blob Control.

Attention: If you specify an invalid image the #CVCError event will be fired.

Parameters

[in,out] Image Handle to the image object.

Returns: Image object handle.

Supported platforms:: Win32

◆ MemoryUsageFactor

double MemoryUsageFactor

getset

This property sets the memory size of internal tables.

 The number for the \a MemoryUsageFactor takes the actual memory size and multiplies 
 it with the factor. Default value is \c 1.

Parameters

[in,out] MemoryUsageFactor Number to duplicate the memory.

Returns: Number to duplicate the memory.

Supported platforms:: Win32

◆ PlaneIndex

long PlaneIndex

getset

Used to define the colour plane to be used if the image assigned to the control consists of more than one plane.

Attention: Valid values are 0 to ImageDimension (cvBlob.Image). If you specify an invalid value the #CVCError event will be fired.

Parameters

[in,out] PlaneIndex Desired plane index.

Returns: Plane index.

Supported platforms:: Win32

◆ SortCenterX

long SortCenterX

getset

If #SORT_BY_DISTANCE is selected via the #SortMode property, this value defines the x-coordinate for which the distance is calculated.

Parameters

[in,out] SortCenterX X-coordinate for which the distance is calculated.

Returns: X-coordinate for which the distance is calculated.

Supported platforms:: Win32

Related Topics:: #SortResults Method
#SortMode Property
#SortCenterY Property

◆ SortCenterY

long SortCenterY

getset

If #SORT_BY_DISTANCE is selected via the #SortMode property, this value defines the y-coordinate for which the distance is calculated.

Parameters

[in,out] SortCenterY Y-coordinate for which the distance is calculated.

Returns: Y-coordinate for which the distance is calculated.

Supported platforms:: Win32

Related Topics:: #SortResults Method
#SortMode Property
#SortCenterX Property

◆ SortMode

BlobSortMode SortMode

getset

Following extraction, the objects can be sorted by various criteria.

Attention: The objects could be sorted in ascending and descending order by setting the value of #SortRising.

Parameters

[in,out] SortMode Sort mode. For possible values refer to #BlobSortMode.

Returns: Sort mode.

Supported platforms:: Win32

Related Topics:: #SortResults Method
#SortRising Property
#SortCenterX Property
#SortCenterY Property

◆ SortRising

boolean SortRising

getset

Following extraction, the objects can be sorted in ascending or descending order.

Parameters

[in,out] SortRising TRUE indicates that the objects are sorted in ascending order,
FALSE specifies that the objects are sorted in descending order.

Returns: Specifies the sort order which is either in ascending or descending order.

Supported platforms:: Win32

Related Topics:: #SortResults Method

◆ ThresholdLower

long ThresholdLower

getset

Minimum grey value belonging to the object.

The two threshold values #ThresholdUpper and \a ThresholdLower define the grey value 
range that is used for binarizing.

Parameters

[in,out] ThresholdLower Minimum grey value used for thresholding. Default = 128.

Returns: Minimum grey value for thresholding.

Supported platforms:: Win32

Related Topics:: #CVCError Event
#Execute Method
#ExecuteBinarization Method

◆ ThresholdUpper

long ThresholdUpper

getset

Maximum grey value belonging to the object.

The two threshold values \a ThresholdUpper and #ThresholdLower define the grey value 
range that is used for binarizing.

Parameters

[in,out] ThresholdUpper Maximum grey value used for thresholding. Default = 128.

Returns: Maximum grey value for thresholding.

Supported platforms:: Win32

Related Topics:: #CVCError event
#Execute method
#ExecuteBinarization Method

◆ X0

double X0

getset

Returns the x-coordinate of upper left point of the the area in which the control tries to find blobs.

Attention: If the #Entire property is set to TRUE these values will be ignored and the complete image will be used instead to detect blobs.

Parameters

[in,out] X0 X-coordinate of upper left point of the rectangular area of interest.

Returns: X-coordinate of upper left point of the rectangular area.

Supported platforms:: Win32

Related Topics:: X0, #X1, #Y0, and #Y1
#Entire Property

◆ X1

double X1

getset

Returns the x-coordinate of lower right point of the the area in which the control tries to find blobs.

Attention: If the #Entire property is set to TRUE these values will be ignored and the complete image will be used instead to detect blobs.

Parameters

[in,out] X1 X-coordinate lower right point of the rectangular area of interest.

Returns: X-coordinate of lower right point of the rectangular area.

Supported platforms:: Win32

Related Topics:: #X0, X1, #Y0, and #Y1
#Entire Property

◆ Y0

double Y0

getset

Returns the y-coordinate of upper left point of the the area in which the control tries to find blobs.

Attention: If the #Entire property is set to TRUE these values will be ignored and the complete image will be used instead to detect blobs.

Parameters

[in,out] Y0 Y-coordinate of upper left point of the rectangular area of interest.

Returns: Y-coordinate of upper left point of the rectangular area.

Supported platforms:: Win32

Related Topics:: #X0, #X1, Y0, and #Y1
#Entire Property

◆ Y1

double Y1

getset

Returns the y-coordinate of lower right point of the the area in which the control tries to find blobs.

Attention: If the #Entire property is set to TRUE these values will be ignored and the complete image will be used instead to detect blobs.

Parameters

[in,out] Y1 Y-coordinate lower right point of the rectangular area of interest.

Returns: Y-coordinate of lower right point of the rectangular area.

Supported platforms:: Win32

Related Topics:: #X0, #X1, #Y0, and Y1
#Entire Property