Assembly: Cognex.VisionPro.Blob (in Cognex.VisionPro.Blob.dll) Version: 65.1.0.0
| Member name | Value | Description | |
|---|---|---|---|
| Label | 0 | The connectivity label. For grey scale connectivity, the label will be 1 for blobs and 0 for holes. For labeled connectivity, this is the blob's label. | |
| Area | 1 | The area of the blob specified in units of the input image's selected space at run-time. If you have specified a hard threshold, then this measure is equal to the number of pixels in the blob. If you have specified a soft threshold, then the area is the sum of the weights (from 0.0 to 1.0) of the pixels in the blob. | |
| BoundaryPixelLength | 2 | The length of the pixel aligned boundary of this blob specified in image pixel units. This measure is computed by taking measuring the length of a boundary drawn along the outside edge of each pixel that makes up the blob. This measure is not available when using whole-image connectivity. | |
| Perimeter | 3 | The perimeter of the blob specified in units of the input image's selected space at run-time. This measure is a corrected version of the BoundaryPixelLength that adjusts for the tendency of BoundaryPixelLength to overstate the true blob perimeter. Not available for whole-image connectivity. | |
| NumUnfilteredChildren | 4 | The number of children of this blob before any filter criteria are applied. | |
| CenterMassX | 5 | The x-coordinate of the center of mass of the blob specified in units of the input image's selected space at run-time. | |
| CenterMassY | 6 | The y-coordinate of the center of mass of the blob specified in units of the input image's selected space at run-time. | |
| InertiaX | 7 | The second moment of inertia of the blob about an axis drawn through the blob's center of mass and parallel to the Y-axis of selected space of the input image. | |
| InertiaY | 8 | The second moment of inertia of the blob about an axis drawn through the blob's center of mass and parallel to the X-axis of selected space of the input image. | |
| InertiaMin | 9 | The blob's second moment of inertia about the principal axis of the blob. | |
| InertiaMax | 10 | The blob's second moment of inertia about the second principal axis of the blob. | |
| Elongation | 11 | InertiaMax to InertiaMin. | |
| Angle | 12 | The angle of the principal axis of the blob specified in units of the input image's selected space at run-time. The angle is measured from the X-axis of the selected space to the principal axis of the blob and is in the range -À/2 radians to +À/2 radians. This value is not very meaningful if the elongation measure is very close to one. | |
| Acircularity | 13 | The acircularity of this blob as defined by the formula: Perimeter^2 / (4 x PI x Area). This measure is not available when using whole-image connectivity. | |
| AcircularityRms | 14 | The acircularity of this blob as defined by the normalized RMS deviation of the boundary point radius values from r0, where r0is the square root of the blob's area divided by pi. This measure is not available when using whole-image connectivity. | |
| BoundingBoxPixelAlignedNoExcludeCenterX | 15 | The x-coordinate of the center point of the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeCenterY | 16 | The y-coordinate of the center point of the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeMinX | 17 | The minimum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeMaxX | 18 | The maximum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeMinY | 19 | The minimum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeMaxY | 20 | The maximum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeWidth | 21 | The width of the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeHeight | 22 | The height of the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| BoundingBoxPixelAlignedNoExcludeAspect | 23 | The ratio of height to width of the smallest rectangle that completely encloses the blob and is aligned with the pixels of the image. No exclude extrema settings are used for this calculation. | |
| MedianExtremaAngleX | 24 | The x-coordinate of the point through which two orthogonal lines each divide the blob's area in half. The orthogonal lines are aligned with the angle specified by ExtremaAngle. The value of x is specified in units of the input image's selected space. | |
| MedianExtremaAngleY | 25 | The y-coordinate of the point through which two orthogonal lines each divide the blob's area in half. The orthogonal lines are aligned with the angle specified by ExtremaAngle. The value of y is specified in units of the input image's selected space. | |
| BoundingBoxExtremaAngleCenterX | 26 | The x-coordinate of the center point of the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. | |
| BoundingBoxExtremaAngleCenterY | 27 | The y-coordinate of the center point of the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. | |
| BoundingBoxExtremaAngleMinX | 28 | The minimum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with ExtremaAngle property. | |
| BoundingBoxExtremaAngleMaxX | 29 | The maximum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle specified by ExtremaAngle. | |
| BoundingBoxExtremaAngleMinY | 30 | The minimum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle specified by ExtremaAngle. | |
| BoundingBoxExtremaAngleMaxY | 31 | The maximum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle specified by ExtremaAngle. | |
| BoundingBoxExtremaAngleWidth | 32 | The width of the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. | |
| BoundingBoxExtremaAngleHeight | 33 | The height of the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. | |
| BoundingBoxExtremaAngleAspect | 34 | The ratio of height to width of the smallest rectangle that completely encloses the blob and is aligned with the angle specified by the ExtremaAngle property. | |
| BoundingBoxPrincipalAxisMinX | 35 | The minimum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by rotated by the angle of the blob's principal axis. | |
| BoundingBoxPrincipalAxisMaxX | 36 | The maximum x-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle of the blob's principal axis. | |
| BoundingBoxPrincipalAxisMinY | 37 | The minimum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle of the blob's principal axis. | |
| BoundingBoxPrincipalAxisMaxY | 38 | The maximum y-coordinate enclosed by the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. This measure is specified in a coordinate space which is a rotated and translated version of the input image's selected space. The origin of the new space is the blob's center of mass and is rotated by the angle of the blob's principal axis. | |
| BoundingBoxPrincipalAxisWidth | 39 | The width of the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. | |
| BoundingBoxPrincipalAxisHeight | 40 | The height of the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. | |
| BoundingBoxPrincipalAxisAspect | 41 | The ratio of height to width of the smallest rectangle that completely encloses the blob and is aligned with the blob's principal axis. | |
| NotClipped | 42 | This measure will be 1.0 if the blob was not clipped during processing. It will be zero if the blob touches the edge of the region of interest, or the edge of the run-time image, or any Don't Care pixel in the InputImageMask. |