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# Region Features

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Icon | Name | Description / Applications | Modules | |
---|---|---|---|---|

RegionArea | Computes the number of pixels contained in a region. |
FoundationLite | ||

RegionBoundingBox | Computes the smallest box containing a region. |
FoundationLite | ||

RegionBoundingBox_OrNil | Computes the smallest box containing a region; returns NIL if the region is empty. |
FoundationLite | ||

RegionBoundingCircle | Computes the smallest circle enclosing a region. |
FoundationBasic | ||

RegionBoundingCircle_OrNil | Computes the smallest circle enclosing a region; returns NIL if the region is empty. |
FoundationBasic | ||

RegionBoundingEllipse | Computes the smallest ellipse enclosing a region. |
FoundationBasic | ||

RegionBoundingEllipse_OrNil | Computes the smallest ellipse enclosing a region; returns NIL if the region is empty. |
FoundationBasic | ||

RegionBoundingParallelogram | Computes the smallest parallelogram containing a region. |
FoundationPro | ||

RegionBoundingRectangle | Computes the smallest rectangle containing a region. |
FoundationBasic | ||

RegionBoundingRectangle_FixedAngle | Computes the smallest rectangle with the given orientation angle containing a region. |
FoundationBasic | ||

RegionBoundingRectangle_FixedAngle_OrNil | Computes the smallest rectangle with the given orientation angle containing a region; returns NIL if the region is empty. |
FoundationBasic | ||

RegionBoundingRectangle_OrNil | Computes the smallest rectangle containing a region; returns NIL if the region is empty. |
FoundationBasic | ||

RegionCaliperDiameter | Computes the longest and the shortest width of the input region measured as distance between parallel lines containing the whole region. |
FoundationBasic | ||

RegionCircularity | Computes the area of a region divided by the area of a circular region having the same feature. |
FoundationBasic | ||

RegionComplexity | Calculates how much the input region's perimeter is bigger than the perimeter of a circle of the same area. |
FoundationBasic | ||

RegionContours | Computes an array of closed paths corresponding to the contours of the input region. |
FoundationBasic | ||

RegionConvexity | Computes the area of a region divided by area of its convex hull. |
FoundationBasic | ||

RegionDiameter | Computes the longest segment connecting two pixels contained in region and its length. |
FoundationBasic | ||

RegionDirectionalDispersion | Directional standard deviation of the distance of the region's points to the center. |
FoundationBasic | ||

RegionDispersion | Calculates how much more the input region's points are dispersed comparing to the points of a circle of the same area. |
FoundationBasic | ||

RegionEllipticAxes | Computes axes of an ellipse having the same first and second order moments as the given region. |
FoundationBasic | ||

RegionElongation | Computes the elongation factor of a region ( perfect circle has minimal elongation equal 1.0 ). |
FoundationBasic | ||

RegionFeatureValue | Computes the feature value of the input region. |
FoundationBasic | ||

RegionHoles | Creates regions of the holes of the input region. |
FoundationBasic | ||

RegionHoles_Elastic | Fills a ridges region with convex basins. |
FoundationBasic | ||

RegionInscribedBox | Computes the largest box contained in a region. |
FoundationBasic | ||

RegionInscribedCircle | Computes the largest circle contained in a region. |
FoundationBasic | ||

RegionMassCenter | Computes a point with coordinates equal to the average coordinates of the region's pixels. |
FoundationLite | ||

RegionMassCenter_OrNil | Computes a point with coordinates equal to the average coordinates of the region's pixels; returns NIL if the region is empty. |
FoundationLite | ||

RegionMedialAxis | Computes an array of paths corresponding to the skeleton of the input region. |
FoundationBasic | ||

RegionMoment | Computes selected second-order moment of a region in regular and normalized ( divided by region area ) variant. |
FoundationBasic | ||

RegionNumberOfHoles | Computes the number of holes in a region. |
FoundationBasic | ||

RegionOrientation | Computes the orientation of a region as an angle of value in a proper range. |
FoundationBasic | ||

RegionPerimeterLength | Computes the length of the input region perimeter. |
FoundationBasic | ||

RegionPointRunLengths | Returns the lengths of horizontal sequences of locations that constitute the input region. |
FoundationBasic | ||

RegionProjection | Computes the profile of the region pixel count in consecutive rows or columns. |
FoundationBasic | ||

RegionRectangularity | Computes the area of a region divided by the area of its bounding rectangle. |
FoundationBasic | ||

RegionsFeatureValues | Computes the feature values of the input regions. |
FoundationBasic | ||

RegionSkewness | Directional standard deviation of the distance of the region's points to the center. |
FoundationBasic | ||

RegionThickness | Diameter of the biggest inscribed circle. |
FoundationBasic |