cvDistanceTransform

Module:	OpenCV

Calculates the distance to the closest zero pixel for each pixel of the source image.

Name	Type	Range	Description
inSrc	Image		UINT8, single-channel input image. Treated as binary.
inDistType	CvDistanceType		Type of distance.
inMaskSize	Integer	3 - 5	Size of the distance transform mask. It can be 3 or 5.
inMaskPrecise	Bool
outLabels	Image		output 2D array of labels (the discrete Voronoi diagram)
outDst	Image		Output image with calculated distances.

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type	Description
DomainError	Distance type must be one of DIST_L1, DIST_L2 or DIST_C in cvDistanceTransform.
DomainError	inMaskSize must be equal 3 or 5.
DomainError	Input image must be UINT8 single-channel in cvDistanceTransform.

This filter is available on Basic Complexity Level.