Connected components

Functions
VISP_EXPORT void	vp::connectedComponents (const vpImage< unsigned char > &I, vpImage< int > &labels, int &nbComponents, const vpImageMorphology::vpConnexityType &connexity=vpImageMorphology::CONNEXITY_4)
VISP_EXPORT void	vp::floodFill (vpImage< unsigned char > &I, const vpImagePoint &seedPoint, const unsigned char oldValue, const unsigned char newValue, const vpImageMorphology::vpConnexityType &connexity=vpImageMorphology::CONNEXITY_4)

Detailed Description

Connected components.

Function Documentation

connectedComponents()

void vp::connectedComponents	(	const vpImage< unsigned char > &	I,
		vpImage< int > &	labels,
		int &	nbComponents,
		const vpImageMorphology::vpConnexityType &	connexity = vpImageMorphology::CONNEXITY_4
	)

Perform connected components detection.

Parameters

I	: Input image (0 means background).
labels	: Label image that contain for each position the component label.
nbComponents	: Number of connected components.
connexity	: Type of connexity.

Examples

testConnectedComponents.cpp, and tutorial-connected-components.cpp.

Definition at line 107 of file vpConnectedComponents.cpp.

References vpImage< Type >::getHeight(), vpImage< Type >::getSize(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

floodFill()

void vp::floodFill	(	vpImage< unsigned char > &	I,
		const vpImagePoint &	seedPoint,
		const unsigned char	oldValue,
		const unsigned char	newValue,
		const vpImageMorphology::vpConnexityType &	connexity = vpImageMorphology::CONNEXITY_4
	)

Perform the flood fill algorithm.

Parameters

I	: Input image to flood fill.
seedPoint	: Seed position in the image.
oldValue	: Old value to replace.
newValue	: New value to flood fill.
connexity	: Type of connexity.

Examples

testFloodFill.cpp, and tutorial-flood-fill.cpp.

Definition at line 71 of file vpFloodFill.cpp.

References vpImageMorphology::CONNEXITY_4, vpImagePoint::get_i(), vpImagePoint::get_j(), vpImage< Type >::getHeight(), vpImage< Type >::getSize(), and vpImage< Type >::getWidth().

Referenced by vp::fillHoles().