Connected components

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

Detailed Description

Connected components.

Tutorials

If you are interested in image processing, you may have a look at

• Tutorial: Connected-components labeling

Function Documentation

connectedComponents()

VISP_EXPORT void VISP_NAMESPACE_NAME::connectedComponents	(	const VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I,
		VISP_NAMESPACE_ADDRESSING vpImage< int > &	labels,
		int &	nbComponents,
		const VISP_NAMESPACE_ADDRESSING vpImageMorphology::vpConnexityType &	connexity = VISP_NAMESPACE_ADDRESSING 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.

References vpImageMorphology::CONNEXITY_4.

floodFill()

VISP_EXPORT void VISP_NAMESPACE_NAME::floodFill	(	VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I,
		const VISP_NAMESPACE_ADDRESSING vpImagePoint &	seedPoint,
		const unsigned char	oldValue,
		const unsigned char	newValue,
		const VISP_NAMESPACE_ADDRESSING vpImageMorphology::vpConnexityType &	connexity = VISP_NAMESPACE_ADDRESSING 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.

References vpImageMorphology::CONNEXITY_4.

Referenced by fillHoles().