Utility class for image flood filling. More...

#include <FloodFiller.h>

Classes
struct	DefaultCriterion
	predefined criterion for simple reference-value based filling for 1-channel images More...

struct	ReferenceColorCriterion
	predefined criterion for simple reference-value based filling for 3-channel images More...

struct	Result
	result structure, returned by the 'apply' methods More...

Public Member Functions
const Result &	apply (const core::ImgBase *image, const utils::Point &seed, double referenceValue, double threshold)
	flood-fills the given grayscale image starting from given seed point. More...

const Result &	applyColor (const core::ImgBase *image, const utils::Point &seed, double refR, double refG, double refB, double threshold)
	flood-fills the given 3-channel image starting from the given seed point More...

template<class T , class Criterion >
const Result &	applyGeneric (const core::Img< T > &image, const utils::Point &seed, Criterion crit)
	generic grayscale image floodfilling using an arbitrary filling criterion More...

template<class T , class Criterion3Channels >
const Result &	applyColorGeneric (const core::Img< T > &image, const utils::Point &seed, Criterion3Channels crit)
	generic floodfilling algorithm for 3-channel color images More...

Public Attributes
struct ICLCV_API icl::cv::FloodFiller::Result	result

Private Member Functions
utils::Rect	prepare (const utils::Size &imageSize, const utils::Point &seed)
	internal utility method More...

Private Attributes
std::vector< utils::Point >	futurePoints
	internal list of to-be-processed points More...

Detailed Description

Utility class for image flood filling.

The flood filler implements a generic flood filling algorithm. Starting with a seed region that contains just a single point, the flood filler will collect all adjacent pixels of this region recursively that meet a certain criterion. The criterion is the template parameter of the FloodFiller's icl::FloodFiller::applyGeneric template method. For convenience, the most common criterions are pre-coded and directly usable by calling the non-template methods icl::FloodFiller::apply and icl::FloodFiller::applyColor.

Member Function Documentation

◆ apply()

const Result& icl::cv::FloodFiller::apply	(	const core::ImgBase *	image,
		const utils::Point &	seed,
		double	referenceValue,
		double	threshold
	)

flood-fills the given grayscale image starting from given seed point.

Image pixels are filled if their pixel value difference to the given referenceValue is less then the given threshold

◆ applyColor()

const Result& icl::cv::FloodFiller::applyColor	(	const core::ImgBase *	image,
		const utils::Point &	seed,
		double	refR,
		double	refG,
		double	refB,
		double	threshold
	)

flood-fills the given 3-channel image starting from the given seed point

Here, the fill-criterion is the euclidian distance to the given (refR,refG,regB) reference color, which must be less than the given threshold

◆ applyColorGeneric()

template<class T , class Criterion3Channels >

const Result& icl::cv::FloodFiller::applyColorGeneric	(	const core::Img< T > &	image,
		const utils::Point &	seed,
		Criterion3Channels	crit
	)

inline

generic floodfilling algorithm for 3-channel color images

the criterion function or functor gets all 3-channel pixel values as arguments. Take a look at the icl::Floodfiller::ReferenceColorCriterion class template for more details.

◆ applyGeneric()

template<class T , class Criterion >

const Result& icl::cv::FloodFiller::applyGeneric	(	const core::Img< T > &	image,
		const utils::Point &	seed,
		Criterion	crit
	)

inline

generic grayscale image floodfilling using an arbitrary filling criterion

The criterion-function or functor is evaluated by giving it pixel values Take a look at the icl::FloodFiller::DefaultCriterion class for more details.

◆ prepare()

utils::Rect icl::cv::FloodFiller::prepare	(	const utils::Size &	imageSize,
		const utils::Point &	seed
	)

private

internal utility method

Member Data Documentation

◆ futurePoints

std::vector<utils::Point> icl::cv::FloodFiller::futurePoints

private

internal list of to-be-processed points

◆ result

struct ICLCV_API icl::cv::FloodFiller::Result icl::cv::FloodFiller::result

The documentation for this class was generated from the following file:

/Users/alneuman/vm/icl/ICLCV/src/ICLCV/FloodFiller.h

Classes

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes