icl::cv::SimpleBlobSearcher Class Reference

Utility class for region-based colored blob detection. More...

#include <SimpleBlobSearcher.h>

Inheritance diagram for icl::cv::SimpleBlobSearcher:

List of all members.

Classes
struct	Blob
	Internal blob-result type. More...
Public Member Functions
	SimpleBlobSearcher ()
	Default constructor.
	~SimpleBlobSearcher ()
	Destructor.
void	add (const core::Color &color, float thresh, const utils::Range32s &sizeRange)
	Adds a new reference color, with threshold and size range.
void	adapt (int index, const core::Color &color, float thresh, const utils::Range32s &sizeRange)
	Updates data for given index.
void	remove (int index)
	removes reference color at given index
void	clear ()
const std::vector< Blob > &	detect (const core::Img8u &image)
	Actual detection function (no ROI support yet!)
Private Attributes
Data *	m_data
	internal data pointer

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Detailed Description

Utility class for region-based colored blob detection.

The SimpleBlobSearcher is a re-implementation of the RegionBasedBlobSearcher class. It provides less features, but it's usability was increased significantly.

The Segmentation Algorithm

Prerequisites

Given: A set of reference color tuples

with

where

• RC is the actual reference color for blobs that a detected
• T is the Euclidean color distance tolerance for that reference color
• S contains min- and maximum pixel count of detected blobs of that color
• RD is an internal RegionDetector instance, dedicated for that color
• BUF is an internal image Image for that color

And a given image

Actual Algorithm (Step by Step)

• clear(OUTPUT_DATA)
• SIZE <- size(I)
• set_size( ,SIZE)
• for all pixels (X,Y) in I
  • 
• for
  • 
  • for all
    • OUTPUT_DATA.add(SimpleBlobSearcher::Blob( , , i)

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Constructor & Destructor Documentation

icl::cv::SimpleBlobSearcher::SimpleBlobSearcher

(

)

Default constructor.

icl::cv::SimpleBlobSearcher::~SimpleBlobSearcher

(

)

Destructor.

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Member Function Documentation

void icl::cv::SimpleBlobSearcher::adapt	(	int	index,
		const core::Color &	color,
		float	thresh,
		const utils::Range32s &	sizeRange
	)

Updates data for given index.

void icl::cv::SimpleBlobSearcher::add	(	const core::Color &	color,
		float	thresh,
		const utils::Range32s &	sizeRange
	)

Adds a new reference color, with threshold and size range.

void icl::cv::SimpleBlobSearcher::clear

(

)

const std::vector<Blob>& icl::cv::SimpleBlobSearcher::detect

(

const core::Img8u &

image

)

Actual detection function (no ROI support yet!)

detects blobs in given image

void icl::cv::SimpleBlobSearcher::remove

(

int

index

)

removes reference color at given index

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Member Data Documentation

Data* icl::cv::SimpleBlobSearcher::m_data [private]

internal data pointer

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

• /home/jenkins/workspace/icl-manual-trunk/icl-manual/ICLCV/src/ICLCV/SimpleBlobSearcher.h