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

#include <SimpleBlobSearcher.h>

Inheritance diagram for icl::cv::SimpleBlobSearcher:

Classes
struct	Blob
	Internal blob-result type. More...

Public Member Functions
	SimpleBlobSearcher ()
	Default constructor. More...

	~SimpleBlobSearcher ()
	Destructor. More...

void	add (const core::Color &color, float thresh, const utils::Range32s &sizeRange)
	Adds a new reference color, with threshold and size range. More...

void	adapt (int index, const core::Color &color, float thresh, const utils::Range32s &sizeRange)
	Updates data for given index. More...

void	remove (int index)
	removes reference color at given index More...

void	clear ()

const std::vector< Blob > &	detect (const core::Img8u &image)
	Actual detection function (no ROI support yet!) More...

Private Attributes
Data *	m_data
	internal data pointer More...

Additional Inherited Members
Protected Member Functions inherited from icl::utils::Uncopyable
	Uncopyable ()
	Empty base constructor. More...

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

$\{R_i | i \in \{1,N\} \}$

with

$R_i=(\mbox{RC}_i,\mbox{T}_i,\mbox{S}_i,\mbox{RD}_i, \mbox{BUF}_i)$

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 $I$

Actual Algorithm (Step by Step)

clear(OUTPUT_DATA)
SIZE <- size(I)
set_size( $\mbox{BUF}_i$ ,SIZE)
for all pixels (X,Y) in I
- $\mbox{BUF}_i \leftarrow 255 * ( |I(x,y)-\mbox{RC}_i| < T_i )$
for
- $\mbox{Regions}_i \leftarrow \mbox{RD}_i.detect(\mbox{BUF}_i)$
- for all
  - OUTPUT_DATA.add(SimpleBlobSearcher::Blob( , , i)

Constructor & Destructor Documentation

◆ SimpleBlobSearcher()

icl::cv::SimpleBlobSearcher::SimpleBlobSearcher ( )

Default constructor.

◆ ~SimpleBlobSearcher()

icl::cv::SimpleBlobSearcher::~SimpleBlobSearcher ( )

Destructor.

Member Function Documentation

◆ adapt()

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

Updates data for given index.

◆ add()

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.

◆ clear()

void icl::cv::SimpleBlobSearcher::clear ( )

◆ detect()

const std::vector<Blob>& icl::cv::SimpleBlobSearcher::detect ( const core::Img8u & image )

Actual detection function (no ROI support yet!)

detects blobs in given image

◆ remove()

void icl::cv::SimpleBlobSearcher::remove ( int index )

removes reference color at given index

Member Data Documentation

◆ m_data

Data* icl::cv::SimpleBlobSearcher::m_data

private

internal data pointer

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

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

Classes

Public Member Functions

Private Attributes

Additional Inherited Members