Thresholding

Functions
void	BLOBID_SettingsGetThresholdType (BLOBID_UID *const option, const BLOBID_Settings *const settings)
	Returns the UID associated with the current threshold type.
void	BLOBID_SettingsSetThresholds (const double *const thresholds, BLOBID_Settings *const settings)
void	BLOBID_SettingsGetThresholds (double *const thresholds, const BLOBID_Settings *const settings)

Variables
constexpr BLOBID_UID	BLOBID_THR_NONE = 1
constexpr BLOBID_UID	BLOBID_THR_SINGLEPASS = 2
constexpr BLOBID_UID	BLOBID_THR_DOUBLEPASS = 3
constexpr BLOBID_UID	BLOBID_THR_TRIPLEPASS = 4

Detailed Description

Thresholding Type

Threshold type defines how BlobID uses thresholding logic when determining cell connectivity. The types are

• none – Do not use any thresholding
• single – Use method described by [Chan2021]
• double – Use CCL-2 method described by [Hendrickson2020] NOT IMPLEMENTED
• triple – Use CCL-3 method described by [Hendrickson2020] NOT IMPLEMENTED

Default: none

Thresholding Values

thresholds are the values used for the thresholding logic. This must be an array of 2 doubles, even if the thresholding method doesn't use all the values. The behavior for each thresholding method is:

Method	thresholds[0]	thresholds[1]	Default
"none"	-	-	[ 0.0 , 0.0 ]
"single"	1st pass	-	[ 0.1 , 0.0 ]
"double"	1st pass	-	[ 0.4 , 0.0 ]
"triple"	1st pass	2nd pass	[ 0.3 , 0.5 ]

Note: Defaults can be changed by preprocessor flags.

Function Documentation

BLOBID_SettingsGetThresholdType()

void BLOBID_SettingsGetThresholdType	(	BLOBID_UID *const	option,
		const BLOBID_Settings *const	settings
	)

Returns the UID associated with the current threshold type.

• none – BLOBID_THR_NONE
• single – BLOBID_THR_SINGLEPASS
• double – BLOBID_THR_DOUBLEPASS
• triple – BLOBID_THR_TRIPLEPASS

Parameters

option	UID
settings	The BLOBID_Settings object

BLOBID_SettingsSetThresholds()

void BLOBID_SettingsSetThresholds	(	const double *const	thresholds,
		BLOBID_Settings *const	settings
	)

Sets the threshold values.

Parameters

thresholds	Thresholding Values
settings	The BLOBID_Settings object

BLOBID_SettingsGetThresholds()

void BLOBID_SettingsGetThresholds	(	double *const	thresholds,
		const BLOBID_Settings *const	settings
	)

Get the threshold values.

Parameters

thresholds	Thresholding Values
settings	The BLOBID_Settings object

Variable Documentation

BLOBID_THR_NONE

constexpr BLOBID_UID BLOBID_THR_NONE = 1

constexpr

When passed to BLOBID_SettingsSetOption(), use none for thresholding.

BLOBID_THR_SINGLEPASS

constexpr BLOBID_UID BLOBID_THR_SINGLEPASS = 2

constexpr

When passed to BLOBID_SettingsSetOption(), use single for thresholding.

BLOBID_THR_DOUBLEPASS

constexpr BLOBID_UID BLOBID_THR_DOUBLEPASS = 3

constexpr

When passed to BLOBID_SettingsSetOption(), use double for thresholding.

BLOBID_THR_TRIPLEPASS

constexpr BLOBID_UID BLOBID_THR_TRIPLEPASS = 4

constexpr

When passed to BLOBID_SettingsSetOption(), use triple for thresholding.