eVision.EThresholdMode Class Reference

The various modes for thresholding that are supported by eVision. More...

Inheritance diagram for eVision.EThresholdMode:

Collaboration diagram for eVision.EThresholdMode:

Static Public Attributes
int	Absolute = -2
	Reserved value.
int	Relative = -3
	Relative threshold; determines the required threshold level so that a given fraction of the image pixels lie below it.
int	MinResidue = -4
	Selects a threshold value such that the quadratic difference between the source and thresholded image is minimized.
int	MaxEntropy = -5
	Selects a threshold value such that the entropy (i.e.
int	Isodata = -6
	Selects a threshold value that lies halfway between the average dark gray value (i.e.

Detailed Description

The various modes for thresholding that are supported by eVision.

Member Data Documentation

Absolute

int eVision.EThresholdMode.Absolute = -2

static

Reserved value.

For absolute thresholding, use the threshold value itself, cast to EThresholdMode.

Isodata

int eVision.EThresholdMode.Isodata = -6

static

Selects a threshold value that lies halfway between the average dark gray value (i.e.

gray levels below the threshold) and average light gray values (i.e. gray levels above the threshold).

MaxEntropy

int eVision.EThresholdMode.MaxEntropy = -5

static

Selects a threshold value such that the entropy (i.e.

the amount of information) of the resulting thresholded image is maximized.

MinResidue

int eVision.EThresholdMode.MinResidue = -4

static

Selects a threshold value such that the quadratic difference between the source and thresholded image is minimized.

Relative

int eVision.EThresholdMode.Relative = -3

static

Relative threshold; determines the required threshold level so that a given fraction of the image pixels lie below it.