NIST Fingerprint Image Quality 2
Fingerprint image quality assessment tool
Variables
NFIQ2::Identifiers::ActionableQualityFeedback Namespace Reference

Identifiers for interpretation of quality features that may indicated corrective measures for subsequent captures of the same subject. More...

Variables

const char EmptyImageOrContrastTooLow []
 The image is blank or the contrast is too low. More...
 
const char UniformImage []
 Standard deviation of gray levels in image indicates uniformity. More...
 
const char FingerprintImageWithMinutiae []
 Number of minutia in image. More...
 
const char SufficientFingerprintForeground []
 Number of pixels in the computed foreground. More...
 

Detailed Description

Identifiers for interpretation of quality features that may indicated corrective measures for subsequent captures of the same subject.

Variable Documentation

◆ EmptyImageOrContrastTooLow

const char NFIQ2::Identifiers::ActionableQualityFeedback::EmptyImageOrContrastTooLow[]
extern

The image is blank or the contrast is too low.

The mean gray level appears white.

◆ UniformImage

const char NFIQ2::Identifiers::ActionableQualityFeedback::UniformImage[]
extern

Standard deviation of gray levels in image indicates uniformity.

◆ FingerprintImageWithMinutiae

const char NFIQ2::Identifiers::ActionableQualityFeedback::FingerprintImageWithMinutiae[]
extern

Number of minutia in image.

Note
Equivalent to QualityFeatures::Features::Minutiae::Count.

◆ SufficientFingerprintForeground

const char NFIQ2::Identifiers::ActionableQualityFeedback::SufficientFingerprintForeground[]
extern

Number of pixels in the computed foreground.