NIST Fingerprint Image Quality 2
Fingerprint image quality assessment tool
Namespaces | Variables
nfiq2_constants.hpp File Reference
#include <nfiq2_data.hpp>
#include <string>
#include <vector>

Go to the source code of this file.

Namespaces

namespace  NFIQ2
 Classes and functions that contribute to the calculation of NFIQ 2 quality scores.
 
namespace  NFIQ2::Identifiers
 Identification strings for various objects.
 
namespace  NFIQ2::Identifiers::CBEFF
 CBEFF quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::OrientationCertainty
 Orientation certainty quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::LocalClarity
 Local clarity quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::FrequencyDomainAnalysis
 Frequency domain analysis quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::RidgeValleyUniformity
 Ridge valley uniformity quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::OrientationFlow
 Orientation flow quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::Contrast
 Image contrast quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::Minutiae
 Minutie-based quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::CBEFF::RegionOfInterest
 Region of interest quality algorithm identifiers.
 
namespace  NFIQ2::Identifiers::ActionableQualityFeedback
 Identifiers for interpretation of quality features that may indicated corrective measures for subsequent captures of the same subject.
 
namespace  NFIQ2::Identifiers::PredictionModules
 Modules that combine features to compute a quality score.
 
namespace  NFIQ2::Identifiers::QualityModules
 Modules that compute one or more QualityFeatures.
 
namespace  NFIQ2::Identifiers::QualityFeatures
 Identifiers of individual quality features and modules.
 
namespace  NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis
 Frequency of the sinusoid following the ridge-valley structure.
 
namespace  NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram
 Local quality values represented as a histogram.
 
namespace  NFIQ2::Identifiers::QualityFeatures::Minutiae
 Measures relative to minutiae detected within the image using the integrated feature extractor, FingerJet FX OSE.
 
namespace  NFIQ2::Identifiers::QualityFeatures::RegionOfInterest
 Measures based on the foreground area of the image.
 
namespace  NFIQ2::Identifiers::QualityFeatures::LocalClarity
 Measure of the clarity of ridge and valleys.
 
namespace  NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram
 Local quality values represented as a histogram.
 
namespace  NFIQ2::Identifiers::QualityFeatures::Contrast
 Measure of the gray levels of the image.
 
namespace  NFIQ2::Identifiers::QualityFeatures::OrientationCertainty
 Measure of the strength of the energy concentration along the dominant ridge flow orientation.
 
namespace  NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram
 Local quality values represented as a histogram.
 
namespace  NFIQ2::Identifiers::QualityFeatures::OrientationFlow
 Measure of the ridge flow continuity, based on the absolute orientation difference between a block in its 8-neighborhood.
 
namespace  NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram
 Local quality values represented as a histogram.
 
namespace  NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity
 Measure of the consistency of ridge and valley widths.
 
namespace  NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram
 Local quality values represented as a histogram.
 
namespace  NFIQ2::Thresholds
 Threshold constants.
 
namespace  NFIQ2::Thresholds::ActionableQualityFeedback
 Thresholds corresponding to Identifiers::ActionableQualityFeedback.
 

Variables

const unsigned int NFIQ2::Identifiers::CBEFF::Vendor
 Quality algorithm vendor. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::NFIQ2Rev0
 Unified quality score (NFIQ 2.0). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::NFIQ2Rev1
 Unified quality score (NFIQ 2.1). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::NFIQ2Rev2
 Unified quality score (NFIQ 2.2). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::UnifiedQualityScore
 Unified quality score (ISO/IEC 29794-4). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::OrientationCertainty::Mean
 Mean of local orientation certainty level. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::OrientationCertainty::StdDev
 Standard deviation of local orientation certainty level. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::LocalClarity::Mean
 Mean of local clarity score. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::LocalClarity::StdDev
 Standard deviation of local clarity score. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::FrequencyDomainAnalysis::Mean
 Mean of local frequency domain analysis. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::FrequencyDomainAnalysis::StdDev
 Standard deviation of local frequency domain analysis. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RidgeValleyUniformity::Mean
 Mean of local ridge valley uniformity. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RidgeValleyUniformity::StdDev
 Standard deviation of local ridge valley uniformity. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::OrientationFlow::Mean
 Mean of local orientation flow. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::OrientationFlow::StdDev
 Standard deviation of orientation flow. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Contrast::Mean
 Average contrast ("MU"). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Contrast::MeanBlock
 Average of average constrasts ("MMB"). More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Minutiae::Count
 Minutiae count. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Minutiae::CountCOM
 Minutiae count in center of mass. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Minutiae::QualityMu2
 Minutiae quality based on image mean. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Minutiae::QualityOCL80
 Minutiae quality based on orientation certainty level. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RegionOfInterest::Mean
 Region of interest image mean. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RegionOfInterest::CoherenceSum
 Region of interest orientation map coherence sum. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RegionOfInterest::CoherenceMean
 Region of interest relative orientation map coherence sum. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::RadialPowerSpectrum
 Radial power spectrum. More...
 
const unsigned int NFIQ2::Identifiers::CBEFF::Gabor
 Gabor quality score. More...
 
const char NFIQ2::Identifiers::ActionableQualityFeedback::EmptyImageOrContrastTooLow []
 The image is blank or the contrast is too low. More...
 
const char NFIQ2::Identifiers::ActionableQualityFeedback::UniformImage []
 Standard deviation of gray levels in image indicates uniformity. More...
 
const char NFIQ2::Identifiers::ActionableQualityFeedback::FingerprintImageWithMinutiae []
 Number of minutia in image. More...
 
const char NFIQ2::Identifiers::ActionableQualityFeedback::SufficientFingerprintForeground []
 Number of pixels in the computed foreground. More...
 
const char NFIQ2::Identifiers::PredictionModules::RandomForest []
 Identifier for the RandomForest prediction module. More...
 
const char NFIQ2::Identifiers::QualityModules::FrequencyDomainAnalysis []
 Identifier for the FrequencyDomainAnalysis feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::MinutiaeCount []
 Identifier for the MinutiaeCount feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::MinutiaeQuality []
 Identifier for the MinutiaeQuality feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::LocalClarity []
 Identifier for the LocalClarity feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::Contrast []
 Identifier for the Contrast feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::OrientationCertainty []
 Identifier for the OrientationCertainty feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::OrientationFlow []
 Identifier for the OrientationFlow feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::RegionOfInterestMean []
 Identifier for the RegionOfInterestMean feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::RegionOfInterestCoherence []
 Identifier for the RegionOfInterestCoherence feature module. More...
 
const char NFIQ2::Identifiers::QualityModules::RidgeValleyUniformity []
 Identifier for the RidgeValleyUniformity feature module. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin0 []
 First of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin1 []
 Second of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin2 []
 Third of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin3 []
 Fourth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin4 []
 Fifth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin5 []
 Sixth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin6 []
 Seventh of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin7 []
 Eighth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin8 []
 Ninth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Histogram::Bin9 []
 Tenth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::Mean []
 Mean of local quality value. More...
 
const char NFIQ2::Identifiers::QualityFeatures::FrequencyDomainAnalysis::StdDev []
 Standard deviation of local quality values. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Minutiae::Count []
 Number of minutiae in the image. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Minutiae::CountCOM []
 Number of minutiae lying in a 200x200 pixel rectangle centered at the center of mass of the locations of all detected minutia. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Minutiae::QualityMu2 []
 Percentage of minutiae whose quality value, as determined by Contrast::Mean of a 32x32 pixel region centered on the minutiae, is between 0-0.5. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Minutiae::QualityOCL80 []
 Percentage of minutiae whose quality value, as determined by the Orientation Certainty Level of a 32x32 pixel region centered on the minutiae, is above 80. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RegionOfInterest::Mean []
 Mean grayscale value of the number of 32x32 pixel regions having at least 1 pixel in the ROI. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RegionOfInterest::CoherenceSum []
 Sum of coherence values over all 16x16 pixel regions within the ROI. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RegionOfInterest::CoherenceMean []
 Average of coherence values over all 16x16 pixel regions within the ROI. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin0 []
 First of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin1 []
 Second of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin2 []
 Third of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin3 []
 Fourth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin4 []
 Fifth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin5 []
 Sixth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin6 []
 Seventh of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin7 []
 Eighth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin8 []
 Ninth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Histogram::Bin9 []
 Tenth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::Mean []
 Mean of local quality value. More...
 
const char NFIQ2::Identifiers::QualityFeatures::LocalClarity::StdDev []
 Standard deviation of local quality values. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Contrast::Mean []
 Arithmetic mean of the image. More...
 
const char NFIQ2::Identifiers::QualityFeatures::Contrast::MeanBlock []
 Arithmetic mean of per-block means of the image. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin0 []
 First of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin1 []
 Second of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin2 []
 Third of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin3 []
 Fourth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin4 []
 Fifth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin5 []
 Sixth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin6 []
 Seventh of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin7 []
 Eighth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin8 []
 Ninth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Histogram::Bin9 []
 Tenth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::Mean []
 Mean of local quality value. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationCertainty::StdDev []
 Standard deviation of local quality values. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin0 []
 First of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin1 []
 Second of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin2 []
 Third of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin3 []
 Fourth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin4 []
 Fifth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin5 []
 Sixth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin6 []
 Seventh of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin7 []
 Eighth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin8 []
 Ninth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Histogram::Bin9 []
 Tenth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::Mean []
 Mean of local quality value. More...
 
const char NFIQ2::Identifiers::QualityFeatures::OrientationFlow::StdDev []
 Standard deviation of local quality values. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin0 []
 First of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin1 []
 Second of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin2 []
 Third of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin3 []
 Fourth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin4 []
 Fifth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin5 []
 Sixth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin6 []
 Seventh of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin7 []
 Eighth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin8 []
 Ninth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Histogram::Bin9 []
 Tenth of ten histogram bin boundaries. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::Mean []
 Mean of local quality value. More...
 
const char NFIQ2::Identifiers::QualityFeatures::RidgeValleyUniformity::StdDev []
 Standard deviation of local quality values. More...
 
const double NFIQ2::Thresholds::ActionableQualityFeedback::EmptyImageOrContrastTooLow
 Threshold value for IDs::EmptyImageOrContrastTooLow. More...
 
const double NFIQ2::Thresholds::ActionableQualityFeedback::UniformImage
 Threshold value for IDs::UniformImage. More...
 
const double NFIQ2::Thresholds::ActionableQualityFeedback::FingerprintImageWithMinutiae
 Threshold value for IDs::FingerprintImageWithMinutiae. More...
 
const double NFIQ2::Thresholds::ActionableQualityFeedback::SufficientFingerprintForeground
 Threshold value for IDs::SufficientFingerprintForeground. More...