use of boofcv.abst.feature.detect.interest.ConfigSiftDetector in project BoofCV by lessthanoptimal.
the class FactoryDetectDescribe method sift.
/**
* Creates a new SIFT feature detector and describer.
*
* @see CompleteSift
*
* @param config Configuration for the SIFT detector and descriptor.
* @return SIFT
*/
public static <T extends ImageGray<T>> DetectDescribePoint<T, BrightFeature> sift(@Nullable ConfigCompleteSift config) {
if (config == null)
config = new ConfigCompleteSift();
ConfigSiftScaleSpace configSS = config.scaleSpace;
ConfigSiftDetector configDetector = config.detector;
ConfigSiftOrientation configOri = config.orientation;
ConfigSiftDescribe configDesc = config.describe;
SiftScaleSpace scaleSpace = new SiftScaleSpace(configSS.firstOctave, configSS.lastOctave, configSS.numScales, configSS.sigma0);
OrientationHistogramSift<GrayF32> orientation = new OrientationHistogramSift<>(configOri.histogramSize, configOri.sigmaEnlarge, GrayF32.class);
DescribePointSift<GrayF32> describe = new DescribePointSift<>(configDesc.widthSubregion, configDesc.widthGrid, configDesc.numHistogramBins, configDesc.sigmaToPixels, configDesc.weightingSigmaFraction, configDesc.maxDescriptorElementValue, GrayF32.class);
NonMaxSuppression nns = FactoryFeatureExtractor.nonmax(configDetector.extract);
NonMaxLimiter nonMax = new NonMaxLimiter(nns, configDetector.maxFeaturesPerScale);
CompleteSift dds = new CompleteSift(scaleSpace, configDetector.edgeR, nonMax, orientation, describe);
return new DetectDescribe_CompleteSift<>(dds);
}
use of boofcv.abst.feature.detect.interest.ConfigSiftDetector in project BoofCV by lessthanoptimal.
the class FactoryInterestPointAlgs method sift.
/**
* Creates a SIFT detector
*/
public static SiftDetector sift(@Nullable ConfigSiftScaleSpace configSS, @Nullable ConfigSiftDetector configDetector) {
if (configSS == null)
configSS = new ConfigSiftScaleSpace();
if (configDetector == null)
configDetector = new ConfigSiftDetector();
NonMaxLimiter nonmax = FactoryFeatureExtractor.nonmaxLimiter(configDetector.extract, configDetector.maxFeaturesPerScale);
SiftScaleSpace ss = new SiftScaleSpace(configSS.firstOctave, configSS.lastOctave, configSS.numScales, configSS.sigma0);
return new SiftDetector(ss, configDetector.edgeR, nonmax);
}
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