Package org.opencv.core

Class Algorithm

java.lang.Object

org.opencv.core.Algorithm

Direct Known Subclasses:

AdaptiveManifoldFilter, AlignExposures, ArucoDetector, BackgroundSubtractor, BaseCascadeClassifier, BIF, CalibrateCRF, CharucoDetector, CLAHE, ContourFitting, DenseOpticalFlow, DescriptorMatcher, DisparityFilter, DTFilter, EdgeBoxes, EdgeDrawing, ERFilter, Facemark, FaceRecognizer, FastBilateralSolverFilter, FastGlobalSmootherFilter, FastLineDetector, Feature2D, GeneralizedHough, GraphSegmentation, GuidedFilter, ImgHashBase, Layer, legacy_MultiTracker, legacy_Tracker, LineSegmentDetector, MACE, MergeExposures, PCTSignatures, PCTSignaturesSQFD, PhaseUnwrapping, Plot2d, Retina, RetinaFastToneMapping, RFFeatureGetter, RidgeDetectionFilter, Saliency, ScanSegment, SelectiveSearchSegmentation, SelectiveSearchSegmentationStrategy, SparseMatchInterpolator, SparseOpticalFlow, StatModel, StereoMatcher, StructuredEdgeDetection, StructuredLightPattern, SuperpixelLSC, SuperpixelSEEDS, SuperpixelSLIC, SyntheticSequenceGenerator, Tonemap, TransientAreasSegmentationModule, WhiteBalancer

public class Algorithm
extends java.lang.Object

This is a base class for all more or less complex algorithms in OpenCV especially for classes of algorithms, for which there can be multiple implementations. The examples are stereo correspondence (for which there are algorithms like block matching, semi-global block matching, graph-cut etc.), background subtraction (which can be done using mixture-of-gaussians models, codebook-based algorithm etc.), optical flow (block matching, Lucas-Kanade, Horn-Schunck etc.). Here is example of SimpleBlobDetector use in your application via Algorithm interface: SNIPPET: snippets/core_various.cpp Algorithm

Field Summary

Fields

Modifier and Type	Field	Description
protected long	nativeObj

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Algorithm(long addr)

Method Summary

Modifier and Type	Method	Description
static Algorithm	__fromPtr__(long addr)
void	clear()	Clears the algorithm state
boolean	empty()	Returns true if the Algorithm is empty (e.g.
java.lang.String	getDefaultName()	Returns the algorithm string identifier.
long	getNativeObjAddr()
void	save(java.lang.String filename)	Saves the algorithm to a file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nativeObj

protected final long nativeObj

Constructor Detail

Algorithm

protected Algorithm(long addr)

Method Detail

getNativeObjAddr

public long getNativeObjAddr()

__fromPtr__

public static Algorithm __fromPtr__(long addr)

clear

public void clear()

Clears the algorithm state

empty

public boolean empty()

Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read

Returns:

automatically generated

save

public void save(java.lang.String filename)

Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).

Parameters:

filename - automatically generated

getDefaultName

public java.lang.String getDefaultName()

Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string.

Returns:

automatically generated