HOGDescriptor (OpenCV 3.4.2 Java documentation)

java.lang.Object
- org.opencv.objdetect.HOGDescriptor

public class HOGDescriptor
extends java.lang.Object

Field Summary

Fields
Modifier and Type Field and Description

static int DEFAULT_NLEVELS

static int L2Hys

protected long nativeObj

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_NLEVELS`
`static int`	`L2Hys`
`protected long`	`nativeObj`

Constructor Summary

Constructors
Modifier	Constructor and Description
	`HOGDescriptor()`
`protected`	`HOGDescriptor(long addr)`
	`HOGDescriptor(Size _winSize, Size _blockSize, Size _blockStride, Size _cellSize, int _nbins)`
	`HOGDescriptor(Size _winSize, Size _blockSize, Size _blockStride, Size _cellSize, int _nbins, int _derivAperture, double _winSigma, int _histogramNormType, double _L2HysThreshold, boolean _gammaCorrection, int _nlevels, boolean _signedGradient)`
	`HOGDescriptor(java.lang.String filename)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static HOGDescriptor`	`__fromPtr__(long addr)`
`boolean`	`checkDetectorSize()`
`void`	`compute(Mat img, MatOfFloat descriptors)`
`void`	`compute(Mat img, MatOfFloat descriptors, Size winStride, Size padding, MatOfPoint locations)`
`void`	`computeGradient(Mat img, Mat grad, Mat angleOfs)`
`void`	`computeGradient(Mat img, Mat grad, Mat angleOfs, Size paddingTL, Size paddingBR)`
`void`	`detect(Mat img, MatOfPoint foundLocations, MatOfDouble weights)`
`void`	`detect(Mat img, MatOfPoint foundLocations, MatOfDouble weights, double hitThreshold, Size winStride, Size padding, MatOfPoint searchLocations)`
`void`	`detectMultiScale(Mat img, MatOfRect foundLocations, MatOfDouble foundWeights)`
`void`	`detectMultiScale(Mat img, MatOfRect foundLocations, MatOfDouble foundWeights, double hitThreshold, Size winStride, Size padding, double scale, double finalThreshold, boolean useMeanshiftGrouping)`
`protected void`	`finalize()`
`Size`	`get_blockSize()`
`Size`	`get_blockStride()`
`Size`	`get_cellSize()`
`int`	`get_derivAperture()`
`boolean`	`get_gammaCorrection()`
`int`	`get_histogramNormType()`
`double`	`get_L2HysThreshold()`
`int`	`get_nbins()`
`int`	`get_nlevels()`
`boolean`	`get_signedGradient()`
`MatOfFloat`	`get_svmDetector()`
`double`	`get_winSigma()`
`Size`	`get_winSize()`
`static MatOfFloat`	`getDaimlerPeopleDetector()`
`static MatOfFloat`	`getDefaultPeopleDetector()`
`long`	`getDescriptorSize()`
`long`	`getNativeObjAddr()`
`double`	`getWinSigma()`
`boolean`	`load(java.lang.String filename)`
`boolean`	`load(java.lang.String filename, java.lang.String objname)`
`void`	`save(java.lang.String filename)`
`void`	`save(java.lang.String filename, java.lang.String objname)`
`void`	`setSVMDetector(Mat _svmdetector)`

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nativeObj
```
protected final long nativeObj
```

L2Hys
```
public static final int L2Hys
```
See Also:

Constant Field Values

DEFAULT_NLEVELS
```
public static final int DEFAULT_NLEVELS
```
See Also:

Constant Field Values

Constructor Detail

HOGDescriptor
```
protected HOGDescriptor(long addr)
```

HOGDescriptor

public HOGDescriptor(Size _winSize,
                     Size _blockSize,
                     Size _blockStride,
                     Size _cellSize,
                     int _nbins,
                     int _derivAperture,
                     double _winSigma,
                     int _histogramNormType,
                     double _L2HysThreshold,
                     boolean _gammaCorrection,
                     int _nlevels,
                     boolean _signedGradient)

HOGDescriptor

public HOGDescriptor(Size _winSize,
                     Size _blockSize,
                     Size _blockStride,
                     Size _cellSize,
                     int _nbins)

HOGDescriptor

public HOGDescriptor(java.lang.String filename)

HOGDescriptor
```
public HOGDescriptor()
```

Method Detail

getNativeObjAddr
```
public long getNativeObjAddr()
```

fromPtr

public static HOGDescriptor __fromPtr__(long addr)

checkDetectorSize
```
public boolean checkDetectorSize()
```

load

public boolean load(java.lang.String filename,
                    java.lang.String objname)

load

public boolean load(java.lang.String filename)

getWinSigma
```
public double getWinSigma()
```

getDescriptorSize
```
public long getDescriptorSize()
```

getDaimlerPeopleDetector

public static MatOfFloat getDaimlerPeopleDetector()

getDefaultPeopleDetector

public static MatOfFloat getDefaultPeopleDetector()

compute

public void compute(Mat img,
                    MatOfFloat descriptors,
                    Size winStride,
                    Size padding,
                    MatOfPoint locations)

compute

public void compute(Mat img,
                    MatOfFloat descriptors)

computeGradient

public void computeGradient(Mat img,
                            Mat grad,
                            Mat angleOfs,
                            Size paddingTL,
                            Size paddingBR)

computeGradient

public void computeGradient(Mat img,
                            Mat grad,
                            Mat angleOfs)

detect

public void detect(Mat img,
                   MatOfPoint foundLocations,
                   MatOfDouble weights,
                   double hitThreshold,
                   Size winStride,
                   Size padding,
                   MatOfPoint searchLocations)

detect

public void detect(Mat img,
                   MatOfPoint foundLocations,
                   MatOfDouble weights)

detectMultiScale

public void detectMultiScale(Mat img,
                             MatOfRect foundLocations,
                             MatOfDouble foundWeights,
                             double hitThreshold,
                             Size winStride,
                             Size padding,
                             double scale,
                             double finalThreshold,
                             boolean useMeanshiftGrouping)

detectMultiScale

public void detectMultiScale(Mat img,
                             MatOfRect foundLocations,
                             MatOfDouble foundWeights)

save

public void save(java.lang.String filename,
                 java.lang.String objname)

save

public void save(java.lang.String filename)

setSVMDetector

public void setSVMDetector(Mat _svmdetector)

get_winSize
```
public Size get_winSize()
```

get_blockSize
```
public Size get_blockSize()
```

get_blockStride
```
public Size get_blockStride()
```

get_cellSize
```
public Size get_cellSize()
```

get_nbins
```
public int get_nbins()
```

get_derivAperture
```
public int get_derivAperture()
```

get_winSigma
```
public double get_winSigma()
```

get_histogramNormType
```
public int get_histogramNormType()
```

get_L2HysThreshold
```
public double get_L2HysThreshold()
```

get_gammaCorrection
```
public boolean get_gammaCorrection()
```

get_svmDetector
```
public MatOfFloat get_svmDetector()
```

get_nlevels
```
public int get_nlevels()
```

get_signedGradient
```
public boolean get_signedGradient()
```

finalize
```
protected void finalize()
                 throws java.lang.Throwable
```
Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

Class HOGDescriptor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

nativeObj

L2Hys

DEFAULT_NLEVELS

Constructor Detail

HOGDescriptor

HOGDescriptor

HOGDescriptor

HOGDescriptor

HOGDescriptor

Method Detail

getNativeObjAddr

__fromPtr__

checkDetectorSize

load

load

getWinSigma

getDescriptorSize

getDaimlerPeopleDetector

getDefaultPeopleDetector

compute

compute

computeGradient

computeGradient

detect

detect

detectMultiScale

detectMultiScale

save

save

setSVMDetector

get_winSize

get_blockSize

get_blockStride

get_cellSize

get_nbins

get_derivAperture

get_winSigma

get_histogramNormType

get_L2HysThreshold

get_gammaCorrection

get_svmDetector

get_nlevels

get_signedGradient

finalize

fromPtr