org.bytedeco.opencv.opencv_features2d

Class DescriptorMatcher

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.opencv.opencv_core.Algorithm

org.bytedeco.opencv.opencv_features2d.DescriptorMatcher

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

BFMatcher, FlannBasedMatcher

@Namespace(value="cv")
 @NoOffset
 @Properties(inherit=opencv_features2d.class)
public class DescriptorMatcher
extends Algorithm

\addtogroup features2d_match /** \{

/** \brief Abstract base class for matching keypoint descriptors.

It has two groups of match methods: for matching descriptors of an image with another image or with an image set.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields

Modifier and Type	Field and Description
static int	BRUTEFORCE enum cv::DescriptorMatcher::MatcherType
static int	BRUTEFORCE_HAMMING enum cv::DescriptorMatcher::MatcherType
static int	BRUTEFORCE_HAMMINGLUT enum cv::DescriptorMatcher::MatcherType
static int	BRUTEFORCE_L1 enum cv::DescriptorMatcher::MatcherType
static int	BRUTEFORCE_SL2 enum cv::DescriptorMatcher::MatcherType
static int	FLANNBASED enum cv::DescriptorMatcher::MatcherType

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
DescriptorMatcher(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
void	add(GpuMatVector descriptors)
void	add(MatVector descriptors) \brief Adds descriptors to train a CPU(trainDescCollectionis) or GPU(utrainDescCollectionis) descriptor collection.
void	add(UMatVector descriptors)
void	clear() \brief Clears the train descriptor collections.
DescriptorMatcher	clone()
DescriptorMatcher	clone(boolean emptyTrainData) \brief Clones the matcher.
static DescriptorMatcher	create(BytePointer descriptorMatcherType) \brief Creates a descriptor matcher of a given type with the default parameters (using default constructor).
static DescriptorMatcher	create(int matcherType)
static DescriptorMatcher	create(String descriptorMatcherType)
boolean	empty() \brief Returns true if there are no train descriptors in the both collections.
MatVector	getTrainDescriptors() \brief Returns a constant link to the train descriptor collection trainDescCollection .
boolean	isMaskSupported() \brief Returns true if the descriptor matcher supports masking permissible matches.
void	knnMatch(GpuMat queryDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(GpuMat queryDescriptors, DMatchVectorVector matches, int k, GpuMatVector masks, boolean compactResult)
void	knnMatch(GpuMat queryDescriptors, DMatchVectorVector matches, int k, MatVector masks, boolean compactResult)
void	knnMatch(GpuMat queryDescriptors, DMatchVectorVector matches, int k, UMatVector masks, boolean compactResult)
void	knnMatch(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVectorVector matches, int k, GpuMat mask, boolean compactResult)
void	knnMatch(Mat queryDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(Mat queryDescriptors, DMatchVectorVector matches, int k, GpuMatVector masks, boolean compactResult)
void	knnMatch(Mat queryDescriptors, DMatchVectorVector matches, int k, MatVector masks, boolean compactResult) \overload
void	knnMatch(Mat queryDescriptors, DMatchVectorVector matches, int k, UMatVector masks, boolean compactResult)
void	knnMatch(Mat queryDescriptors, Mat trainDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(Mat queryDescriptors, Mat trainDescriptors, DMatchVectorVector matches, int k, Mat mask, boolean compactResult) \brief Finds the k best matches for each descriptor from a query set.
void	knnMatch(UMat queryDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(UMat queryDescriptors, DMatchVectorVector matches, int k, GpuMatVector masks, boolean compactResult)
void	knnMatch(UMat queryDescriptors, DMatchVectorVector matches, int k, MatVector masks, boolean compactResult)
void	knnMatch(UMat queryDescriptors, DMatchVectorVector matches, int k, UMatVector masks, boolean compactResult)
void	knnMatch(UMat queryDescriptors, UMat trainDescriptors, DMatchVectorVector matches, int k)
void	knnMatch(UMat queryDescriptors, UMat trainDescriptors, DMatchVectorVector matches, int k, UMat mask, boolean compactResult)
void	match(GpuMat queryDescriptors, DMatchVector matches)
void	match(GpuMat queryDescriptors, DMatchVector matches, GpuMatVector masks)
void	match(GpuMat queryDescriptors, DMatchVector matches, MatVector masks)
void	match(GpuMat queryDescriptors, DMatchVector matches, UMatVector masks)
void	match(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVector matches)
void	match(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVector matches, GpuMat mask)
void	match(Mat queryDescriptors, DMatchVector matches)
void	match(Mat queryDescriptors, DMatchVector matches, GpuMatVector masks)
void	match(Mat queryDescriptors, DMatchVector matches, MatVector masks) \overload
void	match(Mat queryDescriptors, DMatchVector matches, UMatVector masks)
void	match(Mat queryDescriptors, Mat trainDescriptors, DMatchVector matches)
void	match(Mat queryDescriptors, Mat trainDescriptors, DMatchVector matches, Mat mask) \brief Finds the best match for each descriptor from a query set.
void	match(UMat queryDescriptors, DMatchVector matches)
void	match(UMat queryDescriptors, DMatchVector matches, GpuMatVector masks)
void	match(UMat queryDescriptors, DMatchVector matches, MatVector masks)
void	match(UMat queryDescriptors, DMatchVector matches, UMatVector masks)
void	match(UMat queryDescriptors, UMat trainDescriptors, DMatchVector matches)
void	match(UMat queryDescriptors, UMat trainDescriptors, DMatchVector matches, UMat mask)
void	radiusMatch(GpuMat queryDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(GpuMat queryDescriptors, DMatchVectorVector matches, float maxDistance, GpuMatVector masks, boolean compactResult)
void	radiusMatch(GpuMat queryDescriptors, DMatchVectorVector matches, float maxDistance, MatVector masks, boolean compactResult)
void	radiusMatch(GpuMat queryDescriptors, DMatchVectorVector matches, float maxDistance, UMatVector masks, boolean compactResult)
void	radiusMatch(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(GpuMat queryDescriptors, GpuMat trainDescriptors, DMatchVectorVector matches, float maxDistance, GpuMat mask, boolean compactResult)
void	radiusMatch(Mat queryDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(Mat queryDescriptors, DMatchVectorVector matches, float maxDistance, GpuMatVector masks, boolean compactResult)
void	radiusMatch(Mat queryDescriptors, DMatchVectorVector matches, float maxDistance, MatVector masks, boolean compactResult) \overload
void	radiusMatch(Mat queryDescriptors, DMatchVectorVector matches, float maxDistance, UMatVector masks, boolean compactResult)
void	radiusMatch(Mat queryDescriptors, Mat trainDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(Mat queryDescriptors, Mat trainDescriptors, DMatchVectorVector matches, float maxDistance, Mat mask, boolean compactResult) \brief For each query descriptor, finds the training descriptors not farther than the specified distance.
void	radiusMatch(UMat queryDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(UMat queryDescriptors, DMatchVectorVector matches, float maxDistance, GpuMatVector masks, boolean compactResult)
void	radiusMatch(UMat queryDescriptors, DMatchVectorVector matches, float maxDistance, MatVector masks, boolean compactResult)
void	radiusMatch(UMat queryDescriptors, DMatchVectorVector matches, float maxDistance, UMatVector masks, boolean compactResult)
void	radiusMatch(UMat queryDescriptors, UMat trainDescriptors, DMatchVectorVector matches, float maxDistance)
void	radiusMatch(UMat queryDescriptors, UMat trainDescriptors, DMatchVectorVector matches, float maxDistance, UMat mask, boolean compactResult)
void	read(BytePointer fileName)
void	read(FileNode arg0) \brief Reads algorithm parameters from a file storage
void	read(String fileName)
void	train() \brief Trains a descriptor matcher
void	write(BytePointer fileName)
void	write(FileStorage arg0) \brief Stores algorithm parameters in a file storage
void	write(FileStorage fs, BytePointer name) \brief simplified API for language bindings \overload
void	write(FileStorage fs, String name)
void	write(String fileName)

Methods inherited from class org.bytedeco.opencv.opencv_core.Algorithm

getDefaultName, position, save, save

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

FLANNBASED

public static final int FLANNBASED

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

BRUTEFORCE

public static final int BRUTEFORCE

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

BRUTEFORCE_L1

public static final int BRUTEFORCE_L1

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

BRUTEFORCE_HAMMING

public static final int BRUTEFORCE_HAMMING

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

BRUTEFORCE_HAMMINGLUT

public static final int BRUTEFORCE_HAMMINGLUT

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

BRUTEFORCE_SL2

public static final int BRUTEFORCE_SL2

enum cv::DescriptorMatcher::MatcherType

See Also:

Constant Field Values

Constructor Detail

DescriptorMatcher

public DescriptorMatcher(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

Method Detail

add

public void add(@ByVal
                MatVector descriptors)

\brief Adds descriptors to train a CPU(trainDescCollectionis) or GPU(utrainDescCollectionis) descriptor collection.

If the collection is not empty, the new descriptors are added to existing train descriptors.

Parameters:

descriptors - Descriptors to add. Each descriptors[i] is a set of descriptors from the same train image.

add

public void add(@ByVal
                UMatVector descriptors)

add

public void add(@ByVal
                GpuMatVector descriptors)

getTrainDescriptors

@Const
 @ByRef
public MatVector getTrainDescriptors()

\brief Returns a constant link to the train descriptor collection trainDescCollection .

clear

public void clear()

\brief Clears the train descriptor collections.

Overrides:

clear in class Algorithm

empty

@Cast(value="bool")
public boolean empty()

\brief Returns true if there are no train descriptors in the both collections.

Overrides:

empty in class Algorithm

isMaskSupported

@Cast(value="bool")
public boolean isMaskSupported()

\brief Returns true if the descriptor matcher supports masking permissible matches.

train

public void train()

\brief Trains a descriptor matcher

Trains a descriptor matcher (for example, the flann index). In all methods to match, the method train() is run every time before matching. Some descriptor matchers (for example, BruteForceMatcher) have an empty implementation of this method. Other matchers really train their inner structures (for example, FlannBasedMatcher trains flann::Index ).

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByVal
                  Mat trainDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArray(cv::noArray())")
                  Mat mask)

\brief Finds the best match for each descriptor from a query set.

Parameters:

queryDescriptors - Query set of descriptors.

trainDescriptors - Train set of descriptors. This set is not added to the train descriptors collection stored in the class object.

matches - Matches. If a query descriptor is masked out in mask , no match is added for this descriptor. So, matches size may be smaller than the query descriptors count.

mask - Mask specifying permissible matches between an input query and train matrices of descriptors.

In the first variant of this method, the train descriptors are passed as an input argument. In the second variant of the method, train descriptors collection that was set by DescriptorMatcher::add is used. Optional mask (or masks) can be passed to specify which query and training descriptors can be matched. Namely, queryDescriptors[i] can be matched with trainDescriptors[j] only if mask.at\(i,j) is non-zero.

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByVal
                  Mat trainDescriptors,
                  @ByRef
                  DMatchVector matches)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByVal
                  UMat trainDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArray(cv::noArray())")
                  UMat mask)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByVal
                  UMat trainDescriptors,
                  @ByRef
                  DMatchVector matches)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByVal
                  GpuMat trainDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArray(cv::noArray())")
                  GpuMat mask)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByVal
                  GpuMat trainDescriptors,
                  @ByRef
                  DMatchVector matches)

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByVal
                     Mat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArray(cv::noArray())")
                     Mat mask,
                     @Cast(value="bool")
                     boolean compactResult)

\brief Finds the k best matches for each descriptor from a query set.

Parameters:

queryDescriptors - Query set of descriptors.

trainDescriptors - Train set of descriptors. This set is not added to the train descriptors collection stored in the class object.

mask - Mask specifying permissible matches between an input query and train matrices of descriptors.

matches - Matches. Each matches[i] is k or less matches for the same query descriptor.

k - Count of best matches found per each query descriptor or less if a query descriptor has less than k possible matches in total.

compactResult - Parameter used when the mask (or masks) is not empty. If compactResult is false, the matches vector has the same size as queryDescriptors rows. If compactResult is true, the matches vector does not contain matches for fully masked-out query descriptors.

These extended variants of DescriptorMatcher::match methods find several best matches for each query descriptor. The matches are returned in the distance increasing order. See DescriptorMatcher::match for the details about query and train descriptors.

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByVal
                     Mat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByVal
                     UMat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArray(cv::noArray())")
                     UMat mask,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByVal
                     UMat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByVal
                     GpuMat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArray(cv::noArray())")
                     GpuMat mask,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByVal
                     GpuMat trainDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByVal
                        Mat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArray(cv::noArray())")
                        Mat mask,
                        @Cast(value="bool")
                        boolean compactResult)

\brief For each query descriptor, finds the training descriptors not farther than the specified distance.

Parameters:

queryDescriptors - Query set of descriptors.

trainDescriptors - Train set of descriptors. This set is not added to the train descriptors collection stored in the class object.

matches - Found matches.

compactResult - Parameter used when the mask (or masks) is not empty. If compactResult is false, the matches vector has the same size as queryDescriptors rows. If compactResult is true, the matches vector does not contain matches for fully masked-out query descriptors.

maxDistance - Threshold for the distance between matched descriptors. Distance means here metric distance (e.g. Hamming distance), not the distance between coordinates (which is measured in Pixels)!

mask - Mask specifying permissible matches between an input query and train matrices of descriptors.

For each query descriptor, the methods find such training descriptors that the distance between the query descriptor and the training descriptor is equal or smaller than maxDistance. Found matches are returned in the distance increasing order.

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByVal
                        Mat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByVal
                        UMat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArray(cv::noArray())")
                        UMat mask,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByVal
                        UMat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByVal
                        GpuMat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArray(cv::noArray())")
                        GpuMat mask,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByVal
                        GpuMat trainDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  MatVector masks)

\overload

Parameters:

queryDescriptors - Query set of descriptors.

matches - Matches. If a query descriptor is masked out in mask , no match is added for this descriptor. So, matches size may be smaller than the query descriptors count.

masks - Set of masks. Each masks[i] specifies permissible matches between the input query descriptors and stored train descriptors from the i-th image trainDescCollection[i].

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByRef
                  DMatchVector matches)

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  UMatVector masks)

match

public void match(@ByVal
                  Mat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  GpuMatVector masks)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  MatVector masks)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByRef
                  DMatchVector matches)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  UMatVector masks)

match

public void match(@ByVal
                  UMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  GpuMatVector masks)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  MatVector masks)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByRef
                  DMatchVector matches)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  UMatVector masks)

match

public void match(@ByVal
                  GpuMat queryDescriptors,
                  @ByRef
                  DMatchVector matches,
                  @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                  GpuMatVector masks)

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     MatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

\overload

Parameters:

queryDescriptors - Query set of descriptors.

matches - Matches. Each matches[i] is k or less matches for the same query descriptor.

k - Count of best matches found per each query descriptor or less if a query descriptor has less than k possible matches in total.

masks - Set of masks. Each masks[i] specifies permissible matches between the input query descriptors and stored train descriptors from the i-th image trainDescCollection[i].

compactResult - Parameter used when the mask (or masks) is not empty. If compactResult is false, the matches vector has the same size as queryDescriptors rows. If compactResult is true, the matches vector does not contain matches for fully masked-out query descriptors.

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     UMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     Mat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     GpuMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     MatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     UMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     UMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     GpuMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     MatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     UMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

knnMatch

public void knnMatch(@ByVal
                     GpuMat queryDescriptors,
                     @ByRef
                     DMatchVectorVector matches,
                     int k,
                     @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                     GpuMatVector masks,
                     @Cast(value="bool")
                     boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        MatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

\overload

Parameters:

queryDescriptors - Query set of descriptors.

matches - Found matches.

maxDistance - Threshold for the distance between matched descriptors. Distance means here metric distance (e.g. Hamming distance), not the distance between coordinates (which is measured in Pixels)!

masks - Set of masks. Each masks[i] specifies permissible matches between the input query descriptors and stored train descriptors from the i-th image trainDescCollection[i].

compactResult - Parameter used when the mask (or masks) is not empty. If compactResult is false, the matches vector has the same size as queryDescriptors rows. If compactResult is true, the matches vector does not contain matches for fully masked-out query descriptors.

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        UMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        Mat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        GpuMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        MatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        UMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        UMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        GpuMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        MatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        UMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

radiusMatch

public void radiusMatch(@ByVal
                        GpuMat queryDescriptors,
                        @ByRef
                        DMatchVectorVector matches,
                        float maxDistance,
                        @ByVal(nullValue="cv::InputArrayOfArrays(cv::noArray())")
                        GpuMatVector masks,
                        @Cast(value="bool")
                        boolean compactResult)

write

public void write(@opencv_core.Str
                  BytePointer fileName)

write

public void write(@opencv_core.Str
                  String fileName)

read

public void read(@opencv_core.Str
                 BytePointer fileName)

read

public void read(@opencv_core.Str
                 String fileName)

read

public void read(@Const @ByRef
                 FileNode arg0)

Description copied from class: Algorithm

\brief Reads algorithm parameters from a file storage

Overrides:

read in class Algorithm

write

public void write(@ByRef
                  FileStorage arg0)

Description copied from class: Algorithm

\brief Stores algorithm parameters in a file storage

Overrides:

write in class Algorithm

clone

@opencv_core.Ptr
public DescriptorMatcher clone(@Cast(value="bool")
                                                boolean emptyTrainData)

\brief Clones the matcher.

Parameters:

emptyTrainData - If emptyTrainData is false, the method creates a deep copy of the object, that is, copies both parameters and train data. If emptyTrainData is true, the method creates an object copy with the current parameters but with empty train data.

clone

@opencv_core.Ptr
public DescriptorMatcher clone()

Overrides:

clone in class Object

create

@opencv_core.Ptr
public static DescriptorMatcher create(@opencv_core.Str
                                                        BytePointer descriptorMatcherType)

\brief Creates a descriptor matcher of a given type with the default parameters (using default constructor).

Parameters:

descriptorMatcherType - Descriptor matcher type. Now the following matcher types are supported: - BruteForce (it uses L2 ) - BruteForce-L1 - BruteForce-Hamming - BruteForce-Hamming(2) - FlannBased

create

@opencv_core.Ptr
public static DescriptorMatcher create(@opencv_core.Str
                                                        String descriptorMatcherType)

create

@opencv_core.Ptr
public static DescriptorMatcher create(@Cast(value="const cv::DescriptorMatcher::MatcherType")
                                                        int matcherType)

write

public void write(@opencv_core.Ptr
                  FileStorage fs,
                  @opencv_core.Str
                  BytePointer name)

Description copied from class: Algorithm

\brief simplified API for language bindings \overload

Overrides:

write in class Algorithm

write

public void write(@opencv_core.Ptr
                  FileStorage fs,
                  @opencv_core.Str
                  String name)

Overrides:

write in class Algorithm