org.bytedeco.opencv.opencv_img_hash

Class ImgHashBase

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.opencv.opencv_core.Algorithm

org.bytedeco.opencv.opencv_img_hash.ImgHashBase

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

AverageHash, BlockMeanHash, ColorMomentHash, MarrHildrethHash, PHash, RadialVarianceHash

@Namespace(value="cv::img_hash")
 @NoOffset
 @Properties(inherit=opencv_img_hash.class)
public class ImgHashBase
extends Algorithm

\addtogroup img_hash \{

/** \brief The base class for image hash algorithms

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ImgHashBase.ImgHashImpl

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

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

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
double	compare(GpuMat hashOne, GpuMat hashTwo)
double	compare(Mat hashOne, Mat hashTwo) \brief Compare the hash value between inOne and inTwo
double	compare(UMat hashOne, UMat hashTwo)
void	compute(GpuMat inputArr, GpuMat outputArr)
void	compute(Mat inputArr, Mat outputArr) \brief Computes hash of the input image
void	compute(UMat inputArr, UMat outputArr)

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

clear, empty, getDefaultName, position, read, save, save, write, write, write

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

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

Constructor Detail

ImgHashBase

public ImgHashBase(Pointer p)

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

Method Detail

compute

public void compute(@ByVal
                    Mat inputArr,
                    @ByVal
                    Mat outputArr)

\brief Computes hash of the input image

Parameters:

inputArr - input image want to compute hash value

outputArr - hash of the image

compute

public void compute(@ByVal
                    UMat inputArr,
                    @ByVal
                    UMat outputArr)

compute

public void compute(@ByVal
                    GpuMat inputArr,
                    @ByVal
                    GpuMat outputArr)

compare

public double compare(@ByVal
                      Mat hashOne,
                      @ByVal
                      Mat hashTwo)

\brief Compare the hash value between inOne and inTwo

Parameters:

hashOne - Hash value one

hashTwo - Hash value two

Returns:

value indicate similarity between inOne and inTwo, the meaning of the value vary from algorithms to algorithms

compare

public double compare(@ByVal
                      UMat hashOne,
                      @ByVal
                      UMat hashTwo)

compare

public double compare(@ByVal
                      GpuMat hashOne,
                      @ByVal
                      GpuMat hashTwo)