org.opencv.objdetect

Class Dictionary

java.lang.Object

org.opencv.objdetect.Dictionary

public class Dictionary
extends java.lang.Object

Dictionary/Set of markers, it contains the inner codification BytesList contains the marker codewords where: - bytesList.rows is the dictionary size - each marker is encoded using nbytes = ceil(markerSize*markerSize/8.) - each row contains all 4 rotations of the marker, so its length is 4*nbytes bytesList.ptr(i)[k*nbytes + j] is then the j-th byte of i-th marker, in its k-th rotation.

Constructor Summary

Constructors

Constructor and Description
Dictionary()
Dictionary(Mat bytesList, int _markerSize)
Dictionary(Mat bytesList, int _markerSize, int maxcorr)

Method Summary

Modifier and Type	Method and Description
static Dictionary	__fromPtr__(long addr)
void	generateImageMarker(int id, int sidePixels, Mat _img) Generate a canonical marker image
void	generateImageMarker(int id, int sidePixels, Mat _img, int borderBits) Generate a canonical marker image
Mat	get_bytesList()
int	get_markerSize()
int	get_maxCorrectionBits()
static Mat	getBitsFromByteList(Mat byteList, int markerSize) Transform list of bytes to matrix of bits
static Mat	getByteListFromBits(Mat bits) Transform matrix of bits to list of bytes in the 4 rotations
int	getDistanceToId(Mat bits, int id) Returns the distance of the input bits to the specific id.
int	getDistanceToId(Mat bits, int id, boolean allRotations) Returns the distance of the input bits to the specific id.
long	getNativeObjAddr()
boolean	identify(Mat onlyBits, int[] idx, int[] rotation, double maxCorrectionRate) Given a matrix of bits.
void	set_bytesList(Mat bytesList)
void	set_markerSize(int markerSize)
void	set_maxCorrectionBits(int maxCorrectionBits)

Methods inherited from class java.lang.Object

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

Constructor Detail

Dictionary

public Dictionary()

Dictionary

public Dictionary(Mat bytesList,
                  int _markerSize)

Dictionary

public Dictionary(Mat bytesList,
                  int _markerSize,
                  int maxcorr)

Method Detail

__fromPtr__

public static Dictionary __fromPtr__(long addr)

generateImageMarker

public void generateImageMarker(int id,
                                int sidePixels,
                                Mat _img)

Generate a canonical marker image

Parameters:

id - automatically generated

sidePixels - automatically generated

_img - automatically generated

generateImageMarker

public void generateImageMarker(int id,
                                int sidePixels,
                                Mat _img,
                                int borderBits)

Generate a canonical marker image

Parameters:

id - automatically generated

sidePixels - automatically generated

_img - automatically generated

borderBits - automatically generated

get_bytesList

public Mat get_bytesList()

get_markerSize

public int get_markerSize()

get_maxCorrectionBits

public int get_maxCorrectionBits()

getBitsFromByteList

public static Mat getBitsFromByteList(Mat byteList,
                                      int markerSize)

Transform list of bytes to matrix of bits

Parameters:

byteList - automatically generated

markerSize - automatically generated

Returns:

automatically generated

getByteListFromBits

public static Mat getByteListFromBits(Mat bits)

Transform matrix of bits to list of bytes in the 4 rotations

Parameters:

bits - automatically generated

Returns:

automatically generated

getDistanceToId

public int getDistanceToId(Mat bits,
                           int id)

Returns the distance of the input bits to the specific id. If allRotations is true, the four posible bits rotation are considered

Parameters:

bits - automatically generated

id - automatically generated

Returns:

automatically generated

getDistanceToId

public int getDistanceToId(Mat bits,
                           int id,
                           boolean allRotations)

Returns the distance of the input bits to the specific id. If allRotations is true, the four posible bits rotation are considered

Parameters:

bits - automatically generated

id - automatically generated

allRotations - automatically generated

Returns:

automatically generated

getNativeObjAddr

public long getNativeObjAddr()

identify

public boolean identify(Mat onlyBits,
                        int[] idx,
                        int[] rotation,
                        double maxCorrectionRate)

Given a matrix of bits. Returns whether if marker is identified or not. It returns by reference the correct id (if any) and the correct rotation

Parameters:

onlyBits - automatically generated

idx - automatically generated

rotation - automatically generated

maxCorrectionRate - automatically generated

Returns:

automatically generated

set_bytesList

public void set_bytesList(Mat bytesList)

set_markerSize

public void set_markerSize(int markerSize)

set_maxCorrectionBits

public void set_maxCorrectionBits(int maxCorrectionBits)