Package | Description |
---|---|
org.opencv.aruco | |
org.opencv.objdetect |
Class and Description |
---|
Board
Board of ArUco markers
A board is a set of markers in the 3D space with a common coordinate system.
|
CharucoBoard
ChArUco board is a planar chessboard where the markers are placed inside the white squares of a chessboard.
|
DetectorParameters
struct DetectorParameters is used by ArucoDetector
|
Dictionary
Dictionary is a set of unique ArUco markers of the same size
bytesList storing as 2-dimensions Mat with 4-th channels (CV_8UC4 type was used) and contains the marker codewords where:
- bytesList.rows is the dictionary size
- each marker is encoded using nbytes = ceil(markerSize*markerSize/8.) bytes
- each row contains all 4 rotations of the marker, so its length is 4*nbytes
- the byte order in the bytesList[i] row:
//bytes without rotation/bytes with rotation 1/bytes with rotation 2/bytes with rotation 3//
So bytesList.ptr(i)[k*nbytes + j] is the j-th byte of i-th marker, in its k-th rotation. |
Class and Description |
---|
ArucoDetector
The main functionality of ArucoDetector class is detection of markers in an image with detectMarkers() method.
|
BarcodeDetector |
BaseCascadeClassifier |
Board
Board of ArUco markers
A board is a set of markers in the 3D space with a common coordinate system.
|
CascadeClassifier
Cascade classifier class for object detection.
|
CharucoBoard
ChArUco board is a planar chessboard where the markers are placed inside the white squares of a chessboard.
|
CharucoDetector |
CharucoParameters |
DetectorParameters
struct DetectorParameters is used by ArucoDetector
|
Dictionary
Dictionary is a set of unique ArUco markers of the same size
bytesList storing as 2-dimensions Mat with 4-th channels (CV_8UC4 type was used) and contains the marker codewords where:
- bytesList.rows is the dictionary size
- each marker is encoded using nbytes = ceil(markerSize*markerSize/8.) bytes
- each row contains all 4 rotations of the marker, so its length is 4*nbytes
- the byte order in the bytesList[i] row:
//bytes without rotation/bytes with rotation 1/bytes with rotation 2/bytes with rotation 3//
So bytesList.ptr(i)[k*nbytes + j] is the j-th byte of i-th marker, in its k-th rotation. |
FaceDetectorYN
DNN-based face detector
model download link: https://github.com/opencv/opencv_zoo/tree/master/models/face_detection_yunet
|
FaceRecognizerSF
DNN-based face recognizer
model download link: https://github.com/opencv/opencv_zoo/tree/master/models/face_recognition_sface
|
GraphicalCodeDetector |
GridBoard
Planar board with grid arrangement of markers
More common type of board.
|
HOGDescriptor
Implementation of HOG (Histogram of Oriented Gradients) descriptor and object detector.
|
QRCodeDetector |
QRCodeDetectorAruco |
QRCodeDetectorAruco_Params |
QRCodeEncoder
Groups the object candidate rectangles.
|
QRCodeEncoder_Params
QR code encoder parameters.
|
RefineParameters
struct RefineParameters is used by ArucoDetector
|
Copyright © 2024. All rights reserved.