org.opencv.objdetect.Objdetect

public class Objdetect
extends Object

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`CASCADE_DO_CANNY_PRUNING`
`static int`	`CASCADE_DO_ROUGH_SEARCH`
`static int`	`CASCADE_FIND_BIGGEST_OBJECT`
`static int`	`CASCADE_SCALE_IMAGE`
`static int`	`CORNER_REFINE_APRILTAG`
`static int`	`CORNER_REFINE_CONTOUR`
`static int`	`CORNER_REFINE_NONE`
`static int`	`CORNER_REFINE_SUBPIX`
`static int`	`DetectionBasedTracker_DETECTED`
`static int`	`DetectionBasedTracker_DETECTED_NOT_SHOWN_YET`
`static int`	`DetectionBasedTracker_DETECTED_TEMPORARY_LOST`
`static int`	`DetectionBasedTracker_WRONG_OBJECT`
`static int`	`DICT_4X4_100`
`static int`	`DICT_4X4_1000`
`static int`	`DICT_4X4_250`
`static int`	`DICT_4X4_50`
`static int`	`DICT_5X5_100`
`static int`	`DICT_5X5_1000`
`static int`	`DICT_5X5_250`
`static int`	`DICT_5X5_50`
`static int`	`DICT_6X6_100`
`static int`	`DICT_6X6_1000`
`static int`	`DICT_6X6_250`
`static int`	`DICT_6X6_50`
`static int`	`DICT_7X7_100`
`static int`	`DICT_7X7_1000`
`static int`	`DICT_7X7_250`
`static int`	`DICT_7X7_50`
`static int`	`DICT_APRILTAG_16h5`
`static int`	`DICT_APRILTAG_25h9`
`static int`	`DICT_APRILTAG_36h10`
`static int`	`DICT_APRILTAG_36h11`
`static int`	`DICT_ARUCO_MIP_36h12`
`static int`	`DICT_ARUCO_ORIGINAL`

Constructor Summary

Constructors

Constructor Description

Objdetect()

Method Summary

Modifier and Type	Method	Description
`static void`	`drawDetectedCornersCharuco(Mat image, Mat charucoCorners)`	Draws a set of Charuco corners
`static void`	`drawDetectedCornersCharuco(Mat image, Mat charucoCorners, Mat charucoIds)`	Draws a set of Charuco corners
`static void`	`drawDetectedCornersCharuco(Mat image, Mat charucoCorners, Mat charucoIds, Scalar cornerColor)`	Draws a set of Charuco corners
`static void`	`drawDetectedDiamonds(Mat image, List<Mat> diamondCorners)`	Draw a set of detected ChArUco Diamond markers
`static void`	`drawDetectedDiamonds(Mat image, List<Mat> diamondCorners, Mat diamondIds)`	Draw a set of detected ChArUco Diamond markers
`static void`	`drawDetectedDiamonds(Mat image, List<Mat> diamondCorners, Mat diamondIds, Scalar borderColor)`	Draw a set of detected ChArUco Diamond markers
`static void`	`drawDetectedMarkers(Mat image, List<Mat> corners)`	Draw detected markers in image
`static void`	`drawDetectedMarkers(Mat image, List<Mat> corners, Mat ids)`	Draw detected markers in image
`static void`	`drawDetectedMarkers(Mat image, List<Mat> corners, Mat ids, Scalar borderColor)`	Draw detected markers in image
`static Dictionary`	`extendDictionary(int nMarkers, int markerSize)`	Extend base dictionary by new nMarkers
`static Dictionary`	`extendDictionary(int nMarkers, int markerSize, Dictionary baseDictionary)`	Extend base dictionary by new nMarkers
`static Dictionary`	`extendDictionary(int nMarkers, int markerSize, Dictionary baseDictionary, int randomSeed)`	Extend base dictionary by new nMarkers
`static void`	`generateImageMarker(Dictionary dictionary, int id, int sidePixels, Mat img)`	Generate a canonical marker image
`static void`	`generateImageMarker(Dictionary dictionary, int id, int sidePixels, Mat img, int borderBits)`	Generate a canonical marker image
`static Dictionary`	`getPredefinedDictionary(int dict)`	Returns one of the predefined dictionaries referenced by DICT_*.
`static void`	`groupRectangles(MatOfRect rectList, MatOfInt weights, int groupThreshold)`
`static void`	`groupRectangles(MatOfRect rectList, MatOfInt weights, int groupThreshold, double eps)`

Methods inherited from class java.lang.Object

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

Field Details
- CASCADE_DO_CANNY_PRUNING
  
  public static final int CASCADE_DO_CANNY_PRUNING
  
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  Constant Field Values
- CASCADE_SCALE_IMAGE
  
  public static final int CASCADE_SCALE_IMAGE
  
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- CASCADE_FIND_BIGGEST_OBJECT
  
  public static final int CASCADE_FIND_BIGGEST_OBJECT
  
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- CASCADE_DO_ROUGH_SEARCH
  
  public static final int CASCADE_DO_ROUGH_SEARCH
  
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- DetectionBasedTracker_DETECTED_NOT_SHOWN_YET
  
  public static final int DetectionBasedTracker_DETECTED_NOT_SHOWN_YET
  
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- DetectionBasedTracker_DETECTED
  
  public static final int DetectionBasedTracker_DETECTED
  
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- DetectionBasedTracker_DETECTED_TEMPORARY_LOST
  
  public static final int DetectionBasedTracker_DETECTED_TEMPORARY_LOST
  
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- DetectionBasedTracker_WRONG_OBJECT
  
  public static final int DetectionBasedTracker_WRONG_OBJECT
  
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- CORNER_REFINE_NONE
  
  public static final int CORNER_REFINE_NONE
  
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- CORNER_REFINE_SUBPIX
  
  public static final int CORNER_REFINE_SUBPIX
  
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- CORNER_REFINE_CONTOUR
  
  public static final int CORNER_REFINE_CONTOUR
  
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- CORNER_REFINE_APRILTAG
  
  public static final int CORNER_REFINE_APRILTAG
  
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  Constant Field Values
- DICT_4X4_50
  
  public static final int DICT_4X4_50
  
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- DICT_4X4_100
  
  public static final int DICT_4X4_100
  
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- DICT_4X4_250
  
  public static final int DICT_4X4_250
  
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- DICT_4X4_1000
  
  public static final int DICT_4X4_1000
  
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- DICT_5X5_50
  
  public static final int DICT_5X5_50
  
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- DICT_5X5_100
  
  public static final int DICT_5X5_100
  
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- DICT_5X5_250
  
  public static final int DICT_5X5_250
  
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- DICT_5X5_1000
  
  public static final int DICT_5X5_1000
  
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- DICT_6X6_50
  
  public static final int DICT_6X6_50
  
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- DICT_6X6_100
  
  public static final int DICT_6X6_100
  
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- DICT_6X6_250
  
  public static final int DICT_6X6_250
  
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- DICT_6X6_1000
  
  public static final int DICT_6X6_1000
  
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- DICT_7X7_50
  
  public static final int DICT_7X7_50
  
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- DICT_7X7_100
  
  public static final int DICT_7X7_100
  
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- DICT_7X7_250
  
  public static final int DICT_7X7_250
  
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- DICT_7X7_1000
  
  public static final int DICT_7X7_1000
  
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- DICT_ARUCO_ORIGINAL
  
  public static final int DICT_ARUCO_ORIGINAL
  
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- DICT_APRILTAG_16h5
  
  public static final int DICT_APRILTAG_16h5
  
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- DICT_APRILTAG_25h9
  
  public static final int DICT_APRILTAG_25h9
  
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- DICT_APRILTAG_36h10
  
  public static final int DICT_APRILTAG_36h10
  
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- DICT_APRILTAG_36h11
  
  public static final int DICT_APRILTAG_36h11
  
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- DICT_ARUCO_MIP_36h12
  
  public static final int DICT_ARUCO_MIP_36h12
  
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Constructor Details
- Objdetect
  
  public Objdetect()
Method Details
- groupRectangles
  
  public static void groupRectangles(MatOfRect rectList, MatOfInt weights, int groupThreshold, double eps)
- groupRectangles
  
  public static void groupRectangles(MatOfRect rectList, MatOfInt weights, int groupThreshold)
- drawDetectedMarkers
  
  public static void drawDetectedMarkers(Mat image, List<Mat> corners, Mat ids, Scalar borderColor)
  
  Draw detected markers in image
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  corners - positions of marker corners on input image. (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise.
  
  ids - vector of identifiers for markers in markersCorners . Optional, if not provided, ids are not painted.
  
  borderColor - color of marker borders. Rest of colors (text color and first corner color) are calculated based on this one to improve visualization. Given an array of detected marker corners and its corresponding ids, this functions draws the markers in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- drawDetectedMarkers
  
  public static void drawDetectedMarkers(Mat image, List<Mat> corners, Mat ids)
  
  Draw detected markers in image
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  corners - positions of marker corners on input image. (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise.
  
  ids - vector of identifiers for markers in markersCorners . Optional, if not provided, ids are not painted. are calculated based on this one to improve visualization. Given an array of detected marker corners and its corresponding ids, this functions draws the markers in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- drawDetectedMarkers
  
  public static void drawDetectedMarkers(Mat image, List<Mat> corners)
  
  Draw detected markers in image
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  corners - positions of marker corners on input image. (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise. Optional, if not provided, ids are not painted. are calculated based on this one to improve visualization. Given an array of detected marker corners and its corresponding ids, this functions draws the markers in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- generateImageMarker
  
  public static void generateImageMarker(Dictionary dictionary, int id, int sidePixels, Mat img, int borderBits)
  
  Generate a canonical marker image
  
  Parameters:
  
  dictionary - dictionary of markers indicating the type of markers
  
  id - identifier of the marker that will be returned. It has to be a valid id in the specified dictionary.
  
  sidePixels - size of the image in pixels
  
  img - output image with the marker
  
  borderBits - width of the marker border. This function returns a marker image in its canonical form (i.e. ready to be printed)
- generateImageMarker
  
  public static void generateImageMarker(Dictionary dictionary, int id, int sidePixels, Mat img)
  
  Generate a canonical marker image
  
  Parameters:
  
  dictionary - dictionary of markers indicating the type of markers
  
  id - identifier of the marker that will be returned. It has to be a valid id in the specified dictionary.
  
  sidePixels - size of the image in pixels
  
  img - output image with the marker This function returns a marker image in its canonical form (i.e. ready to be printed)
- drawDetectedCornersCharuco
  
  public static void drawDetectedCornersCharuco(Mat image, Mat charucoCorners, Mat charucoIds, Scalar cornerColor)
  
  Draws a set of Charuco corners
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  charucoCorners - vector of detected charuco corners
  
  charucoIds - list of identifiers for each corner in charucoCorners
  
  cornerColor - color of the square surrounding each corner This function draws a set of detected Charuco corners. If identifiers vector is provided, it also draws the id of each corner.
- drawDetectedCornersCharuco
  
  public static void drawDetectedCornersCharuco(Mat image, Mat charucoCorners, Mat charucoIds)
  
  Draws a set of Charuco corners
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  charucoCorners - vector of detected charuco corners
  
  charucoIds - list of identifiers for each corner in charucoCorners This function draws a set of detected Charuco corners. If identifiers vector is provided, it also draws the id of each corner.
- drawDetectedCornersCharuco
  
  public static void drawDetectedCornersCharuco(Mat image, Mat charucoCorners)
  
  Draws a set of Charuco corners
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  charucoCorners - vector of detected charuco corners This function draws a set of detected Charuco corners. If identifiers vector is provided, it also draws the id of each corner.
- drawDetectedDiamonds
  
  public static void drawDetectedDiamonds(Mat image, List<Mat> diamondCorners, Mat diamondIds, Scalar borderColor)
  
  Draw a set of detected ChArUco Diamond markers
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  diamondCorners - positions of diamond corners in the same format returned by detectCharucoDiamond(). (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise.
  
  diamondIds - vector of identifiers for diamonds in diamondCorners, in the same format returned by detectCharucoDiamond() (e.g. std::vector<Vec4i>). Optional, if not provided, ids are not painted.
  
  borderColor - color of marker borders. Rest of colors (text color and first corner color) are calculated based on this one. Given an array of detected diamonds, this functions draws them in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- drawDetectedDiamonds
  
  public static void drawDetectedDiamonds(Mat image, List<Mat> diamondCorners, Mat diamondIds)
  
  Draw a set of detected ChArUco Diamond markers
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  diamondCorners - positions of diamond corners in the same format returned by detectCharucoDiamond(). (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise.
  
  diamondIds - vector of identifiers for diamonds in diamondCorners, in the same format returned by detectCharucoDiamond() (e.g. std::vector<Vec4i>). Optional, if not provided, ids are not painted. are calculated based on this one. Given an array of detected diamonds, this functions draws them in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- drawDetectedDiamonds
  
  public static void drawDetectedDiamonds(Mat image, List<Mat> diamondCorners)
  
  Draw a set of detected ChArUco Diamond markers
  
  Parameters:
  
  image - input/output image. It must have 1 or 3 channels. The number of channels is not altered.
  
  diamondCorners - positions of diamond corners in the same format returned by detectCharucoDiamond(). (e.g std::vector<std::vector<cv::Point2f> > ). For N detected markers, the dimensions of this array should be Nx4. The order of the corners should be clockwise. returned by detectCharucoDiamond() (e.g. std::vector<Vec4i>). Optional, if not provided, ids are not painted. are calculated based on this one. Given an array of detected diamonds, this functions draws them in the image. The marker borders are painted and the markers identifiers if provided. Useful for debugging purposes.
- getPredefinedDictionary
  
  public static Dictionary getPredefinedDictionary(int dict)
  
  Returns one of the predefined dictionaries referenced by DICT_*.
  
  Parameters:
  
  dict - automatically generated
  
  Returns:
  
  automatically generated
- extendDictionary
  
  public static Dictionary extendDictionary(int nMarkers, int markerSize, Dictionary baseDictionary, int randomSeed)
  
  Extend base dictionary by new nMarkers
  
  Parameters:
  
  nMarkers - number of markers in the dictionary
  
  markerSize - number of bits per dimension of each markers
  
  baseDictionary - Include the markers in this dictionary at the beginning (optional)
  
  randomSeed - a user supplied seed for theRNG() This function creates a new dictionary composed by nMarkers markers and each markers composed by markerSize x markerSize bits. If baseDictionary is provided, its markers are directly included and the rest are generated based on them. If the size of baseDictionary is higher than nMarkers, only the first nMarkers in baseDictionary are taken and no new marker is added.
  
  Returns:
  
  automatically generated
- extendDictionary
  
  public static Dictionary extendDictionary(int nMarkers, int markerSize, Dictionary baseDictionary)
  
  Extend base dictionary by new nMarkers
  
  Parameters:
  
  nMarkers - number of markers in the dictionary
  
  markerSize - number of bits per dimension of each markers
  
  baseDictionary - Include the markers in this dictionary at the beginning (optional) This function creates a new dictionary composed by nMarkers markers and each markers composed by markerSize x markerSize bits. If baseDictionary is provided, its markers are directly included and the rest are generated based on them. If the size of baseDictionary is higher than nMarkers, only the first nMarkers in baseDictionary are taken and no new marker is added.
  
  Returns:
  
  automatically generated
- extendDictionary
  
  public static Dictionary extendDictionary(int nMarkers, int markerSize)
  
  Extend base dictionary by new nMarkers
  
  Parameters:
  
  nMarkers - number of markers in the dictionary
  
  markerSize - number of bits per dimension of each markers This function creates a new dictionary composed by nMarkers markers and each markers composed by markerSize x markerSize bits. If baseDictionary is provided, its markers are directly included and the rest are generated based on them. If the size of baseDictionary is higher than nMarkers, only the first nMarkers in baseDictionary are taken and no new marker is added.
  
  Returns:
  
  automatically generated

Class Objdetect

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Details

Constructor Details

Method Details