Constructor Detail

• BarcodeDetector

  protected BarcodeDetector​(long addr)

• BarcodeDetector

  public BarcodeDetector()

  Initialize the BarcodeDetector.

• BarcodeDetector

  public BarcodeDetector​(java.lang.String prototxt_path,
                         java.lang.String model_path)

  Initialize the BarcodeDetector. Parameters allow to load _optional_ Super Resolution DNN model for better quality.

  Parameters:

  prototxt_path - prototxt file path for the super resolution model

  model_path - model file path for the super resolution model

Method Detail

• __fromPtr__

  public static BarcodeDetector __fromPtr__​(long addr)

• decodeWithType

  public boolean decodeWithType​(Mat img,
                                Mat points,
                                java.util.List<java.lang.String> decoded_info,
                                java.util.List<java.lang.String> decoded_type)

  Decodes barcode in image once it's found by the detect() method.

  Parameters:

  img - grayscale or color (BGR) image containing bar code.

  points - vector of rotated rectangle vertices found by detect() method (or some other algorithm). For N detected barcodes, the dimensions of this array should be [N][4]. Order of four points in vector<Point2f> is bottomLeft, topLeft, topRight, bottomRight.

  decoded_info - UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.

  decoded_type - vector strings, specifies the type of these barcodes

  Returns:

  true if at least one valid barcode have been found

• detectAndDecodeWithType

  public boolean detectAndDecodeWithType​(Mat img,
                                         java.util.List<java.lang.String> decoded_info,
                                         java.util.List<java.lang.String> decoded_type,
                                         Mat points)

  Both detects and decodes barcode

  Parameters:

  img - grayscale or color (BGR) image containing barcode.

  decoded_info - UTF8-encoded output vector of string(s) or empty vector of string if the codes cannot be decoded.

  decoded_type - vector of strings, specifies the type of these barcodes

  points - optional output vector of vertices of the found barcode rectangle. Will be empty if not found.

  Returns:

  true if at least one valid barcode have been found

• detectAndDecodeWithType

  public boolean detectAndDecodeWithType​(Mat img,
                                         java.util.List<java.lang.String> decoded_info,
                                         java.util.List<java.lang.String> decoded_type)

  Both detects and decodes barcode

  Parameters:

  img - grayscale or color (BGR) image containing barcode.

  decoded_info - UTF8-encoded output vector of string(s) or empty vector of string if the codes cannot be decoded.

  decoded_type - vector of strings, specifies the type of these barcodes

  Returns:

  true if at least one valid barcode have been found

• finalize

  protected void finalize()
                   throws java.lang.Throwable

  Overrides:

  finalize in class GraphicalCodeDetector

  Throws:

  java.lang.Throwable