cv::barcode::BarcodeDetector Class Reference

#include <opencv2/objdetect/barcode.hpp>

Inheritance diagram for cv::barcode::BarcodeDetector:

Public Member Functions
	BarcodeDetector ()
	Initialize the BarcodeDetector. More...
	BarcodeDetector (const std::string &prototxt_path, const std::string &model_path)
	Initialize the BarcodeDetector. More...
	~BarcodeDetector ()
bool	decodeWithType (InputArray img, InputArray points, std::vector< std::string > &decoded_info, std::vector< std::string > &decoded_type) const
	Decodes barcode in image once it's found by the detect() method. More...
bool	detectAndDecodeWithType (InputArray img, std::vector< std::string > &decoded_info, std::vector< std::string > &decoded_type, OutputArray points=noArray()) const
	Both detects and decodes barcode. More...
Public Member Functions inherited from cv::GraphicalCodeDetector
	GraphicalCodeDetector ()
	GraphicalCodeDetector (const GraphicalCodeDetector &)=default
	GraphicalCodeDetector (GraphicalCodeDetector &&)=default
std::string	decode (InputArray img, InputArray points, OutputArray straight_code=noArray()) const
	Decodes graphical code in image once it's found by the detect() method. More...
bool	decodeMulti (InputArray img, InputArray points, std::vector< std::string > &decoded_info, OutputArrayOfArrays straight_code=noArray()) const
	Decodes graphical codes in image once it's found by the detect() method. More...
bool	detect (InputArray img, OutputArray points) const
	Detects graphical code in image and returns the quadrangle containing the code. More...
std::string	detectAndDecode (InputArray img, OutputArray points=noArray(), OutputArray straight_code=noArray()) const
	Both detects and decodes graphical code. More...
bool	detectAndDecodeMulti (InputArray img, std::vector< std::string > &decoded_info, OutputArray points=noArray(), OutputArrayOfArrays straight_code=noArray()) const
	Both detects and decodes graphical codes. More...
bool	detectMulti (InputArray img, OutputArray points) const
	Detects graphical codes in image and returns the vector of the quadrangles containing the codes. More...
GraphicalCodeDetector &	operator= (const GraphicalCodeDetector &)=default
GraphicalCodeDetector &	operator= (GraphicalCodeDetector &&)=default

Additional Inherited Members
Protected Attributes inherited from cv::GraphicalCodeDetector
Ptr< Impl >	p

Constructor & Destructor Documentation

BarcodeDetector() [1/2]

cv::barcode::BarcodeDetector::BarcodeDetector

(

)

Initialize the BarcodeDetector.

BarcodeDetector() [2/2]

cv::barcode::BarcodeDetector::BarcodeDetector	(	const std::string &	prototxt_path,
		const std::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

~BarcodeDetector()

cv::barcode::BarcodeDetector::~BarcodeDetector

(

)

Member Function Documentation

decodeWithType()

bool cv::barcode::BarcodeDetector::decodeWithType	(	InputArray	img,
		InputArray	points,
		std::vector< std::string > &	decoded_info,
		std::vector< std::string > &	decoded_type
	)		const

Python:
	cv.barcode.BarcodeDetector.decodeWithType(	img, points	) ->	retval, decoded_info, 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()

bool cv::barcode::BarcodeDetector::detectAndDecodeWithType	(	InputArray	img,
		std::vector< std::string > &	decoded_info,
		std::vector< std::string > &	decoded_type,
		OutputArray	points = noArray()
	)		const

Python:
	cv.barcode.BarcodeDetector.detectAndDecodeWithType(	img[, points]	) ->	retval, decoded_info, decoded_type, 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

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The documentation for this class was generated from the following file:

• opencv2/objdetect/barcode.hpp