cv::GraphicalCodeDetector Class Reference

#include <graphical_code_detector.hpp>

Inheritance diagram for cv::GraphicalCodeDetector:

Public Member Functions
CV_DEPRECATED_EXTERNAL	GraphicalCodeDetector ()
	GraphicalCodeDetector (const GraphicalCodeDetector &)=default
	GraphicalCodeDetector (GraphicalCodeDetector &&)=default
GraphicalCodeDetector &	operator= (const GraphicalCodeDetector &)=default
GraphicalCodeDetector &	operator= (GraphicalCodeDetector &&)=default
CV_WRAP bool	detect (InputArray img, OutputArray points) const
	Detects graphical code in image and returns the quadrangle containing the code. More...
CV_WRAP 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...
CV_WRAP std::string	detectAndDecode (InputArray img, OutputArray points=noArray(), OutputArray straight_code=noArray()) const
	Both detects and decodes graphical code. More...
CV_WRAP bool	detectMulti (InputArray img, OutputArray points) const
	Detects graphical codes in image and returns the vector of the quadrangles containing the codes. More...
CV_WRAP bool	decodeMulti (InputArray img, InputArray points, CV_OUT 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...
CV_WRAP bool	detectAndDecodeMulti (InputArray img, CV_OUT std::vector< std::string > &decoded_info, OutputArray points=noArray(), OutputArrayOfArrays straight_code=noArray()) const
	Both detects and decodes graphical codes. More...

Protected Attributes
Ptr< Impl >	p

Constructor & Destructor Documentation

GraphicalCodeDetector() [1/3]

CV_DEPRECATED_EXTERNAL cv::GraphicalCodeDetector::GraphicalCodeDetector

(

)

GraphicalCodeDetector() [2/3]

cv::GraphicalCodeDetector::GraphicalCodeDetector ( const GraphicalCodeDetector &  )

default

GraphicalCodeDetector() [3/3]

cv::GraphicalCodeDetector::GraphicalCodeDetector ( GraphicalCodeDetector &&  )

default

Member Function Documentation

decode()

CV_WRAP std::string cv::GraphicalCodeDetector::decode	(	InputArray	img,
		InputArray	points,
		OutputArray	straight_code = noArray()
	)		const

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

Returns UTF8-encoded output string or empty string if the code cannot be decoded.

Parameters

img	grayscale or color (BGR) image containing graphical code.
points	Quadrangle vertices found by detect() method (or some other algorithm).
straight_code	The optional output image containing binarized code, will be empty if not found.

decodeMulti()

CV_WRAP bool cv::GraphicalCodeDetector::decodeMulti	(	InputArray	img,
		InputArray	points,
		CV_OUT std::vector< std::string > &	decoded_info,
		OutputArrayOfArrays	straight_code = noArray()
	)		const

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

Parameters

img	grayscale or color (BGR) image containing graphical codes.
decoded_info	UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.
points	vector of Quadrangle vertices found by detect() method (or some other algorithm).
straight_code	The optional output vector of images containing binarized codes

detect()

CV_WRAP bool cv::GraphicalCodeDetector::detect	(	InputArray	img,
		OutputArray	points
	)		const

Detects graphical code in image and returns the quadrangle containing the code.

Parameters

img	grayscale or color (BGR) image containing (or not) graphical code.
points	Output vector of vertices of the minimum-area quadrangle containing the code.

detectAndDecode()

CV_WRAP std::string cv::GraphicalCodeDetector::detectAndDecode	(	InputArray	img,
		OutputArray	points = noArray(),
		OutputArray	straight_code = noArray()
	)		const

Both detects and decodes graphical code.

Parameters

img	grayscale or color (BGR) image containing graphical code.
points	optional output array of vertices of the found graphical code quadrangle, will be empty if not found.
straight_code	The optional output image containing binarized code

detectAndDecodeMulti()

CV_WRAP bool cv::GraphicalCodeDetector::detectAndDecodeMulti	(	InputArray	img,
		CV_OUT std::vector< std::string > &	decoded_info,
		OutputArray	points = noArray(),
		OutputArrayOfArrays	straight_code = noArray()
	)		const

Both detects and decodes graphical codes.

Parameters

img	grayscale or color (BGR) image containing graphical codes.
decoded_info	UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.
points	optional output vector of vertices of the found graphical code quadrangles. Will be empty if not found.
straight_code	The optional vector of images containing binarized codes

• If there are QR codes encoded with a Structured Append mode on the image and all of them detected and decoded correctly, method writes a full message to position corresponds to 0-th code in a sequence. The rest of QR codes from the same sequence have empty string.

detectMulti()

CV_WRAP bool cv::GraphicalCodeDetector::detectMulti	(	InputArray	img,
		OutputArray	points
	)		const

Detects graphical codes in image and returns the vector of the quadrangles containing the codes.

Parameters

img	grayscale or color (BGR) image containing (or not) graphical codes.
points	Output vector of vector of vertices of the minimum-area quadrangle containing the codes.

operator=() [1/2]

GraphicalCodeDetector& cv::GraphicalCodeDetector::operator= ( const GraphicalCodeDetector &  )

default

operator=() [2/2]

GraphicalCodeDetector& cv::GraphicalCodeDetector::operator= ( GraphicalCodeDetector &&  )

default

Member Data Documentation

p

Ptr<Impl> cv::GraphicalCodeDetector::p

protected

---

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

• build/release/_deps/opencv-src/include/opencv4/opencv2/objdetect/graphical_code_detector.hpp