#include <opencv2/objdetect.hpp>
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| QRCodeDetector () |
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cv::String | decodeCurved (InputArray img, InputArray points, OutputArray straight_qrcode=noArray()) |
| Decodes QR code on a curved surface in image once it's found by the detect() method.
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std::string | detectAndDecodeCurved (InputArray img, OutputArray points=noArray(), OutputArray straight_qrcode=noArray()) |
| Both detects and decodes QR code on a curved surface.
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QRCodeDetector & | setEpsX (double epsX) |
| sets the epsilon used during the horizontal scan of QR code stop marker detection.
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QRCodeDetector & | setEpsY (double epsY) |
| sets the epsilon used during the vertical scan of QR code stop marker detection.
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QRCodeDetector & | setUseAlignmentMarkers (bool useAlignmentMarkers) |
| use markers to improve the position of the corners of the QR code
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| GraphicalCodeDetector () |
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| GraphicalCodeDetector (const GraphicalCodeDetector &)=default |
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| GraphicalCodeDetector (GraphicalCodeDetector &&)=default |
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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.
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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.
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bool | detect (InputArray img, OutputArray points) const |
| Detects graphical code in image and returns the quadrangle containing the code.
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std::string | detectAndDecode (InputArray img, OutputArray points=noArray(), OutputArray straight_code=noArray()) const |
| Both detects and decodes graphical code.
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bool | detectAndDecodeMulti (InputArray img, std::vector< std::string > &decoded_info, OutputArray points=noArray(), OutputArrayOfArrays straight_code=noArray()) const |
| Both detects and decodes graphical codes.
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bool | detectMulti (InputArray img, OutputArray points) const |
| Detects graphical codes in image and returns the vector of the quadrangles containing the codes.
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GraphicalCodeDetector & | operator= (const GraphicalCodeDetector &)=default |
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GraphicalCodeDetector & | operator= (GraphicalCodeDetector &&)=default |
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◆ QRCodeDetector()
cv::QRCodeDetector::QRCodeDetector |
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Python: |
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| cv.QRCodeDetector( | | ) -> | <QRCodeDetector object> |
◆ decodeCurved()
Python: |
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| cv.QRCodeDetector.decodeCurved( | img, points[, straight_qrcode] | ) -> | retval, straight_qrcode |
Decodes QR code on a curved surface 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
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img | grayscale or color (BGR) image containing QR code. |
points | Quadrangle vertices found by detect() method (or some other algorithm). |
straight_qrcode | The optional output image containing rectified and binarized QR code |
◆ detectAndDecodeCurved()
Python: |
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| cv.QRCodeDetector.detectAndDecodeCurved( | img[, points[, straight_qrcode]] | ) -> | retval, points, straight_qrcode |
Both detects and decodes QR code on a curved surface.
- Parameters
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img | grayscale or color (BGR) image containing QR code. |
points | optional output array of vertices of the found QR code quadrangle. Will be empty if not found. |
straight_qrcode | The optional output image containing rectified and binarized QR code |
◆ setEpsX()
Python: |
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| cv.QRCodeDetector.setEpsX( | epsX | ) -> | retval |
sets the epsilon used during the horizontal scan of QR code stop marker detection.
- Parameters
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epsX | Epsilon neighborhood, which allows you to determine the horizontal pattern of the scheme 1:1:3:1:1 according to QR code standard. |
◆ setEpsY()
Python: |
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| cv.QRCodeDetector.setEpsY( | epsY | ) -> | retval |
sets the epsilon used during the vertical scan of QR code stop marker detection.
- Parameters
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epsY | Epsilon neighborhood, which allows you to determine the vertical pattern of the scheme 1:1:3:1:1 according to QR code standard. |
◆ setUseAlignmentMarkers()
QRCodeDetector & cv::QRCodeDetector::setUseAlignmentMarkers |
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bool |
useAlignmentMarkers | ) |
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Python: |
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| cv.QRCodeDetector.setUseAlignmentMarkers( | useAlignmentMarkers | ) -> | retval |
use markers to improve the position of the corners of the QR code
alignmentMarkers using by default
The documentation for this class was generated from the following file: