public class QRCodeDetector extends Object
Modifier and Type | Field and Description |
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protected long |
nativeObj |
Modifier | Constructor and Description |
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|
QRCodeDetector() |
protected |
QRCodeDetector(long addr) |
Modifier and Type | Method and Description |
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static QRCodeDetector |
__fromPtr__(long addr) |
String |
decode(Mat img,
Mat points)
Decodes QR code in image once it's found by the detect() method.
|
String |
decode(Mat img,
Mat points,
Mat straight_qrcode)
Decodes QR code in image once it's found by the detect() method.
|
boolean |
decodeMulti(Mat img,
Mat points,
List<String> decoded_info)
Decodes QR codes in image once it's found by the detect() method.
|
boolean |
decodeMulti(Mat img,
Mat points,
List<String> decoded_info,
List<Mat> straight_qrcode)
Decodes QR codes in image once it's found by the detect() method.
|
boolean |
detect(Mat img,
Mat points)
Detects QR code in image and returns the quadrangle containing the code.
|
String |
detectAndDecode(Mat img)
Both detects and decodes QR code
|
String |
detectAndDecode(Mat img,
Mat points)
Both detects and decodes QR code
|
String |
detectAndDecode(Mat img,
Mat points,
Mat straight_qrcode)
Both detects and decodes QR code
|
boolean |
detectAndDecodeMulti(Mat img,
List<String> decoded_info)
Both detects and decodes QR codes
|
boolean |
detectAndDecodeMulti(Mat img,
List<String> decoded_info,
Mat points)
Both detects and decodes QR codes
|
boolean |
detectAndDecodeMulti(Mat img,
List<String> decoded_info,
Mat points,
List<Mat> straight_qrcode)
Both detects and decodes QR codes
|
boolean |
detectMulti(Mat img,
Mat points)
Detects QR codes in image and returns the vector of the quadrangles containing the codes.
|
protected void |
finalize() |
long |
getNativeObjAddr() |
void |
setEpsX(double epsX)
sets the epsilon used during the horizontal scan of QR code stop marker detection.
|
void |
setEpsY(double epsY)
sets the epsilon used during the vertical scan of QR code stop marker detection.
|
protected QRCodeDetector(long addr)
public QRCodeDetector()
public long getNativeObjAddr()
public static QRCodeDetector __fromPtr__(long addr)
public boolean decodeMulti(Mat img, Mat points, List<String> decoded_info, List<Mat> straight_qrcode)
img
- grayscale or color (BGR) image containing QR 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_qrcode
- The optional output vector of images containing rectified and binarized QR codespublic boolean decodeMulti(Mat img, Mat points, List<String> decoded_info)
img
- grayscale or color (BGR) image containing QR 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).public boolean detect(Mat img, Mat points)
img
- grayscale or color (BGR) image containing (or not) QR code.points
- Output vector of vertices of the minimum-area quadrangle containing the code.public boolean detectAndDecodeMulti(Mat img, List<String> decoded_info, Mat points, List<Mat> straight_qrcode)
img
- grayscale or color (BGR) image containing QR 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 QR code quadrangles. Will be empty if not found.straight_qrcode
- The optional output vector of images containing rectified and binarized QR codespublic boolean detectAndDecodeMulti(Mat img, List<String> decoded_info, Mat points)
img
- grayscale or color (BGR) image containing QR 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 QR code quadrangles. Will be empty if not found.public boolean detectAndDecodeMulti(Mat img, List<String> decoded_info)
img
- grayscale or color (BGR) image containing QR codes.decoded_info
- UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.public boolean detectMulti(Mat img, Mat points)
img
- grayscale or color (BGR) image containing (or not) QR codes.points
- Output vector of vector of vertices of the minimum-area quadrangle containing the codes.public String decode(Mat img, Mat points, Mat straight_qrcode)
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 codepublic String decode(Mat img, Mat points)
img
- grayscale or color (BGR) image containing QR code.points
- Quadrangle vertices found by detect() method (or some other algorithm).public String detectAndDecode(Mat img, Mat points, Mat straight_qrcode)
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 codepublic String detectAndDecode(Mat img, Mat points)
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.public String detectAndDecode(Mat img)
img
- grayscale or color (BGR) image containing QR code.public void setEpsX(double epsX)
epsX
- Epsilon neighborhood, which allows you to determine the horizontal pattern
of the scheme 1:1:3:1:1 according to QR code standard.public void setEpsY(double epsY)
epsY
- Epsilon neighborhood, which allows you to determine the vertical pattern
of the scheme 1:1:3:1:1 according to QR code standard.Copyright © 2020. All rights reserved.