[−][src]Trait opencv::prelude::QRCodeDetectorTrait

pub trait QRCodeDetectorTrait {
    pub fn as_raw_QRCodeDetector(&self) -> *const c_void;

    pub fn as_raw_mut_QRCodeDetector(&mut self) -> *mut c_void;

    pub fn set_eps_x(&mut self, eps_x: f64) -> Result<()> { ... }

    pub fn set_eps_y(&mut self, eps_y: f64) -> Result<()> { ... }

    pub fn detect(
        &self, 
        img: &dyn ToInputArray, 
        points: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }

    pub fn decode(
        &mut self, 
        img: &dyn ToInputArray, 
        points: &dyn ToInputArray, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<String> { ... }

    pub fn decode_curved(
        &mut self, 
        img: &dyn ToInputArray, 
        points: &dyn ToInputArray, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<String> { ... }

    pub fn detect_and_decode(
        &mut self, 
        img: &dyn ToInputArray, 
        points: &mut dyn ToOutputArray, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<String> { ... }

    pub fn detect_and_decode_curved(
        &mut self, 
        img: &dyn ToInputArray, 
        points: &mut dyn ToOutputArray, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<String> { ... }

    pub fn detect_multi(
        &self, 
        img: &dyn ToInputArray, 
        points: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }

    pub fn decode_multi(
        &self, 
        img: &dyn ToInputArray, 
        points: &dyn ToInputArray, 
        decoded_info: &mut Vector<String>, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }

    pub fn detect_and_decode_multi(
        &self, 
        img: &dyn ToInputArray, 
        decoded_info: &mut Vector<String>, 
        points: &mut dyn ToOutputArray, 
        straight_qrcode: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }
}

Required methods

pub fn as_raw_QRCodeDetector(&self) -> *const c_void[src]

pub fn as_raw_mut_QRCodeDetector(&mut self) -> *mut c_void[src]

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Provided methods

pub fn set_eps_x(&mut self, eps_x: f64) -> Result<()>[src]

sets the epsilon used during the horizontal scan of QR code stop marker detection.

Parameters

  • epsX: Epsilon neighborhood, which allows you to determine the horizontal pattern of the scheme 1:1:3:1:1 according to QR code standard.

pub fn set_eps_y(&mut self, eps_y: f64) -> Result<()>[src]

sets the epsilon used during the vertical scan of QR code stop marker detection.

Parameters

  • epsY: Epsilon neighborhood, which allows you to determine the vertical pattern of the scheme 1:1:3:1:1 according to QR code standard.

pub fn detect(
    &self,
    img: &dyn ToInputArray,
    points: &mut dyn ToOutputArray
) -> Result<bool>[src]

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

Parameters

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

pub fn decode(
    &mut self,
    img: &dyn ToInputArray,
    points: &dyn ToInputArray,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<String>[src]

Decodes QR 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 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

C++ default parameters

  • straight_qrcode: noArray()

pub fn decode_curved(
    &mut self,
    img: &dyn ToInputArray,
    points: &dyn ToInputArray,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<String>[src]

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

  • 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

C++ default parameters

  • straight_qrcode: noArray()

pub fn detect_and_decode(
    &mut self,
    img: &dyn ToInputArray,
    points: &mut dyn ToOutputArray,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<String>[src]

Both detects and decodes QR code

Parameters

  • 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

C++ default parameters

  • points: noArray()
  • straight_qrcode: noArray()

pub fn detect_and_decode_curved(
    &mut self,
    img: &dyn ToInputArray,
    points: &mut dyn ToOutputArray,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<String>[src]

Both detects and decodes QR code on a curved surface

Parameters

  • 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

C++ default parameters

  • points: noArray()
  • straight_qrcode: noArray()

pub fn detect_multi(
    &self,
    img: &dyn ToInputArray,
    points: &mut dyn ToOutputArray
) -> Result<bool>[src]

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

Parameters

  • 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.

pub fn decode_multi(
    &self,
    img: &dyn ToInputArray,
    points: &dyn ToInputArray,
    decoded_info: &mut Vector<String>,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<bool>[src]

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

Parameters

  • 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 codes

C++ default parameters

  • straight_qrcode: noArray()

pub fn detect_and_decode_multi(
    &self,
    img: &dyn ToInputArray,
    decoded_info: &mut Vector<String>,
    points: &mut dyn ToOutputArray,
    straight_qrcode: &mut dyn ToOutputArray
) -> Result<bool>[src]

Both detects and decodes QR codes

Parameters

  • 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 codes

C++ default parameters

  • points: noArray()
  • straight_qrcode: noArray()
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Implementors

impl QRCodeDetectorTrait for QRCodeDetector[src]

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