Trait opencv::prelude::BarcodeDetectorTraitConst

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pub trait BarcodeDetectorTraitConst {
    // Required method
    fn as_raw_BarcodeDetector(&self) -> *const c_void;

    // Provided methods
    fn detect(
        &self,
        img: &dyn ToInputArray,
        points: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }
    fn decode(
        &self,
        img: &dyn ToInputArray,
        points: &dyn ToInputArray,
        decoded_info: &mut Vector<String>,
        decoded_type: &mut Vector<BarcodeType>
    ) -> Result<bool> { ... }
    fn detect_and_decode(
        &self,
        img: &dyn ToInputArray,
        decoded_info: &mut Vector<String>,
        decoded_type: &mut Vector<BarcodeType>,
        points: &mut dyn ToOutputArray
    ) -> Result<bool> { ... }
}
Expand description

Constant methods for crate::barcode::BarcodeDetector

Required Methods§

source

fn as_raw_BarcodeDetector(&self) -> *const c_void

Provided Methods§

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

Detects Barcode in image and returns the rectangle(s) containing the code.

Parameters
  • img: grayscale or color (BGR) image containing (or not) Barcode.
  • points: Output vector of vector of vertices of the minimum-area rotated rectangle containing the codes. 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.
source

fn decode( &self, img: &dyn ToInputArray, points: &dyn ToInputArray, decoded_info: &mut Vector<String>, decoded_type: &mut Vector<BarcodeType> ) -> Result<bool>

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 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 of BarcodeType, specifies the type of these barcodes
source

fn detect_and_decode( &self, img: &dyn ToInputArray, decoded_info: &mut Vector<String>, decoded_type: &mut Vector<BarcodeType>, points: &mut dyn ToOutputArray ) -> Result<bool>

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 BarcodeType, specifies the type of these barcodes
  • points: optional output vector of vertices of the found barcode rectangle. Will be empty if not found.
C++ default parameters
  • points: noArray()

Implementors§