Trait opencv::prelude::OCRHMMDecoderTrait

source · 
pub trait OCRHMMDecoderTrait: BaseOCR + OCRHMMDecoderTraitConst {
    fn as_raw_mut_OCRHMMDecoder(&mut self) -> *mut c_void;

    fn run_multiple(
        &mut self,
        image: &mut Mat,
        output_text: &mut String,
        component_rects: &mut Vector<Rect>,
        component_texts: &mut Vector<String>,
        component_confidences: &mut Vector<f32>,
        component_level: i32
    ) -> Result<()> { ... }
    fn run_multiple_mask(
        &mut self,
        image: &mut Mat,
        mask: &mut Mat,
        output_text: &mut String,
        component_rects: &mut Vector<Rect>,
        component_texts: &mut Vector<String>,
        component_confidences: &mut Vector<f32>,
        component_level: i32
    ) -> Result<()> { ... }
    fn run(
        &mut self,
        image: &dyn ToInputArray,
        min_confidence: i32,
        component_level: i32
    ) -> Result<String> { ... }
    fn run_mask(
        &mut self,
        image: &dyn ToInputArray,
        mask: &dyn ToInputArray,
        min_confidence: i32,
        component_level: i32
    ) -> Result<String> { ... }
}

Required Methods§

Provided Methods§

Recognize text using HMM.

Takes binary image on input and returns recognized text in the output_text parameter. Optionally provides also the Rects for individual text elements found (e.g. words), and the list of those text elements with their confidence values.

Parameters

  • image: Input binary image CV_8UC1 with a single text line (or word).

  • output_text: Output text. Most likely character sequence found by the HMM decoder.

  • component_rects: If provided the method will output a list of Rects for the individual text elements found (e.g. words).

  • component_texts: If provided the method will output a list of text strings for the recognition of individual text elements found (e.g. words).

  • component_confidences: If provided the method will output a list of confidence values for the recognition of individual text elements found (e.g. words).

  • component_level: Only OCR_LEVEL_WORD is supported.

C++ default parameters
  • component_rects: NULL
  • component_texts: NULL
  • component_confidences: NULL
  • component_level: 0

Recognize text using HMM.

Takes an image and a mask (where each connected component corresponds to a segmented character) on input and returns recognized text in the output_text parameter. Optionally provides also the Rects for individual text elements found (e.g. words), and the list of those text elements with their confidence values.

Parameters

  • image: Input image CV_8UC1 or CV_8UC3 with a single text line (or word).

  • mask: Input binary image CV_8UC1 same size as input image. Each connected component in mask corresponds to a segmented character in the input image.

  • output_text: Output text. Most likely character sequence found by the HMM decoder.

  • component_rects: If provided the method will output a list of Rects for the individual text elements found (e.g. words).

  • component_texts: If provided the method will output a list of text strings for the recognition of individual text elements found (e.g. words).

  • component_confidences: If provided the method will output a list of confidence values for the recognition of individual text elements found (e.g. words).

  • component_level: Only OCR_LEVEL_WORD is supported.

C++ default parameters
  • component_rects: NULL
  • component_texts: NULL
  • component_confidences: NULL
  • component_level: 0
C++ default parameters
  • component_level: 0
C++ default parameters
  • component_level: 0

Implementors§