opencv::hub_prelude

Trait TextRecognitionModelTrait

Source 
pub trait TextRecognitionModelTrait: ModelTrait + TextRecognitionModelTraitConst {
    // Required method
    fn as_raw_mut_TextRecognitionModel(&mut self) -> *mut c_void;

    // Provided methods
    fn set_decode_type(
        &mut self,
        decode_type: &str,
    ) -> Result<TextRecognitionModel> { ... }
    fn set_decode_opts_ctc_prefix_beam_search(
        &mut self,
        beam_size: i32,
        voc_prune_size: i32,
    ) -> Result<TextRecognitionModel> { ... }
    fn set_decode_opts_ctc_prefix_beam_search_def(
        &mut self,
        beam_size: i32,
    ) -> Result<TextRecognitionModel> { ... }
    fn set_vocabulary(
        &mut self,
        vocabulary: &Vector<String>,
    ) -> Result<TextRecognitionModel> { ... }
}
Expand description

Mutable methods for crate::dnn::TextRecognitionModel

Required Methods§

Source

fn as_raw_mut_TextRecognitionModel(&mut self) -> *mut c_void

Provided Methods§

Source

fn set_decode_type(&mut self, decode_type: &str) -> Result<TextRecognitionModel>

Set the decoding method of translating the network output into string

§Parameters
  • decodeType: The decoding method of translating the network output into string, currently supported type:
    • "CTC-greedy" greedy decoding for the output of CTC-based methods
    • "CTC-prefix-beam-search" Prefix beam search decoding for the output of CTC-based methods

Set the decoding method options for "CTC-prefix-beam-search" decode usage

§Parameters
  • beamSize: Beam size for search
  • vocPruneSize: Parameter to optimize big vocabulary search, only take top @p vocPruneSize tokens in each search step, @p vocPruneSize <= 0 stands for disable this prune.
§C++ default parameters
  • voc_prune_size: 0
Source

fn set_decode_opts_ctc_prefix_beam_search_def( &mut self, beam_size: i32, ) -> Result<TextRecognitionModel>

Set the decoding method options for "CTC-prefix-beam-search" decode usage

§Parameters
  • beamSize: Beam size for search
  • vocPruneSize: Parameter to optimize big vocabulary search, only take top @p vocPruneSize tokens in each search step, @p vocPruneSize <= 0 stands for disable this prune.
§Note

This alternative version of TextRecognitionModelTrait::set_decode_opts_ctc_prefix_beam_search function uses the following default values for its arguments:

  • voc_prune_size: 0
Source

fn set_vocabulary( &mut self, vocabulary: &Vector<String>, ) -> Result<TextRecognitionModel>

Set the vocabulary for recognition.

§Parameters
  • vocabulary: the associated vocabulary of the network.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§