Struct ERFilter

pub struct ERFilter { /* private fields */ }

Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm Neumann12. :

Extracts the component tree (if needed) and filter the extremal regions (ER’s) by using a given classifier.

Trait Implementations

impl AlgorithmTrait for ERFilter

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

fn clear(&mut self) -> Result<()>

Clears the algorithm state

fn read(&mut self, fn_: &impl FileNodeTraitConst) -> Result<()>

Reads algorithm parameters from a file storage

impl AlgorithmTraitConst for ERFilter

fn as_raw_Algorithm(&self) -> *const c_void

fn write(&self, fs: &mut impl FileStorageTrait) -> Result<()>

Stores algorithm parameters in a file storage

fn write_1(&self, fs: &mut impl FileStorageTrait, name: &str) -> Result<()>

Stores algorithm parameters in a file storage

fn write_with_name(&self, fs: &Ptr<FileStorage>, name: &str) -> Result<()>

@deprecated

fn write_with_name_def(&self, fs: &Ptr<FileStorage>) -> Result<()>

👎Deprecated:

Note

Deprecated: ## Note This alternative version of AlgorithmTraitConst::write_with_name function uses the following default values for its arguments:

fn empty(&self) -> Result<bool>

Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read

fn save(&self, filename: &str) -> Result<()>

Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).

fn get_default_name(&self) -> Result<String>

Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string.

impl Boxed for ERFilter

unsafe fn from_raw(ptr: <ERFilter as OpenCVFromExtern>::ExternReceive) -> Self

Wrap the specified raw pointer

fn into_raw(self) -> <ERFilter as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying raw pointer while consuming this wrapper.

fn as_raw(&self) -> <ERFilter as OpenCVTypeExternContainer>::ExternSend

Return the underlying raw pointer.

fn as_raw_mut( &mut self, ) -> <ERFilter as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying mutable raw pointer

impl Debug for ERFilter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for ERFilter

fn drop(&mut self)

Executes the destructor for this type.

impl ERFilterTrait for ERFilter

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

fn run( &mut self, image: &impl ToInputArray, regions: &mut Vector<ERStat>, ) -> Result<()>

The key method of ERFilter algorithm.

fn set_callback(&mut self, cb: &Ptr<ERFilter_Callback>) -> Result<()>

set/get methods to set the algorithm properties,

fn set_threshold_delta(&mut self, threshold_delta: i32) -> Result<()>

fn set_min_area(&mut self, min_area: f32) -> Result<()>

fn set_max_area(&mut self, max_area: f32) -> Result<()>

fn set_min_probability(&mut self, min_probability: f32) -> Result<()>

fn set_min_probability_diff(&mut self, min_probability_diff: f32) -> Result<()>

fn set_non_max_suppression(&mut self, non_max_suppression: bool) -> Result<()>

impl ERFilterTraitConst for ERFilter

fn as_raw_ERFilter(&self) -> *const c_void

fn get_num_rejected(&self) -> Result<i32>

impl From<ERFilter> for Algorithm

fn from(s: ERFilter) -> Self

Converts to this type from the input type.

impl Send for ERFilter