Struct opencv::img_hash::BlockMeanHash

pub struct BlockMeanHash { /* private fields */ }

Image hash based on block mean.

See zauner2010implementation for details.

Implementations

impl BlockMeanHash

pub fn create(mode: i32) -> Result<Ptr<BlockMeanHash>>

C++ default parameters

• mode: BLOCK_MEAN_HASH_MODE_0

pub fn create_def() -> Result<Ptr<BlockMeanHash>>

Note

This alternative version of BlockMeanHash::create function uses the following default values for its arguments:

• mode: BLOCK_MEAN_HASH_MODE_0

Trait Implementations

impl AlgorithmTrait for BlockMeanHash

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

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

Clears the algorithm state

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

Reads algorithm parameters from a file storage

impl AlgorithmTraitConst for BlockMeanHash

fn as_raw_Algorithm(&self) -> *const c_void

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

Stores algorithm parameters in a file storage

fn write_1(&self, fs: &mut FileStorage, 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 BlockMeanHashTrait for BlockMeanHash

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

fn set_mode(&mut self, mode: i32) -> Result<()>

Create BlockMeanHash object

impl BlockMeanHashTraitConst for BlockMeanHash

fn as_raw_BlockMeanHash(&self) -> *const c_void

fn get_mean(&self) -> Result<Vector<f64>>

impl Boxed for BlockMeanHash

unsafe fn from_raw(ptr: *mut c_void) -> Self

Wrap the specified raw pointer

fn into_raw(self) -> *mut c_void

Return an the underlying raw pointer while consuming this wrapper.

fn as_raw(&self) -> *const c_void

Return the underlying raw pointer.

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

Return the underlying mutable raw pointer

impl Debug for BlockMeanHash

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

Formats the value using the given formatter.

impl Drop for BlockMeanHash

fn drop(&mut self)

Executes the destructor for this type.

impl From<BlockMeanHash> for Algorithm

fn from(s: BlockMeanHash) -> Self

Converts to this type from the input type.

impl From<BlockMeanHash> for ImgHashBase

fn from(s: BlockMeanHash) -> Self

Converts to this type from the input type.

impl ImgHashBaseTrait for BlockMeanHash

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

fn compute( &mut self, input_arr: &impl ToInputArray, output_arr: &mut impl ToOutputArray ) -> Result<()>

Computes hash of the input image

impl ImgHashBaseTraitConst for BlockMeanHash

fn as_raw_ImgHashBase(&self) -> *const c_void

fn compare( &self, hash_one: &impl ToInputArray, hash_two: &impl ToInputArray ) -> Result<f64>

Compare the hash value between inOne and inTwo

impl Send for BlockMeanHash