Struct MultilevelDWTResult 

pub struct MultilevelDWTResult<T: SignalType> {
    pub approximation: Signal<T>,
    pub details: Vec<Signal<T>>,
    pub levels: usize,
    pub original_length: usize,
    pub per_level_lengths: Vec<usize>,
}

Result of a multi-level DWT

Fields

approximation: Signal<T>

Final approximation coefficients

details: Vec<Signal<T>>

Detail coefficients at each level (from finest to coarsest)

levels: usize

Number of decomposition levels

original_length: usize

Length of the original input signal (the input fed to dwt_multilevel).

per_level_lengths: Vec<usize>

Per-level original input lengths (finest level first). per_level_lengths[0] equals original_length; per_level_lengths[i] is the input length at level i, which is the previous level’s approximation length. Stored because M and L alone cannot determine whether the source was N = 2M − L + 1 or N = 2M − L + 2 (parity ambiguity), so each inverse step needs the recorded length to truncate canonically.

Implementations

impl<T: SignalType> MultilevelDWTResult<T>

pub fn new( approximation: Signal<T>, details: Vec<Signal<T>>, per_level_lengths: Vec<usize>, ) -> Result<Self>

Construct a MultilevelDWTResult.

per_level_lengths[0] should equal the original input length and each subsequent entry the input length at that level (i.e. the previous level’s approximation length).

Returns Err(WaveletError::InvalidParameter) if per_level_lengths length doesn’t match details.len() — without this check the inverse cascade would silently produce wrong-length output.

Trait Implementations

impl<T: Clone + SignalType> Clone for MultilevelDWTResult<T>

fn clone(&self) -> MultilevelDWTResult<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug + SignalType> Debug for MultilevelDWTResult<T>

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

Formats the value using the given formatter.