Enum NormalizationPreset 

#[non_exhaustive]
#[repr(u32)]
pub enum NormalizationPreset {
    Unsigned = 0,
    Signed = 1,
    Raw = 2,
    Imagenet = 3,
}

A named Normalization. The code is the one the C EF_NORMALIZATION_* enumerators and the Python NormalizationPreset enum use; the names match the edgefirst.json presets.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unsigned = 0

x / 255, giving [0, 1] (the default).

Signed = 1

x / 127.5 - 1, giving [-1, 1].

Raw = 2

x, giving [0, 255].

Imagenet = 3

ImageNet mean and standard deviation.

Implementations

impl NormalizationPreset

pub const fn code(self) -> u32

The shared code for this variant. Identical on every surface.

const, deliberately: a downstream binding that cannot write Variant = OtherEnum::Variant.code() in a #[pyclass] discriminant position (PyO3 requires a literal there) can still pin that literal to this value with a const _: () = assert!(...) – a build-time check instead of a hand-synced comment. See PyTensorMemory/PyPixelFormat in crates/python-common/src/tensor.rs for the consumer.

pub fn from_code(code: u32) -> Option<NormalizationPreset>

Reject an unknown code rather than guessing at one.

pub fn as_str(self) -> &'static str

The wire string form – stable, unlike Debug.

pub fn from_str_code(s: &str) -> Option<NormalizationPreset>

Reject an unknown string rather than guessing at one.

pub fn all() -> &'static [NormalizationPreset]

Every variant, for exhaustive cross-surface tests.

Trait Implementations

impl Clone for NormalizationPreset

fn clone(&self) -> NormalizationPreset

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NormalizationPreset

impl Debug for NormalizationPreset

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

Formats the value using the given formatter.

impl Default for NormalizationPreset

fn default() -> NormalizationPreset

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NormalizationPreset

fn deserialize<D>( d: D, ) -> Result<NormalizationPreset, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for NormalizationPreset

impl From<NormalizationPreset> for Normalization

fn from(p: NormalizationPreset) -> Normalization

Converts to this type from the input type.

impl Hash for NormalizationPreset

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for NormalizationPreset

fn eq(&self, other: &NormalizationPreset) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for NormalizationPreset

fn serialize<S>( &self, s: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for NormalizationPreset