Enum TransferFunction 

#[non_exhaustive]
#[repr(u8)]
pub enum TransferFunction {
    Linear = 0,
    Srgb = 1,
    Bt709 = 2,
    Pq = 3,
    Hlg = 4,
    Unknown = 255,
}

Electro-optical transfer function.

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.

Linear = 0

Linear light (gamma 1.0).

Srgb = 1

sRGB transfer curve (IEC 61966-2-1).

Bt709 = 2

BT.709 transfer curve.

Pq = 3

Perceptual Quantizer (SMPTE ST 2084, HDR10).

Hlg = 4

Hybrid Log-Gamma (ARIB STD-B67, HLG).

Unknown = 255

Transfer function is not known.

Implementations

impl TransferFunction

pub const fn from_cicp(tc: u8) -> Option<TransferFunction>

Map CICP transfer_characteristics code to a TransferFunction.

pub const fn to_cicp(self) -> Option<u8>

Convert to the CICP transfer_characteristics code.

pub fn reference_white_nits(&self) -> f32

Reference white luminance in nits.

• SDR (sRGB, BT.709, Linear, Unknown): 1.0 (relative/scene-referred)
• PQ: 203.0 (ITU-R BT.2408 reference white)
• HLG: 1.0 (scene-referred)

Trait Implementations

impl Clone for TransferFunction

fn clone(&self) -> TransferFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransferFunction

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

Formats the value using the given formatter.

impl Display for TransferFunction

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

Formats the value using the given formatter.

impl Hash for TransferFunction

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 TransferFunction

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TransferFunctionExt for TransferFunction

fn linearize(&self, v: f32) -> f32

Scalar EOTF: encoded signal → linear light.

fn delinearize(&self, v: f32) -> f32

Scalar OETF: linear light → encoded signal.

impl Copy for TransferFunction

impl Eq for TransferFunction

impl StructuralPartialEq for TransferFunction