Enum TransferFunction 

pub enum TransferFunction {
    Identity,
    Single(TransferFunctionData),
    Separate {
        c_or_r: TransferFunctionData,
        m_or_g: TransferFunctionData,
        y_or_b: TransferFunctionData,
        k: Option<TransferFunctionData>,
    },
}

Transfer function specification according to ISO 32000-1

Variants

Identity

Identity transfer function (no transformation)

Single(TransferFunctionData)

Single transfer function for all components

Separate

Separate transfer functions for each color component (C, M, Y, K or R, G, B)

Fields

c_or_r: TransferFunctionData

Function for first component (Cyan or Red)

m_or_g: TransferFunctionData

Function for second component (Magenta or Green)

y_or_b: TransferFunctionData

Function for third component (Yellow or Blue)

k: Option<TransferFunctionData>

Function for fourth component (Black) - optional for RGB

Implementations

impl TransferFunction

pub fn identity() -> Self

Create an identity transfer function

pub fn gamma(gamma_value: f64) -> Self

Create a gamma correction transfer function

pub fn linear(slope: f64, intercept: f64) -> Self

Create a linear transfer function with slope and intercept

pub fn to_pdf_string(&self) -> String

Convert transfer function to PDF representation

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

Formats the value using the given formatter.

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 StructuralPartialEq for TransferFunction