Struct lcms2::ToneCurve

pub struct ToneCurve(_);

Methods

impl ToneCurve

fn new(gamma: f64) -> Self

fn new_tabulated(values: &[u16]) -> Self

fn new_tabulated_float(values: &[f32]) -> Self

Methods from Deref<Target = ToneCurveRef>

fn reversed(&self) -> ToneCurve

Creates a tone curve that is the inverse of given tone curve.

fn reversed_samples(&self, samples: usize) -> ToneCurve

Creates a tone curve that is the inverse of given tone curve. In the case it couldn’t be analytically reversed, a tablulated curve of nResultSamples is created.

fn join(&self, y: &ToneCurveRef, points: usize) -> ToneCurve

Composites two tone curves in the form Y^-1(X(t)) (self is X, the argument is Y)

fn is_multisegment(&self) -> bool

fn is_linear(&self) -> bool

fn is_monotonic(&self) -> bool

fn is_descending(&self) -> bool

fn parametric_type(&self) -> i32

fn estimated_gamma(&self, precision: f64) -> Option<f64>

Estimates the apparent gamma of the tone curve by using least squares fitting. Precision: The maximum standard deviation allowed on the residuals, 0.01 is a fair value, set it to a big number to fit any curve, mo matter how good is the fit.

fn smooth(&mut self, lambda: f64) -> bool

fn estimated_entries(&self) -> &[u16]

fn eval<ToneCurveValue: FloatOrU16>(&self, v: ToneCurveValue) -> ToneCurveValue

Evaluates the given number (u16 or f32) across the given tone curve.

This function is significantly faster for u16, since it uses a pre-computed 16-bit lookup table.

Trait Implementations

impl ForeignType for ToneCurve

type CType = ToneCurve

The raw C type.

type Ref = ToneCurveRef

The type representing a reference to this type.

unsafe fn from_ptr(ptr: *mut ToneCurve) -> ToneCurve

Constructs an instance of this type from its raw type.

fn as_ptr(&self) -> *mut ToneCurve

Returns a raw pointer to the wrapped value.

impl Drop for ToneCurve

fn drop(&mut self)

A method called when the value goes out of scope.

impl Deref for ToneCurve

type Target = ToneCurveRef

The resulting type after dereferencing

fn deref(&self) -> &ToneCurveRef

The method called to dereference a value

impl DerefMut for ToneCurve

fn deref_mut(&mut self) -> &mut ToneCurveRef

The method called to mutably dereference a value

impl Clone for ToneCurve

fn clone(&self) -> ToneCurve

Returns a copy of the value.

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

Performs copy-assignment from source.