colorkt/dev.kdrag0n.colorkt.cam/Zcam/ViewingConditions

ViewingConditions

data class ViewingConditions(surroundFactor: Double, adaptingLuminance: Double, backgroundLuminance: Double, referenceWhite: CieXyzAbs)

The conditions under which a color modeled by ZCAM will be viewed. This is defined by the luminance of the adapting field, luminance of the background, and surround factor.

For performance, viewing conditions should be created once and reused for all ZCAM conversions unless they have changed. Creating an instance of ViewingConditions performs calculations that are reused throughout the ZCAM model.

Constructors

ViewingConditions

fun ViewingConditions(surroundFactor: Double, adaptingLuminance: Double, backgroundLuminance: Double, referenceWhite: CieXyzAbs)

Types

Companion

object Companion

Properties

adaptingLuminance

val adaptingLuminance: Double

Absolute luminance of the adapting field. This can be calculated as L_w * backgroundLuminance / 100 where L_w is the luminance of referenceWhite, but it is a user-controlled parameter for flexibility.

backgroundLuminance

val backgroundLuminance: Double

Absolute luminance of the background.

referenceWhite

val referenceWhite: CieXyzAbs

Reference white point in absolute XYZ.

surroundFactor

val surroundFactor: Double

Surround factor, which models the surround field (distant background).