---
title: "Adaptation"
description: "List of adaptation matrices that can be used for chromatic adaptation using the von Kries
transform. These matrices are used to convert values in the CIE XYZ space to values in the LMS
space (Long Medium Short).

Given an adaptation matrix `A`, the conversion from XYZ to LMS is straightforward:

[See
equation](https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)

The complete von Kries transform `T` uses a diagonal matrix noted `D` to perform the adaptation
in LMS space. In addition to `A` and `D`, the source white point `W1` and the destination white
point `W2` must be specified:

[See
equation](https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)

As an example, the resulting matrix `T` can then be used to perform the chromatic adaptation of
sRGB XYZ transform from D65 to D50:

[See
equation](https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)"
type: "class"
---

<div class='type'>Class</div>


<a id='references'></a>

<div class='sourceset sourceset-common'>Common</div>


```kotlin
abstract class Adaptation private constructor(internal val transform: FloatArray)
```


List of adaptation matrices that can be used for chromatic adaptation using the von Kries
transform. These matrices are used to convert values in the CIE XYZ space to values in the LMS
space (Long Medium Short).

Given an adaptation matrix `A`, the conversion from XYZ to LMS is straightforward:

`See
equation`(https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)

The complete von Kries transform `T` uses a diagonal matrix noted `D` to perform the adaptation
in LMS space. In addition to `A` and `D`, the source white point `W1` and the destination white
point `W2` must be specified:

`See
equation`(https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)

As an example, the resulting matrix `T` can then be used to perform the chromatic adaptation of
sRGB XYZ transform from D65 to D50:

`See
equation`(https://developer.android.com/reference/android/graphics/ColorSpace.Adaptation.html)


## Companion Object

#### Properties

<div class='sourceset sourceset-common'>Common</div>


```kotlin
val Bradford =
        object :
            Adaptation(
                floatArrayOf(
                    0.8951f,
                    -0.7502f,
                    0.0389f,
                    0.2664f,
                    1.7135f,
                    -0.0685f,
                    -0.1614f,
                    0.0367f,
                    1.0296f,
                )
            ) {
            override fun toString() = "Bradford"
        }
```


Bradford chromatic adaptation transform, as defined in the CIECAM97s color appearance
model.



<div class='sourceset sourceset-common'>Common</div>


```kotlin
val VonKries =
        object :
            Adaptation(
                floatArrayOf(
                    0.40024f,
                    -0.22630f,
                    0.00000f,
                    0.70760f,
                    1.16532f,
                    0.00000f,
                    -0.08081f,
                    0.04570f,
                    0.91822f,
                )
            ) {
            override fun toString() = "VonKries"
        }
```


von Kries chromatic adaptation transform.



<div class='sourceset sourceset-common'>Common</div>


```kotlin
val Ciecat02 =
        object :
            Adaptation(
                floatArrayOf(
                    0.7328f,
                    -0.7036f,
                    0.0030f,
                    0.4296f,
                    1.6975f,
                    0.0136f,
                    -0.1624f,
                    0.0061f,
                    0.9834f,
                )
            ) {
            override fun toString() = "Ciecat02"
        }
```


CIECAT02 chromatic adaption transform, as defined in the CIECAM02 color appearance model.