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Chromatic Adaptation — Transform Models

White-point mapping and illuminant adaptation transforms for accurate color reproduction across viewing conditions.

CAT02 Transform

Chromatic adaptation transform used in CIECAM02 for predicting corresponding colours.

Open CAT02
  • CIECAM02 component
  • Sharpened cone response
  • Degree of adaptation

CAT16 Transform

Updated chromatic adaptation transform for CIECAM16, improving upon CAT02 for extreme conditions.

Open CAT16
  • CIECAM16 component
  • Improved robustness
  • Wide-gamut support

CAT94 Transform

CIE 1994 chromatic adaptation transform based on corresponding colour experiments.

Open CAT94
  • CIE 1994 standard
  • Corresponding colours
  • Historical reference

CAT97 Transform

Chromatic adaptation transform from CIECAM97s, preceding CAT02 in appearance modelling.

Open CAT97
  • CIECAM97s component
  • Historical predecessor
  • Von Kries adaptation

Featured Resources

Selected transforms from the chromatic adaptation collection.

Industry Standard

Bradford transform — the default adaptation method in ICC colour management.

Modern CATs

CAT02 and CAT16 for CIECAM-based colour appearance prediction.

Historical Models

CAT94 and CAT97 providing foundational chromatic adaptation research.

Explore Chromatic Adaptation Transforms

Compare adaptation models and understand white-point mapping across illuminants.

Browse Chromatic Adaptation