Characterisation sets the relationship of the calibrated state of a device to a device independent reference colour space. Kodak's Precision Color Management System uses Precision Transforms, also known as Colour Profiles, to translate from a device, or an application, colour, to the common reference space. A series of Precision Transforms must be loaded or created for source and destination devices and then combined to efficiently correct colour. Third party applications that include the Kodak Colour Processor pass the component Precision Transforms to the Processor where they are combined into one. This transform directly links colour from the input device to output device.
Precision Transforms can be either generic or custom generated. Generic Precision Transforms are available through Kodak or other third party vendors for popular devices on the market. They are constructed for average device settings and characteristics using scientific assumptions about the way a particular device interprets colour.
Where optimal colour quality is critical, Kodak offers many software packages that generate custom Precision Transforms. These include Kodak Precision Input Color Characterisation software. This determines how scanners see colour and allows the creation of a custom profile for any scanner.
The FotoTune package consists of a set of ColorTags (device profiles) for a range of output devices, a method of creating ColorTags for scanners, and a method of creating colour links between the two. Its ColorTags are compatible with ColorSync. The available range of ColorTags is very large and there is the implication in their literature that they can provide advice for other devices on request. There is also provision for out-of-gamut warnings if monitor colours are not reproducible on the selected output device.