ICC Characterization Data RegistryThe characterization data specified in this registry provides a way for standards organizations and others to identify sets of characterization data for standard printing processes and three-component (including RGB) color encodings.
The Characterization Data Registry has two main sections:
The CMYK Data Registry contains characterization data for CMYK printing processes which conform to the relevant Part of ISO 12647.
The 3-component Color Encoding Registry contains encoding details for three-component (mostly RGB) encodings, largely based on ISO and IEC standards.
Profiles based on some of the registered CMYK data sets have been provided by industry organizations and can be found in the ICC Profile Registry. Profiles based on RGB encodings, where available, can be found on the information page for that encoding. This information is given in good faith, but inclusion of a link to a profile does not imply endorsement of the quality of that profile by ICC.
Guidelines on the use of characterization data
Registered characterization data sets may be used for the creation of profiles, subject to the following restriction. Since one of the principle objectives of this registry is to provide a means whereby users may know the source from which ICC Profiles were created, any profiles which are produced from registered data must include the charTargetTag with the value "ICCHDAT refer.name" where refer.name is the Reference Name of the characterization data as listed in this registry. These profiles should also include refer.name in the profileDescriptionTag (e.g., "Based on refer.name"). Users should note that being based on a registered set of data does not by itself guarantee the quality of the profile, nor should it be seen as an endorsement of the profile by the ICC.
Characterization data structure
Each set of characterization data registered by the ICC contains a Reference Name. Standards groups (including PDF/X and JDF) are using these reference names to identify the characterization data sets within their specifications and have requested that ICC maintain the specified reference names, together with the respective data, and not change them without discussion. They, in turn, have agreed that both PDF/X and JDF will use the same identifiers, so long as they are predictably located in the ICC registry. This the ICC has agreed to.
The ICC Registry is standardized in accordance with the following technical requirements:
Vendor specific characterization data can also be registered. For details, please contact the ICC Technical Secretary
Please send feedback and comments on this data registry to the ICC Technical Secretary.