l.a.b. values for Pantone colors

[Bondi_dan]

Hi Gordo,

As I mentioned there is no ISO Standard way to evaluate spot colours.

There is some very, very interesting work going on in ISO 17972-4 - Spot Colour Characterisation data (CxF/X4). This Standard is all about communicating spot colour information by specifying how to describe the spectral information of spot colours and carrying that around inside PDF files. More complex than Lab* but much more flexible. In the future software will pull the Lab* value out of the PDF.

Gordo, if you want ISO Standards to be defined outside "Printistan" then you should get involved in your local TC130 Committee It is not as bad as it seems and good people around the world like me are involved.

Although I am a FIRST Implementation Specialist Level II, I do not recall the use of CMC 2:1 - if that is stated as the standard in FIRST 4.0 I will start campaigning against it tomorrow

Delta E 2000 will become the mainstream in the future.

Regards,

Dan