Calculate G7 NPDC CMY and K curves

General Color & Graphics Printer Calibration & Profiling
1

Does anyone know, how to calculate the NPDC(Neutral Print Density Curve) CMY curve and K curve from an ICC Profile?

Thanks

2

You should be able to calculate G7 in the “normal” manner once you retrieve the Lab values for the specific CMY curve and K curve device values from the profile.

In ColorThink, for instance, if you load the K or CMY values (or the whole P2P) from a file, then assign your profile, set the rendering intent to absolute colorimetric, and then save out the device and Lab values.

Then you should be able to calculate G7 in the conventional manner (documents available on the IDEAlliance.org website)

HTH

regards,

Steve