Comments on: #33: Thoughts on GRACoL 7 and Standards in General http://jimraffel.com/2006/05/04/33-thoughts-on-gracol-7-and-standards-in-general/ A printing industry blog focusing on color measurement, printing, ink, paper, spectrophotometers, and densitometers. Tue, 06 Jan 2009 09:15:48 +0000 http://wordpress.org/?v=2.3.3 By: Erik Nikkanen http://jimraffel.com/2006/05/04/33-thoughts-on-gracol-7-and-standards-in-general/#comment-168 Erik Nikkanen Sat, 02 Sep 2006 16:57:13 +0000 http://jimraffel.com/2006/05/04/33-thoughts-on-gracol-7-and-standards-in-general/#comment-168 Just a thought regarding the GRACoL 7 method. It depends greatly on the neutral density curve concept but if many images use some form of GCR to remove the neutral gray from CMY values, then most images will not even have the data that would be the most accurate in the GRACoL 7 approach. Even Don H. has stated that the accuracy of the method is the highest near the neutral density curve values. He does not guarantee the highest accuracy elsewhere in the space. If the images do not have the neutral density CMY data in them, then it implies that the rest of the image can not be of the highest accuracy. Just a thought. Erik Just a thought regarding the GRACoL 7 method.

It depends greatly on the neutral density curve concept but if many images use some form of GCR to remove the neutral gray from CMY values, then most images will not even have the data that would be the most accurate in the GRACoL 7 approach.

Even Don H. has stated that the accuracy of the method is the highest near the neutral density curve values. He does not guarantee the highest accuracy elsewhere in the space. If the images do not have the neutral density CMY data in them, then it implies that the rest of the image can not be of the highest accuracy.

Just a thought.

Erik

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