Re: RBG printer profiling - i1 Match vs ProfileMaker Pro
Re: RBG printer profiling - i1 Match vs ProfileMaker Pro
- Subject: Re: RBG printer profiling - i1 Match vs ProfileMaker Pro
- From: neil_snape <email@hidden>
- Date: Thu, 03 Nov 2005 12:41:45 +0100
- Thread-topic: RBG printer profiling - i1 Match vs ProfileMaker Pro
Title: Re: RBG printer profiling - i1 Match vs ProfileMaker Pro
on 3/11/05 12:18, Steve Kale wrote :
OK got it – thanks. I assume that EyeOne Match would default to a size like PM 5 “default” and “neutral grey” for grey axis handling.
Any ideas as to which gamut mapping option is likely employed in Match and, for that matter, viewing light source (I assume D50 as that is what’s embedded in the CIED tag in the profiles it generates) and whether there is correction for optical brighteners (Match profiles have compensateflourescence=”1”)?
>From what I read and see Match uses ChromaPlus rendering, and optical brighteners are always on and as you know not selectable. Both OB and paper grey only affect perceptual in any case. Match profiles have perceptual rendering as the default tagged in the profile. D50 is only viewing source and profile default in Match. Yes the 1 is the bit that applies OB options in the code of the software , both Match and PM.
(I use a different program for B&W ICC profiles made by Roy Harrington. It creates profiles that manage the luminance axis for the PCS to printer direction (no hue management) but soft proof both colour and luminance information. Hue management is left to the ink selection in a rip or tint picker in Epson Adv B&W. But I am trying to learn more about how luminance is managed by the various perceptual intent algorithms out there versus relcol + Adobe bpc – but that’s another thread.)
That’s what everyone likes about R. Harrington's application of B&W printing. I’m still surprised to this day how ICC ratified Gray profiles a long time ago yet few developers pay much attention to the needs of gray and or multi-tone low gamut ink sets. I like the Quartz filter option in OsX yet it is platform specific and usable only in certain conditions.
--
Neil Snape photographer Paris France http://www.neilsnape.com
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