Re: Looking for BestColor Expert
Re: Looking for BestColor Expert
- Subject: Re: Looking for BestColor Expert
- From: Darrin Southern <email@hidden>
- Date: Fri, 30 Mar 2001 11:10:43 +1000
>
> So if you send tagged RGB to the RIP, I'd say to activate your
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> Printopen 4 Paper Profile and set the rendering intent to Perceptual
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> in the BEST RIP (it now has this option).
>
>
I can tell you this, BEST will NOT recognize the tagged RGB (yes, even if
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you check on the "Use in TIFF embedded profiles" box). This is a bit of a
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sore spot for me because I believe it does not work as intended or how I was
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told this feature worked by BESTColor tech support.
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>
For an RGB workflow, I've found you simply plug in your CMYK paper profile
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as the "Paper" and your RGB working space as the "Source" (this could be a
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scanner profile but that would be unusual I would think) and it will ASSUME
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this RGB working space regardless of what the image is tagged with. Wrong in
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my opinion, but that's been my experience. To be fair, I haven't retested
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this with the latest version I have (4.2.2). Whether or not you use the
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"Base Linearization" feature is up to you. It's only a requirement for
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certain printer output settings, for example when using Super Enhanced on an
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Epson. Really, the only thing the base lin gives you is the ability to set
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PER CHANNEL ink limits instead of simply global ink limits. And the base
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linearization is not necessarily tied to the paper profile. This only
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happens if you use BEST's "ProfileKeeper" utility (profile patching
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utility). ProfileKeeper let's you "tag" the paper profile with all the
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settings used to make that profile (dot shape/printer settings, total ink
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and per channel limits and the base linearization file).
I have to say that the integrity of any custom profile (also canned for that
matter) is tied to the quality of the baseline. The baseline function is to
set the max ink densities of each color, to minimize the amount of work the
profile needs to perform with regard to re-mapping colors. Remember that you
then do the 'quality of colors' test to set the overall ink limit, which is
also critical for ink jets. This is when you now profile your current ink
and paper combination.
The canned profiles are linked the baseline, not just because they have been
through ProfileKeeper. ProfileKeeper is to ensure a user does not
accidentally apply the wrong baseline to the profile, as you can still
overide this by selecting the ability to change the values.
Try it, and see how you can mess with your output !
(Do not try this at home kids)
Darrin.