Re: scanback profiling question
Re: scanback profiling question
- Subject: Re: scanback profiling question
- From: Steve Upton <email@hidden>
- Date: Fri, 9 May 2003 11:09:50 -0700
At 6:36 PM -0700 5/8/03, bruce fraser wrote:
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>When you select an intent, Photoshop and other apps use rel col for the device->PCS transform and then your chosen intent for the PCS->device transform.
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Actually, if the source profile is two-way and supports multiple rendering intents, Photoshop uses the chosen rendering intent for both sides of the conversion -- it started doing that in Photoshop 6. If the source profile is one-way and supports multiple rendering intents, Photoshop 7 uses the chosen rendering intent for both sides of the conversion, where Photoshop 6 always used relcol.
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At 5:42 PM -0700 8/7/02, Thomas Knoll wrote:
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>The ICC changed the spec to allow multiple intents for scanner (i.e. one-way) profiles after Photoshop 6 shipped and before Photoshop 7 shipped. We support this new feature in Photoshop 7.
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>If the source profile is two-way, multiple intents where always supported. The change is only for one-way input profiles.
I stand corrected.
I have just performed some tests and found that Photoshop does indeed support the same intent table on "both sides" when performing conversions. In retrospect I had reached my conclusions on the behavior of Photoshop 6 with scnr profiles.
Thanks for the clarification Bruce.
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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