Re: working with sixteen bit scans
Re: working with sixteen bit scans
- Subject: Re: working with sixteen bit scans
- From: Roger Breton <email@hidden>
- Date: Tue, 12 Mar 2002 07:51:04 -0500
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I have now started working with 16 bit linear scans off my BetterLight scan
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back. Well they are actually 14 bit, but anyways I was wondering after I do
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a assign profile in PS6 which I use my 16bit dcam profile generated with
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Pictos InCamera, I want to convert to a working space. Which In this case I
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took a look at DonRGB but I noticed that it still clipped some colors so I
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am know trying Kodaks ProPhoto space which is huge. I hope I am ok because I
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am still 16 bit mode. The question is when I do the convert to ProPhoto,
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should I use Perceptual or realative intent and also what about Black Point.
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Thanks
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_________________________________
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Steven Kornreich
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Kornreich Communications Inc.
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email@hidden
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http://www.beachlook.com
I was asking myself the very same question recently. The way I see it is
that since ProPhoto is a Matrix-based space, only relative colorimetric can
be supported. In my limited knowledge, it does not matter whether the Source
is LUT-based or Matrix-based since the Destination is Matrix-based. So this
conversion can only be done one way, RelCol. And it makes sense that way
too. It's like a change of primaries, from one color space to another. But I
can't remember whether InCamera's profile are Matrix or LUT-based? But even
if InCamera's profile are LUT-based, I'll bet you that the only one tag is
implemented, RelCol.
Perhaps Bruce Lindbloom could shed some "light" here?
Regards,
Roger Breton
Laval, Canada
email@hidden
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